Mineralogia: OR, An Account of the Preparation, manifold Virtues and Uses of a Mineral Salt, both in Physic and Chirurgery; which is so safe, pleasant and effectual in its Operation, that it may be taken by those of all Ages and Constitutions with great Benefit, and without Danger of the least Prejudice.  
To which is added, A short Discourse of the Nature and Uses of the Sulphurs of Minerals and Metals, in curing the most Chronical and pertinacious Diseases.  
By Chr. Pack, Philo-Chymico-Medicus.  
LONDON: Printed and are to be sold by D. Newman, at the Kings-Arms in the Poultry, 1693.   

An Account of the Virtues and Use of Sal Solutivum, Prepared only by Chr. Pack, at his Laboratory, next Door to the Gun in Little-Moor-Fields near Moorgate.  
AFTER many years Experience of the virtues and worth of this Medicine, in helping and curing many Diseases, to which the Body of man is subject, which of late I have also much improved and exalted in its Virtues; I have determined at length for a public Benefit (and to excuse myself from writing many Letters) to publish the following Account of it.  
I. It is a Salt prepared of Mineral Subjects, by apt Mediums purified and reconciled to the Archaeus, or Aura vitalis of the Humane Body, (which is the adequate object of Medicine) and thereby becomes a Salutiferous remedy ennobled with Virtue's sufficient for the curing of many Diseases. This Definition ariseth from its Subject, Object, and End.  
II. It is neither an Acid nor an Alcaly, but a Salt of a middle Nature, being able to pass the several Digestions unchanged, and in its passage to resolve and absterge all Preternatural Coagulations, for which Reason I call it Sal Solutivum.  
III. It is endowed with those Four general Properties, viz. Cathartick, Diuretic, Deobstruent, and allaying of all Preternatural heat and Acrimony: Besides which, as I have now exalted and improved it with the noble Sulphur of Venus, it is a general easer of Pain, and Extinguisher of Venereal Venom's, that are not grown to a confirmed Pox, as is manifest by what it effects now in alleviating the Pains of the Gout, Rhumatism, Toothache, Colic, Griping of the Guts, Virulent Ghonnorhaea's, &c. beyond what it could have done heretofore.  
Having thus briefly premised its Nature and Qualifications in general, for the satisfaction of such Physicians as may desire to make use of it; I shall now Address myself more particularly to show its Virtues and manner of using.  
1. Sal Solutivum purgeth the gross Excrements, and most viscous Humours of the first passages without Nauseating the Stomach, or the least griping Pains. 2. It is singular in opening Obstructions of the Vessels and Vis●era. 3. It purifies and invigorates the whole Mass of Blood, and restores it to i●… natural State; for being an amicable Salt, it hath admittance into the Blood, and reacheth, as Helmont saith of fixed Alcalyes made Volatile, usque ad limen quartae Digestionis. But this is denied to all ordinary purging Medicines, which if through any inadvertency of the Archaeus, they chance to slip into the lacteal Veins, and so into the Blood; they cause gripping Convulsive pains, Stiches, Flux of Blood, Faintings, etc. till Nature hath again discharged herself of them; and so instead of purging the Blood, too often both corrupt and exhaust it. And these two Properties are well worth the observing, being not to be met with even in the mildest of the common cathartics. For this cause it is of great use in Fevers, neither disturbing the Juices, nor accending the Blood. I have seen many Fevers proceeding from Surfeits, both in eating and drinking quickly cured by it, and even Hectic Fevers themselves in a longer time, but such as I judged to proceed from a Scorbutic or venereal Cause: As for those which are wont to accompany a Pthisis, I have had no Experience of it in them, yet I doubt not but even in those it would allay the Preternatural heat.  
But that this Medicine may be given to the best advantage, it is necessary in the Administering it, to have regard to two special Intentions, which Physicians are wont to observe in the curing Diseases, viz. 1. The purging the first passages, the Stomach and Intestines of gross Excrements and Filths. 2. To open and dissolve all Stagnant and obstructing matter in the Viscera, as the Pancreas, Mesentery, Liver, Spleen, Reins and Womb, and to correct and purify the Blood, when it decllnes from its natural Crasis. The ordinary Dose of this Salt to purge according to the first Intention (which only is purging according to common Acceptation) is from half an Ounce to six Drams, dissolved in a Pint, or a Pint and a half of warm Posset-drink, new Whey, or pure Water, and drank in the Morning fasting. Those that cannot take such a quantity of Liquor, may dissolve their Doses in half a Pint (which will presently dissolve it if it be warmed) and drink another half Pint presently after it, and a third half an hour after that, and fast till Dinnertime, except the Patient have a mind to take a Porringer of Water Gruel, or thin Broth; neither will a draught of Ale, or a Dish of Tea at all hinder, but promote the working of it. Those who like neither Posset-drink, Whey or Water, or want the Conveniency of getting them, may take it in Ale, and it will do well enough; although in some few Persons I have known it cause a Drowsiness when taken in spirituous Liquors; the Reason of which is its partaking of the Anodyne Narcotick Sulphurs of Mars and Venus, which readily associate themselves with the vegetable Sulphurous Spirit, by which they are quickly carried to the Brain: yet the use which may be made of this in some Cases, is not inconsiderable as is well known to Physicians.  
This Medicine doth not only gently dissolve and expurge the Excrements of the Stomach and Guts, but it also corrects the violence of all Preternatural Purges, if you put but two Drams of it in their infusion, or drink the same quantity in a draught of warm Posset-drink after Pills which gripe and operate Churlishly; It hath also a power of stopping the working of Vomits, some of which greatly incommode the Stomach, by Vellicating its Membranes, and impressing them with a Nauceating Character; to prevent which let two or three Drams of the Sal Solutivum, be dissolved in half a Pint of cold water, and drank about half an hour before the Vomit is taken. Or in case a Vomit be taken which worketh too violently, or too long, that is when the Stomach is wholly emptied, and yet the Patient continueth to reach, let a Dram and a half, or two Drams of the Salt be dissolved in a large Glass of warm Posset-drink, or rather warm Water, (because Posset-drink may at that time be disgustful) and be drank off. Do the same when a Vomit hath done working, and yet the Patient finds a swimming or Giddiness in the Head, or a Nauseousness, or disposition to Vomit, for the Salt will free the Tunicles of the Stomach, and contract and corroborate them, precipitating the offending Particles per inferior a; but I add not this to encourage any Body to meddle with such Physic without due Advice, but to show the safety and efficacy of the Medicine. N.B. This Salt never leaves the Belly bound as the common Purges do, but always soluble, and is the best Remedy that I know against a Costive Temper of Body.  
The second Intention is to alter, and open Obstructions in the Liver, Spleen, Pancreas, Mesentery, Reins, Bladder, and Womb; from which proceed many tedious and stubborn Diseases, as the Scurvy, Dropsy, Jaundice, hypocondriac Melancholy, Vapours, Green-sickness, Rhumatism, inveterate Headache, Restlessness, Sleepiness, Vertigo, Frenzy, Cramps, Convulsions, Internal Inflammations, and Aposthumes, Piles, Exulcerations of the Kidneys and Bladder, Gravel, stoppage of Urine, etc. together with many others arising from Obstructions, and Acrimony of the Blood, and viral Juices.  
In all which the chief end of this Medicine being to resolve and attenuate the thick and stagnant Juices, or Excrements of the several Digestions which lie in the smallest passages, to Contemper any excess of quality in the Bile, Lympha, and Blood, by mingling itself with the Chyle and Blood, and insinuating itself into the more inward recesses of the Body, this method is to be observed.  
First purge the Body with half an Ounce, five or six Drams of the Salt (according to the Patients are and strength) dissolved either in Posset-drink, Whey, or Water, as you please, to carry off the gross Excrements of the first passages, and to make way for the better Penetration and distribution of the Remedy into all the parts of the Body. If the first Dose purge not to your mind, take another the next day, that the aforesaid end may be answered. Then dissolve the same quantity of the Salt you gave to purge in a Quart or three Pints of pure water, and let the Patient take a third part of it the same Night, after the purge three hours after Supper, another third part the next Morning early before he riseth, that he may sleep upon it, and the remaining third part in the Daytime between Meals, and this to be continued for a Week, Fortnight or three Weeks, etc. as occasion shall require. But because some Patients cannot drink any considerable quantity of water, without nauseating or other inconveniency to their Bodies, the Physician may accommodate the quantity of water to his own liking, provided he order but enough to dissolve it well, that it may not taste too strong.  
This Salt answers all the ends of the Mineral-Waters, both purging and Chaly beat; besides, and beyond which it hath some Advantages, one of which is the certainty of its Nature and Operations, the which cannot be affirmed of any of the Mineral Springs; seeing that there may be a growth, or accidental Concourse of various matter in the passages of the Earth, which may variously impregnate the waters passing through them, and make some Alteration in their Properties. Besides the Patient is obliged to drink a large quantity of the Mineral Waters, or they will not work, which if they do not, they cause Gripe, Stiches, Sleepiness, Feverish Dispositions, and other inconveniences, arising from the Crudity of the Minerals, as well as from the quantity of the Water; especially the Chalybeat, which also require purging before, and after a Course of drinking them, to prevent some hurts, which otherwise might arise by their use; which every one is excused from in the use of this Salt, for where a large quantity of water is not convenient for the Patient, a Quart, a Pint and a half, yea even a Pint may serve, this being also its own purge: Besides it being free from Mineral Crudity, and wholly pure and friendly to Nature, can never do hurt, but always good, by being long retained in the Body. Nor is it to be reckoned amongst the smallest Advantages to those who are confined to a place by Business, or by the Narrowness of their Fortune, that they may take this artificial Mineral-Water, at all times of the year, and in all places, without loss of time, hindrance of business, or the charge of Coach-hire to and from the Wells, or more chargeable maintaining themselves there.  
If you would use it instead of the purging Waters, as Epsome, Dulwich, Northall, etc. dissolve six Drams, or three quarters of an Ounce of the Salt, in the same quantity of pure Spring-water, as would be fit for the Patient of any of the purging Waters, viz. from three Pints to three Quarts, ordering him to drink it by degrees in the Morning, in the space of an hour and a half, or two hours, and to walk, or use some Exercise in the open Air (provided it be in the Summer time) and to order himself as if he were drinking the Mineral purging Waters.  
But if you would have it answer the end of the Chalybeat waters; as the German-Spaw, Tunbridge, Islington, etc. viz. to purge but little by Stool, but to alter and open Obstructions, then use it as in the second general Direction already given.  
Now although this Salt be of great use and service in very many diseases, yet I have by long Experience observed, that in some it is specifically potent; as in the Scurvy, Jaundice, Dropsy, Hysterical Suffocations, Melancholy Vapours, Green-sickness, stoppage of the Menses, Piles, Ghonnorrhaea, Colic, Diarrhaea, Bloody Flux, Griping of the Guts, Worms of all sorts, old head-aches, Inflammations and Rheums of the Eyes, Itch, and Choleric Eruptions of the Skin, stoppage and heat of Urine. In all which Cases I may truly say, it hath signalised itself, and often exceeded my Expectations. And although from the Directions already given, any one may easily collect the way of giving it in those Diseases, yet for the public Good I shall be somewhat more particular.  
In the Scurvy, I first purge the Patient with a Dose or two of Sal Solutivum, as at the beginning of the second general Direction; then I dissolve an Ounce of it in a Quart of pure water, by shaking them together in a Bottle till all the Salt is dissolved, and then order the Patient to drink half a Pint of the same at night going to Bed, and another half Pint early in the Morning, so that half an Ounce of the Salt is taken in a day, and this I continue daily for a Month or six Weeks, according to the age and strength of the Disease, ordering the Patient besides to drink a pure and well rectified Volatile Spirit of Salt, in all his drink as well at meats as at other times, ten or twelve Drops at a time or more, so that he may drink the quantity of forty or fifty Drops in a day, (which Spirit of Salt may be had at my House sealed up in Glasses with printed Directions for its use. Price of each Glass a Shilling) for such as have the Scurvy manifested in their Mouths, by Soreness of the Gums, and their readiness to bleed upon every light occasion; I order an Ounce of the salt to be dissolved in a Pint of warm water, and the Mouth to be well washed with some of that water warm two or three times a day.  
In the Jaundice, I give it in Summer in Water or Whey, in Winter in warm Posset-drink, every other day five or six Drams, or two days together (according as it works) then intermit a day and give it again, and on the intermitting days half the Dose, continuing the use of it, till the Yellowness and Faintness cease.  
In the Dropsy, I give it in the same manner as in the Jaundice, only in a less quantity of the Vehicle. I have cured both the Ascites and the Anasarca with it, but thwether it will do aught in a Tympany, I know not; having never given it that I remember in that Disease, for in that I am wont to use my Arcanum Universal, Species Universalis, and Tinctura Regalis. But in an Ascites, whether it proceed from an Obstruction of the Liver, Kidneys, or Ureters, or from a Rupture of the Vasa Lymphatica, from their two great Repletion; (from which last I persuade myself more Dropsies do arise than from any other cause) this Medicine answers all the Intentions of cure, because it not only opens all Obstructions, and pleasantly reduceth the water, but also by its strengthening and Balsamic Virtue, Conglutinates the breaches of those Vessels, and Remedies the too great laxity of the Viscera, having all the Virtues of a complete vulnerary Medicine, as I shall have occasion to show by and by, when I come to speak of its external use.  
In Hysterical Suffocations, commonly called Fits of the Mother, and Melancholy Vapours, I give two or three Drams dissolved in a Pint and a half, or a Quart of pure water upon the approach of the Fit, or if that cannot be, as soon as the Fit is off, and in the time of the Fit (when greater quantities cannot be got down) I order the Dissolution of the Salt in water to be given by Spoonfuls. The next day I purge with the whole Dose dissolved in a Quart of water. And for as much as those suffocating Fumes are caused by Obstructions, and Fuliginous matter remaining in the small Vessels, where they ferment from time to time, causing a puffing up, and Sense of fullness (especially sometime after eating) it is necessary to take the Salt daily for sometime, to open and carry off the Obstructions as in the second general Direction; by this means their frequent Returns may be prevented, by extirpating the Evil which frequently (in those dismal oppressions to the poor female Sex) is but only palliated.  
In the Green-sickness in Maids, it is necessary to dissolve an Ounce of the Salt in a Quart of pure water, and to take half a Pint of the water at night going to Bed, and the same quantity early the next Morning, continuing this Course daily for three, four, or five Weeks if need be, not omitting to purge the Patient first with a full Dose or two at the beginning, as in the second general Direction, as also two or three days before the full of the Moon, that Nature may be the more effectually helped in this way of operating. Where the Menses are only stopped, it is to be taken as in the second general Direction for Obstructions; besides which the Patient is to be purged once or twice with the full Dose, two or three days before her monthly time of Expectance. This Medicine is also of singular use for those Women whose Months are about to leave them, in preventing many disorders which are occasioned thereby; in which case it is to be taken once or twice to the quantity of half an Ounce, or five or six Drams for three or sour Months successively, about the time when they ought to flow. I have known some Women of Fifty years of Age, who have by the use of this Medicine seemed again in that respect to grow young. I have also easily and effectually with this Salt delivered some Women of false Great Bellies.  
About two Months since, I gave three quarters of an Ounce of Sal Solutivum to a Maid about twenty one years of Age, who had a very ill habit of Body, and a pale sickly Complexion, having never had the Course of Nature in due order or quantity, and for some Months passed totally suppressed. She was now seized with a grievous pain in her Right side, emulating an illegitimate Pleurisy, which (as she told me) had frequently assaulted her for some Months past, for the removing which Pain I gave her the Salt, which gave her seven or eight Stools before Noon without any Sickness or Griping, by which time her Pain was quite gone out of her side: She eat some Dinner, and about two hours afterwards discharged her Stomach by Vomit of a great quantity of filthy green Matter, after which she had two or three Stools more, with which her Menses came down plentifully, which with her often going to the Vault occasioned her catching of Cold, and a sore Throat. I ordered she should have somewhat warm and comfortable, and go to Bed, and keep very warm the next day which she did; the Night following (she still complaining of her Throat, and a Soreness all over her Bones, (as she phrased it) I ordered her ten Grains of my Pilula Balsamica which sweat her very plentifully; during her sweeting her natural Purgations were but little, but as soon as that was over they returned again, continuing for a due time, since which she hath remained well.  
It is a singular Remedy for the Worms of all sorts, killing them and resolving them into Slime, and purging their putrid Matter out of the Body. To Children from three years of Age to seven, I give from a Dram and a half to three Drams, from seven to fourteen, half an Ounce, from fourteen to twenty, or more, from half an Ounce, to three quarters of an Ounce, or six Drams dissolved in fair Water, Whey or Posset-drink, and continued every day for a Week together. Where it is difficult to get Children to take it, a little Sugar may be added to the Dissolution to make it the pleasanter. My Volatile Spirit of Salt also effecteth the same in a longer time in those Children which cannot be persuaded to take the Salt, which they may take in all their drink, and not discern it. The Salt and this Spirit used together are still more effectual.  
In the Piles I give a quarter of an Ounce of the Salt dissolved in half a Pint of water in Summer time, or warm Posset-drink in Winter, which just keeps the Belly soluble, and by dulcifying the Acrimony of the protruded Blood takes away the Pain and Inflammation; besides which, if the Piles be outward, I order them to be often embrocated with my Aqua Phagadenica, and fine Rags to be laid upon them wet in the same water: but if they be within the Anus, than I order the same water to be warmed, and injected by a Syringe twice or thrice a day, and a Rag three or sour times double well wetted in the same to be applied outwardly, and by this Course the Piles by degrees dwindle and shrink up like dried Grapes. This Course hath never failed me, but hath been effectual even when the Piles have been inveterate and fistulated. To those who are subject to the Piles, I advise the daily use of my Volatile Spirit of Salt in all their Drink, to the quantity of thirty or forty Drops a day, it is far better in this Disease than any Diet-drink.  
In Virulent Ghennerheas or Claps, I give first six Drams of the Salt dissolved in fair water in Summer, or in a Pint of warm Posset-drink in Winter, ordering the Patient to drink another Pint within an hour after, than I give half an Ounce so dissolved every Morning in a Pint of the Vehicle continuing it till all the heat and sharpness is gone, and the Gleet fit to be stopped, which sometimes will be in a Week, sometimes a Fortnight or three Weeks, according as it is of shorter or longer standing, or the Diseasyfying-power milder or stronger; for it pleasantly and effectually educeth the venereal Venom, purifieth the Seed, and strengtheneth the Spermatick Vessels. But when the Issuing is fit to be stopped, I give my Balsamum ad Ghonnorhaeam every night at going to Bed, from twenty to forty Drops mixed with a little Sugar, and half an Ounce of the Salt every other Morning. But where a Ghonnorhaea hath not been taken in time, or hath been unduly stopped, so that it be turned into an incipient Pox, and I find by giving six or seven Doses of the Salt that it cannot reach it, than I have recourse to purging and sweeting, alternately with my Manna Mercurii, and Aurum vitae Bezoardicum, which usually effects the Cure to satisfaction But in a Chonnorhaea unduly stopped, (known for the most part at the first by a painful Tumour in the Groin) when it hath not exceeded a Month, three, four, or five Doses of this Salt will set it a running again, and aftewards Cure it, being used as above with the Balsam, but in longer time. I have known some who have fallen into the hands of Men either unskilful in this matter, or worse, who have endeavoured to discuss those tumors, which themselves have made by their unseasonable stopping of a Ghonnorhaea, and have sometimes effected it so well, as when the Patient hath thought himself cured of a Clap, he hath soon after been attacked by the Symptoms of the Pox, and so the last Error of the Physician was worse than the first.  
In the Colic or Griping of the Guts, where there is great pain, I dissolve six Drams or three quarters of an Ounce of the Salt in a Quart of hot spring water, and order the Patient to drink three or four Glasses in the space of half an hour, as hot as he can: But if there be Vomiting let it be drank more leisurely, viz. A quarter of a Pint once in a quarter of an hour till the Vomiting cease, then take notice how much of the Medicine hath been vomited up, and give so much again, that the Patient may have the full Dose. If in the water you intent to dissolve the Salt in, you first boil the bruised Seeds of Anise, sweet Fennel, Carraway and Coriander, a Dram or two Drams of each, to a Quart of water, it will be the better, because those Seeds have a peculiar Virtue of pacifying the Exorbitant fury of the Pylorus; you may put in the Salt in the boiling, which will extract the Virtues of the Seeds, sooner and better than water alone can do. But beware that you neither boil, infuse or warm any Liquor in which the Salt is, in Brass or Copper Vessels, but in Silver, Tin or Earth, lest it attract from the the Metal somewhat disagreeable to the Stomach. It usually easeth the pain in two or three hours' time, sometimes sooner, but where the Stomach will not retain it, or it doth not overcome and expel the obstructing matter, in a few hours time, I give a second Dose, and if that fail (as I have some few times seen in the dry Gripes and Wind Colic) than I have recourse to my Arcanum Universal, which (Blessed be the Almighty) hath not that I remember ever failed me. Note that after the Pains are allayed, it is necessary to purge the Body divers times, with the Salt dissolved in the aforementioned Decoction of Seeds, to carry off the remaining Excrements, which otherwise, retaining a diseasy Ferment, may soon cause a fresh disorder. But in a bilious Colic, known by bitterness of the Mouth, Vomiting, Yellowness of the Skin, etc. you may leave out the Seeds and give it in water only, the Seeds being more precisely adapted to the help of the Wind Colic, Gripes, iliack Passion, etc. yet they are endowed with a general Virtue of pacifying the Pylorus.  
In a Diarrhaea or common Looseness, boil some Bran in pure water, strain the Decoction, and in a Pint of it dissolve three Drams of the Salt, and drink it up at twice, at three or four hours' distance: do this three or four times over if need be. But in a Dysentery or Bloodyflux, I give the Salt dissolved in a Decoction of red Rose leaves: half an Ounce a day as long as it is required, after both which, the Patient must be purged with the whole Dose dissolved in a Quart of the same Decoction, in which it was given before to sweeten the Acrimony. In the Bloodyflux, I have given six Drams of it Clyster-wise in the foresaid Decoction, besides giving it at the Mouth by two Drams at a time twice a day, and that with great Success.  
In Headaches, Inflammations and Rheums in the Eyes, I give five or six Drams every other day so long as there is need, many of which it hath taken away at three or four times taking. But as an Auxiliary Topick, in Inflammations and Rheums of the Eyes, I order a few drops of my Aqua Opthalmica, to be dropped into the Eyes two or three times a day.  
In the Itch, Botches, Boils, and other Choleric Eruptions of the Skin, I give half an Ounce or five Drams every day, dissolved in a Quart or three Pints of water or New Whey in the Morning, as the Mineral-Waters for a Week, Fortnight, Three weeks, or a Month together, as the greatness of the Disease requires: In those Cases it cannot be enough commended. It hath cured some that have been adjudged Leprous. In those Diseases I order together with it my Volatile Spirit of Salt to be taken inwardly, as in the Scurvy, and my Aqua Phagadenica to be used outwardly, by washing with it twice a day.  
In Heat or Gravel in the Kidneys, or stoppage or heat of Urine, first I purge the Body with one whole Dose, then dissolve an Ounce in a Quart of water in Summer, or warm Posset-drink in Winter, and let the Patient drink half a Pint at night going to Bed, and also early in the Morning; besides which I order thirty or forty drops a day of my Volatile Spirit of Salt, continuing the use of those, till all the Preternatural heat be gone, the Obstructions opened, or Gravel ceaseth to come away.  
Thus I have in as brief a manner as I could, set down my Experiences of the internal use of this Medicine, wherein I am not Conscious to myself, that I have in any thing commended it beyond its just merit. I shall in the next place and somewhat concerning its external Virtues and Use; to which by way of Conclusion and Confirmation, I shall subjoin the Observations of some learned and skilful Physicians concerning its Virtues, which they have been so kind to Communicate to me for the public Good.  

Of the External use of Sal Solutivum.  
This Salt hath its peculiar Excellencies in Chirurgery, as well as in Physic; it presently stops bleeding; cures an ordinary Wound, whether incised or contused, at one single dressing, but if the Wound be large and lacerated (provided it be timely and duly applied) at two or three dress, as I myself have divers times seen. It takes away all Inflammation and pain from the Wound in half an hours time, never suffering it to come to Suppuration, but cures it by the first Intention. There are three ways of preparing it, to apply it to Wounds.  
The first is to take some of the Crystalline Salt in the Summer time, and spread it thin in a broad Glass dish, or Earthen one glazed, and expose it to the Sun all day, stirring it now and then, and covering it with a clean Paper, to keep any dust from falling into it, and in a few days you will have it come to a Powder like fine Flower, when it is brought to this state, I believe it will perform all things which are rightly ascribed to the Sympathetick powder; but this I leave and recommend to the Trial of the ingenious; among which, if any shall be so generous to Communicate to me any effects of this Salt, which may be of further use to the public, they shall be thankfully received, and again improved to that end. The Second way is to put some of the Salt into double Papers, about half an Ounce or less in a paper, and wear it some time in the Pocket, that the warmth of the Body may supply the place of the Sun's heat, and in like manner bring it to an impalpable powder, and this may be done in the Wintertime without attendance or trouble. The third way is to dissolve four Ounces of the Salt in a Quart of warm water, put into a Bottle and shaking it till it is all dissolved, and keeping it close stopped for use. The first way it is most powerful, the last, or the least Efficacy, but either way will well serve.  
For a small Wound or Hurt take a little of the powder of the first or second Preparation, and lay it upon the Wound pretty thick, and bind it on close, so that no Air may come in, and let it continue on till 'tis healed, which will quickly be, but it is convenient to let it remain on for two or three days, that it may be confirmed. If at any time when you take off the dressing, you find in a Cut that it is not sufficiently consolidated, or in a Bruise, that all the Soreness and Blackness is not gone, presently apply a little more of the Medicine, and let it lie till the Hurt is quite well. But if you have not the powder of the first or second Preparation, then take a pledget of Lint or fine Tow, or a fine linen Rag three or four times double, which let be well and throughly wetted with the water of the third Preparation, and apply that to the Hurt as the other, which once in twelve hours or oftener, if need be, you may moisten all over with some of the same water, without opening it if the Wound be large. Where the Wound is large or lacerated, first let it be clean washed with warm Urine, so that it may be freed from Dirt or other extraneous Matter, then take such a quantity of the powder, as you think necessary well to cover the Wound, and mix it with so much of the White of an Egg (first well beat till it be thin) as will make it into the Consistency of a pretty thin Lineament, which spread upon fine Tow, or fine Linen, and apply it to the Wound with convenient Bandage, letting it remain two or three days before you open it, except in that time you find any considerable pain, which if you do, it is a Sign that the Air hath access to the Wound, and then open it and presently apply a fresh dressing, as close as possibly you can. Note, that if there be in the Wound such torn ragged Flesh, that hath taken Air, and you judge uncapable of Conglutination, take it off with your Scissors before you apply the dressing. If you have not the powder, then use the water as above directed. The powder will answer all the Intentions of cure in an Amputation, being duly applied with good Bandage.  
It cures Ruptures in Children, if the Rupture be first put up, and then the powder mixed with the White of an Egg (as for a Wound) and applied to the Scrotum or Navel (as the Rupture is) with convenient Bandage, and renewed every fourth day, and the Salt daily taken inwardly dissolved in a Decoction of Comfry-Roots, so much as may just keep the Belly lose, but not purge; for the straining of the Abdominal Muscles in going to Stool is a great hindrance to the Agglutinating of Ruptures. Suppose the Child be two or three years of Age, dissolve half an Ounce of the Salt in a pint of the Decoction, and give the Child three Spoonfuls of it Night and Morning, renewing the Decoction and Salt against that is done, and continue the Course for six weeks, and by God's blessing the Cure will be effected. If the Child be younger two Spoonfuls may be enough, if elder, you must give it more according to the Rules before given, varied with Discretion.  
It also effects the same in Fractures of Bones, being used in the same manner, both inwardly and outwardly, for it powerfully assisteth Nature, in forming the Callous, and also preventeth Fevers, which not seldom happen upon those Accidents.  
Half a Grain or a Grain at a time, of the Powder may be blown up into the Nostrils daily Night and Morning, to serve as an Errbine or sneezing Medicine, for it pleasantly and copiously evacuateth superfluous Moisture, by which it cureth Catarrhs, it being also taken inwardly every other day for some time, in such a quantity as may give three or four Stools, which is ordinarily done with half an Ounce. It gives present ease in the Toothache, about a Dram of the powder being tied up in a fine Rag, and applied to the pained Tooth; but this is to be understood when the Toothache proceeds from a sharp Humour, irritating the Nerves which are inserted into their Roots, but not of the pain of a hollow or rotten Tooth, excepting that in those it may give some short ease: but it is necessary besides to purge two or three times with the full Dose of the Salt, to dulcify and carry off the sharpness which causeth the Pain.  
I could here set down many more Uses of this benign Salt; but because they are not precisely useful to a Physician or Chirurgeon, I shall leave them to some other opportunity, till I see what Reception the things I have already published concerning it, will meet with, and subjoin the following Accounts which I have received of it from others.   

Sir,  
I Have only this day received your Letter, and if you writ a former one to me, I assure you, that it never came to my hands, and therefore must have miscarried, neither have I had any notice of your Intentions, in making of your Sal Solutivum more public; only your old Acquaintance, and my worthy Friend Mr. T. did lately acquaint me, that you designed to afford it at a lower Rate than hitherto you have done.  
I could have wished, that you had always Sold it at a more easy Price, for than it had been no small advantage to the meaner Sort of people, amongst whom the happy Effects of it, might have been more largely experienced, than their mean Purses could admit of; it being one of the most General, Safe and useful Medicines that ever I have prescribed; not only in those Cases wherein you so much recommend it, but likewise in divers others, in which it may be, you have not hitherto made any Trial of it.  
In colics and the Griping of the Guts, where few purging Medicines take place, it is s●arce credible, with how much ease it carries off those peccant fermenting Humours out of the Bowels, removes Pains, and indeed instar incantamanti, affords more sure relief than Gallen Cupping-Glass ever did.  
It is of Excellent use in the Strangury, Gravel, and Nephritick Pains, if continued for some time, and given in a proper Bochet for the usual Drink.  
Against Worms, in all persons, and of any age, it is a Medicine of singular Efficacy, and no less powerful than pleasing to Children, when sweetened with a proper Syrup to promote its quicker Operation.  
It is the very best Medium to prepare Chaly beat Medicines by, that I yet could ever find, and when intimately joined with Mars, which by a proper 〈◊〉 〈◊〉 〈◊〉 〈◊〉 〈◊〉 is easily and readly performed, it affords the best, and most effectual Remedies, in Cachexia, affectione Hypocondriaca, Mensium suppressione, chlorosi sive palore Virgineo etiam in ipso scorbuto 〈◊〉 〈◊〉 〈◊〉 〈◊〉 〈◊〉.  
In excessive Costiveness, where the Bowels are parched up, and inflamed, their motion inverted, and thence those miserable Pains of the Iliack Passion; and where other Glisters though often repeated have no effect, a sufficient quantity of this Salt, dissolved in decocto communi pro clystere, will certainly and happily effect the Cure.  
Externally in all Wounds and Ulcers, it is the most gentle and best Mundifying and cleansing Medicament that I think is extant; and all Men of Learning or Experience, will assent, that that is the great, if not the only Intention required in these Maladies, and that he who can happily answer that one Indication, without Corrosives or doloriferous Medicines, will easily keep off all evil Attendants, and then Nature its self will prove the surest and swiftest Digestive, Sarcotick and Epuletick Medicus.  
There is one Distemper, which it seems was very rare in Gallen days, and which he relates only twice to have seen, tho' then arrived at a very great Age, viz. a Dyabetes; but the Debaucheries of our Times hath rendered it more common amongst us. I having been sufficiently puzzled in two of my Patients afflicted with it, notwithstanding my utmost Care, in prescribing the best of Medicines, and exactly following the Methods of the most learned Physicians, tho' wholly without Success, till at last I began to consider of Sal Solutivum, and its constituating Parts; and then by a very different Method, from the usual way of exhibiting it, it had in both Cases that happy effect, which gives me some hopes, that if rightly and duly ordered, it may prove almost as effectual in that deplorable Distemper, as the Cortex in intermitting Fevers.  
I shall only give you this one more of my Observations about it, and it is in a Disease, which cathartics instead of relieving generally render more violent, and tho' administered even in the intervals of Fits, and after a long time of Cessation, yet usually doth with greater violence cause their Returns; I mean Hystericks, vulgarly called Fits of the Mother: in which I have scarce ever known this Salt to fail, being given in a large Proportion of a very easy, tho' most proper Vehicle; it is then strangely grateful, and even in the taking, as well as in the Operation, doth with mighty ease, yield an incredible relief in that troublesome and vexatious Distemper, both to the Patient and Physician.  
Thus Sir I have, tho' very concisely, answered your Request, and amongst my Observata passim rariora, tum Medica tum Chyrurgica, (which as my time will permit, I am preparing for the Press.) I shall say much more concerning this Salt, both as to its Doses, proper Vehiculi, ways of Exhibiting, times of Administering, and rightly applying it to diversity of Constitutions, for without a due Consideration of all these, the greatest Physicians would scarce differ from Empirics, and must only Act like Old women. I am,  
Warwick March 11th. 1692. Sir, Your humble Servant, W. Johnston.   

An Abstract of a Letter touching Sal Solutivum.  
I Have much to say in the Commendation of Sal Solutivum in general, but especially on its transcendent Effects (by the Blessing of the Almighty) on two late Patients of mine; the one in a putrid Fever, occasioned by a Surfeit; the other of an Athletic habit of Body, being Asthmatick, and afflicted with a painful Tumour in Ano.  
The first of these Patients had been under the hands of two other Physicians, for seven or eight days, who after they had skinned him alive left him to combat with Death, as impossible to be cured. The method they took was this, first they prescribed him a Sudorific, ordering the Sweat to be promoted for several hours, the same Evening they gave him a Clyster, the second day another Clyster, the third day another, after which they opened a Vein in his Arm, not omitting Cordials, Night draughts, etc. After his second Clyster he fell into gripe of the Bowels, than they followed him with more appropriate Clysters, and other Medicines inwardly adhibited for that purpose. After bleeding he fell delirious, even to a full Distraction, to remedy which they blistered him in divers places, but all in vain, which they seeing, put him under the Sentence of Death and so left him. In this condition he had remained several days when I was sent for to him. When I came, I greatly blamed the Physicians to their Faces, for that they judging his Disease to arise from a Surfeit, had not in the first place discharged the Viscera of Concoction, and not to have drawn the Crudities by Clysters into the Guts, and then for their impertinent and ill timed Sweeting of him, but above all for their bleeding him, which soon sucked in the Defilements of a corrupted Chyle into the Veins, and put the whole Mass of Blood into a Ferment. They made little opposition to the Charge, and the sole care of the Patient was put upon me. He was still in a distracted Condition, and his Eyesight quite taken away, yet finding by his pulse that he had strength enough to bear the Sal-Solutivum, I gave him a Dose, which in an hour gave him a motion to Stool, and within four hours gave him six Stools to my great satisfaction; about the end of which time the Patient fell into a sound and quiet Sleep, I then again feeling his pulse, told his Relations he would have no more raving Fits, which (praised be the Almighty) accordingly happened, nor did I besides this Administer any thing, but a little Cordial impregnated with your Elixir Proprietatis volatile to his full Recovery.  
Being just now sent for to visit a Patient, I have not time to write more, concerning those two Cures above said, but the Persons are now both in good Health.  
Aug. 4th, 1692. Yours F. B.   

An Abstract of another Letter from the same Physician.  
AS touching the Virtue of Sal Solutivum, if I could say no more in its Commendation, than what I have already written you touching the Case of the young man in a Fever with Distraction; even that alone were worthy to be published for the general Service it might do in such Cases. Yet whether it might always have the same good effect is to be doubted, if he that Administers it be ignorant of Nature's Indications, and the true timeing of Medicines. For when I came first to the Patient, my design was to have administered a Dose of your Arcanum Universal, by reason of his great complaint of his Head, but finding him very weak, and that his Eyesight was almost lost, by reason of the violence of his Fits, and hearing a croaking noise in the Intestines, I presently changed my Intention, and instead of the Arcanum, ●ave a Dose of Sal Solutivum, which had the ●lessed effect before written. Note that this was done on the 11th day of his Disease.  
The Salt had the like Success in the Di●…emper of a young Woman, occasioned from 〈◊〉 fright by a Fall from her Horse: In the ●●st place, she was seized with Convulsions ●nd Hysterick Passions, which returned three ●r four times every day for several days together; with a continual pain about the Region on of her Spleen, but during the time of her Fits only a great pain in her Head. A Neighbouring Physicians advice was taken, who endeavoured with pearl Cordials, Anti-Convulsive and Hysterick Remedies to appease the fury of the Spirits, but without Success; for on the contrary the Fits came on with greater violence, and she also in the interspace grew gradually so Melancholy, till at last she became as dumb to almost all Discourse. I being sent for, after Enquiry into the Nature of her Disease, and the Remedies which had been Administered; I found that she had a Suppression of her Menses for some Months before; she also being of a Sanguine Complexion: But soon after I came, perceiving one of her Fits a coming, I gave her thirty drops of your Elixir Epilepticum, which no sooner was warm in her Stomach, but the Fit gradually remitted, and thereupon her Fits of both sorts wholly ceased; but the pain of her Spleen, obstruction of the Womb, and the abounding of Melancholy remained, neither had she the benefit of Stools as usual. I considering it was near the prime of the Moon, advised a Clyster for that Evening, and the next Morning six Drams of Sal Solutivum. And whereas she was before confined to her Bed, lying with a Melancholy Eye fixed upon the Wall, I ordered her to rise, and to be employed in some Household business, or to walk with a Companion in the Fields, which she accordingly did. The third day after, coming again to see her, and enquiring of the Operation of her Physic, I was informed, that the Salt had given her two or three Vomits, (which way of working is unusual with it) with several Stools, and yesterday (said her Mother) her Terms came down in abundance, more than ever she had at once in her life, and still flow; and the continual pain in her Side is abated. Notwithstanding things promised so well, I advised her to take two or three Doses more of the Salt, (as knowing it an Efficacious Medicine both for the Spleen and Womb, and also in Melancholy Cases) and also proscribed her a small Cordial of Cephalick, Splenetic and Cardiack waters, with an Addition of one Dram of your Elixir Proprietatis Volatile. I ordered a Dose of the Salt every other Morning, and the Cordial four or five times a day on the intermitting days. And so by the blessing of God by the use of these only, she was in a short time restored to perfect Health. The Convulsive and Hysterick Passions being occasioned by an Idea of Fear, were the more excited from the defect of the Womb, which only being restored to its right Office by the Salt, and the pain of the Spleen removed, the Idea gradually vanished, for which reasons I do attribute the Cure chief thereunto, believing since, that Sal Solutivum would have performed the Cure alone, if the drops had not been used. But for Diseases of the Womb, I have observed it to be extraordinary Successful, when given about the Change or Full of the Moon, whose influence upon that part is very remarkable.  
I have by me near forty Observations more of Cures (wherein Sal Solutivum hath been used) in different Constitutions, Ferments and Diseases, as well complicate as Simple, but because other Medicines have been used, together with the Salt, I shall forbear to add any of them except you desire it. But as to particulars let this following Account serve for all; it being a Cure performed by it upon my own Body, and for the greatness of it deserves to be put as a Frontispiece before the rest: Take it thus. At first I had a small pain for some hours, with a gentle Inflammation, which increasing after one day broke forth into Pimples, and some Pustles near the Spina Dorsi on the right side, with a gradual and daily boring as with an Augur inwardly from that part, until by the third day it had reached in a straight line, the right side of the Umbilicus: The Superficies of each pained part, I could have covered with a Crown piece. I concluded these to be the Symptoms of an Imposthumous or Ulcerous ferment, to me almost equally dangerous; for considering that my Stomach frequently abounded with a Scorbutic Acidity, I was apprehensive of Danger, in promoting Maturation if A posthumous, and that the Acidities of the Stomach would be as vexatious to an Ulcer, if not in the first place altered. Under this thoughtfulness, I called to mind the Nature of Sal Solutivum, the which altho' I had often administered to others, yet had not taken four Doses thereof myself for divers years: However, because of its gentle Solutive quality, and the rather for that I knew by Experience, that in a Saline Scorbutic habit it hath abated the saltness and sharpness of the Lympha. Therefore (God me so directing) I resolved forthwith, to rely upon the sole use of Sal Solutivum (at which time my Distemper had not exceeded four days) and presently dissolved a Dose thereof in warm Posset-drink being early in the Morning, which wrought very little, nor was my pains lessened, but rather increased for that day.— At Evening therefore I swallowed four Pills of Species Universalis, and the pain for that Night (the Pills having no Action) became almost intolerable. The next Morning I took a larger Dose of the Salt, and felt in its Operation some ease before Noon: The same day at Evening I took another Doses, which after two or three Motions gave me far greater ease than the former, so that I rested pretty well that Night. The next Morning I found more of Soreness and Tenderness than pain. Thus I continued to take the Salt every Morning and Night (except the first Night that I took the Pills) till my whole stock was spent, which was but five Doses, which I made up six by borrowing a Dose of one of my Patients, to whom I had before prescribed some Doses of this Medicine, by which time all my pain was happily and totally removed. First the pain near the Navel, gradually remitted inwardly as it increased, and afterwards that near my Back. For the first three days my Excrements continued Foetid, Crude and Slimy, the fourth day the ordure became laudable enough, nor have I had ever since the least Symtom of pain in those parts.  
One thing worthy of Observation happened in the curing of this Distemper by the Salt, which is, that it also met with another at that time altogether unthought of, which I hope it hath eradicated, I having been free from it ever since: It was a Tetanus or Cramp, an old and frequent Concomitant of the Scurvy; I either had it in my Fingers when writing, in my Throat when yawning, in my Thighs when stretching them down in the Bed; once in almost all the Musculous parts of my Body, occasioned by the taking of a Vomit many years since. When on Horseback by turning myself about, it would presently seize either my Neck, Shoulders or Side, so frequent and troublesome was it to me; although by things inwardly taken, and outwardly applied, it would perhaps remit its rigour for a week or more at a time sometimes, nevertheless it would at other times within that Compass give me fresh Onsets to my exceeding great trouble and pain: But now (blessed be the thrice glorious Name of God) I am freed from it with a Restoration and renewing of my Health.  
One thing more worthy to be observed, which I had almost forgot, is this, I had long had a Carnous Tumur, occasioned at the first as I suppose by a wrench or strain of my Back, this continued sometime after the beginning very painful, after that a small Tubercle like a Wen arising from the Spine, near the upper Vertebrae of the Loins on the left Side. Some Months after this, a stretching pain with a Tumour, from that part reached straightway the length of the Spleen, which gradually Tumifyed to the Magnitude of a Child's Arm, in a Pyramidal or Conical figure, whose lesser end began from that Tubercle in the Back, and the greater part stretching over the Spleen, ended in the Hypoconder of that side. This Tumour was some years since mitigated by the use of Aperitives and Emplastrum Nigrum; Nevertheless it still continued painful when I lay on that side, besides which it would increase and decrease with the Moon: But since my taking the six Doses of Sal Solutivum, no Symptom of that Nature hitherto appears, nor any thing like a Tumour remains. The Cure of this, as also of the Cramp, was indeed unthought on by me then, whose trouble and pain were inconsiderable to that other concontained in the first part of this Account, but (by the blessing of the Almighty) all things wrought together for the benefit of,  
Wiulescomb. Decemb. 17th. 1693. Your Loving Friend to use Fra. Brain.   

Dr. Pack,  
I Have very often been prevented in my design of answering yours; as to the Solutive Salt, I have found it effectual in heat of Urine more than once, I have given it to several Persons, and to Children in a Tertain Fever, and the second Dose has put by the Fit; I seldom gave less than half an Ounce unless to Children under ten years; I cured a young Woman of Quality, in dolore & fluxu Haemorrhoidum, or bleeding Piles, when all Remedies proved ineffectual, with six Doses of it, half an Ounce to each Dose without any return; the same I did for a Gentleman of Quality of this Country, it being an old, and obstinate Disease; I give it to Children for the Worms, and to Persons in continual Fevers before any Signs of Concoction, if they be restringed, or there be any occasion for a Solutive; because it does not disorder the Humours, yet I have known it purge some Persons very much, who have Lax Bowels and are of a weak habit of Body; a young Maid who had a Tumour broke in the intercostal Muscles of her Breast, which I perceived by her complaint, and by the pus that she Coughed up, I cured, by giving her three Doses of these Crystals; they cleansed, and healed the Ulcer, as I do believe; for want of Appetite, I have given it to very many, and it always procured an Appetite to all, in two or three Doses taking; one remarkable Experiment of the Sal Solutivum I had almost forgot, it is this: A Gentleman in Hantshire had a Son about four years of Age, whose Face soon after his Birth was wholly encrusted over with a Scab, which continued notwithstandng all the Physicians endeavours, and old women's Medicines in the Country, till it was by me totally cleansed by Sal Solutivum. I dissolved half an Ounce of the Salt in four Ounces of Spring-water, and ordered the Child's Face to be washed therewith three times a day; and at the same time the Child took the Salt in his Milk from one Dram (by degrees) to two Drams every Morning for three Weeks together, by which means the Scab vanished, and the Child's face became perfectly smooth, which I look upon to be an extraordinary effect. I cannot at present think of more, because I am in haste, but I should be glad to hear what Improvement you, and some other Practitioners have made of it; I have some of it by me, when I want, you shall hear from, Sir,  
Chichester, Novemb. 19th, 1692. Your affectionate Friend, and Servant F. House.   

Sir,  
YOU having acquainted me with a design you had to advance the Reputation of wholesome and Salutiferous Medicines, that they might be brought into more common use, in the stead of those Crude and ill prepared one's too much in Vogue, not only with the meaner sort, upon whom Custom hath prevailed; but also those of a higher form, whose profession obliges them to do better, the health and lives of their Patients depending upon it. I must needs acknowledge, there is great reason for all Physicians who design the good of their Neighbours more than their own private Interest, to study the best Remedies they are capable, and the best methods for the Administration thereof: because, next to that of the Cure of Souls, that of a Physician, is the most careful and worthy Employment under Heaven: And there is as much reason to endeavour a sincere Reformation therein, as in any thing we can set about. Now although this present undertaking of yours cannot be supposed to effect so great a good, yet seeing all prudent Men know that the greatest things in this World, are not attained otherwise than Gradatim, I am not without some hopes that the public knowledge of the use and virtues of your Sal Solutivum, may do some Service that way, for when by repeated Experiments it shall be found, that this is one of the best and safest of purging Medicines hitherto made use of; It may not only serve to stop the Mouths of those who abuse the World, by telling them that Chemical Remedies are dangerous; but may excite the more ingenious to bring into use, those more excellent and Salutiferous Preparations yourself and others, who are Philosophers by Fire can supply them with, for the good of their Patients. I shall therefore give in Evidence some few of those many Testimonies I have to offer in its just defence.  
About Seven years since I had a Patient whose Legs were much swelled and pitted, with other Symptoms which commonly attend that sort of Dropsy called Anasarca. I ordered him to take half an Ounce of your Salt, which purged him very kindly; after that six Drams of the same, with the like Operation; and after that he took a whole Ounce, and by those three Doses he was perfectly cured, and so continued, without any other Medicine.  
A Gentlewoman about fifty years old, being troubled with a general indisposition of Body, a great oppression at her Stomach, with want of Appetite, after other Medicines had proved ineffectual, I ordered her to take of▪ Sal Solutivum every Morning in a draught of water, which accordingly she did, and was cured in a bout ten days.  
I have reason also to commend its use, in those who are troubled with heat and sharpness of Urine; it commonly giving them relief assoon as most Remedies that are used, if it be timely and prudently administered.  
For the Yellow Jaundice, I believe there are few better Remedies; as will appear by the Trial I made of it upon myself. Last Summer I was sorely afflicted with a deep Melancholy, and after some time fell into the Yellow Jaundice: I used those Remedies with which I cured others, but to me they proved ineffectual: But at length I took three Doses of your Sal Solutivum, by which (through the Blessing of God) I was perfectly cured. And perhaps it may not be ungrateful to the Sons of Art, to give a brief Account of the Modus operandi. The first Dose did Vomit and purge from Morning, till about 4 or 5 in the Afternoon, which indeed was an unusual and extraordinary way of Operation, I having never known it do so before, either in myself or others: But when I saw that the matter ejected by Vomit was as yellow as Saffron, I was well pleased with its Operation. I opened a Vein about six that Evening, and the Serum Sanguinis was as yellow as the matter of the Vomit. I adventured notwithstanding in two days time to take the same Dose as before; It did not vomit me at all, but only gave me about four or five Stools: The last I took gave me about three or four Stools: without that usual griping and sickness, which commonly attends ordinary cathartics, and so I was freed from that afflicting Disease: as also that Melancholy which attended me: The Dose I took was about half an Ounce at a time. I thought good to add this, as an Encouragement to those, who understand true Medicine, that they may not think otherwise of it than they ought; for by this it is manifest that your Salt hath variety of ways to exert its Virtue, where it meets with variety of Matter. And although I have for some considerable time, been in the pursuit of some Arcana's in which I have not been wholly frustrate in my Intention; and therefore cannot be supposed fond of any single Remedy, so as to take up with it: Yet I must confess (where purging is necessary) I would, for its safeness and utility, recommend your Salt before any thing I yet know; because it doth good, and no hurt, to whomsoever it hath been Administered, as by reiterated Experiments hath been found,  
From my House in Barbican, Febr. 17th. 1692/3. By your Friend and Servant, W. Russel.   

Worthy Sir,  
I Here present you with what I have remarked (and can bring to Memory) touching your Sal Solutivum in General.  
It hath always been highly approved for that excellent Property beyond all other Purgatives that it leaves the Body Laxative; and when taken in a sufficient quantity worketh certainly, and copiously without Sickness, Gripe or any Discomposure, leaving the Stomach sensibly stronger, etc. not liable to taking of Colds, or any necessity of Confinement as is usual with other Purgatives.  
I have found it of excellent Service in the Iliack Passion, making way through, or rather dissolving the most indurated or stubborn Obstructions of the Intestines, being given in a large Dose, etc.  
For the Itch I have never known any internal means to equal it, being taken daily for a Fortnight together.  
For Uterine Obstructions, I have proved it of very great Service, and sometime speedy to a wonder, effecting the work the very first Dose.  
I have also known it to resolve very large tumors of the Neck (supposed to arise from Cold, but I am well assured, that in one it was Scrofulous) by taking one or two large Doses in the Morning in their Water Gruel, in which it always works best.  
And as a Crown to all other its excellent Virtues, I have proved it of very great use and advantage in Melancholy Madness, viz. where Nature was stubbornly propences, to a solitary Retirement, and Constringency, and would not hearken to the Gifts of any other Remedies, especially Resolutives— all Specificks, as well as Universals, were unavailable; yet by the constant use of this Medicine for eighteen or twenty days, Nature became effectually reclaimed from that Error, and Inordinacy, and brought to a proper and due Freedom (or Enlargement) of Action, which was soon obvious in more sound and regular Issues of the sensitive Faculties, etc. This is all that I can at present recollect of it remarkable, which I entreat you to accept of, with the hearty Respects of,  
Feb. 17th. 1692. Your much obliged, and Faithful Servant, George Deane.   

A short Discourse of Mineral Sulphurs.  
IN my Catalogue of Medicines Printed in the Year 1684. I made mention of some Sulphurs of Minerals and Metals, prepared by me, which were adapted to the curing of radicated and stubborn Diseases; and such as are too Ideal or spiritual to submit, or hearken to Sal Solutivum, which are Medicines so small in Dose, so easy to take, and so effectual in their Operations, that I cannot but wonder no more use hath been made of them. Perhaps one reason may be, that I have not described their Virtues and Uses particularly; but having there said somewhat of their Preparation, Virtues and Doses in general, I had well hoped that it might have met with divers Physicians in this Nation, who so well understood such Medicines, as to have been glad to know where they might have them for their use; or at least such as upon the Credit of the higher Forms of Chemical Medicines, would have given them a fair Trial. I am sure if they had taken the Advice of the noble Helmont, these neat and efficacious Preparations had not been so long neglected, and the more especially because never any in England (that I know of) besides myself ever pretended to make and publish such Mineral and Metallick Sulphurs.  
Helmont's words are these: In his Treatise or Chapter Entitled, In Verbis, Herbis, & Lapidibus Magna est Virtus: Ipsum Morbum totum, ejusque remedia Considero in Archeo alterato vel pacato, adeoque minimo attactu, vibratione, jaculatione, imò radiatione sive illuminatione perfici ac compleri sanationes, non habito causarum occasionalium respectu; idque potentius aspicio in Mineralium remediis Sulphureis, putâ in Sulphur veneris, stibii, ac potissimum in Sulphur Glaurae Augurelli, quae Nympha a●●e nomine proprio caret hactenus, etc. Horter itaque Tyrones, addiscant Sulphura spoliare vi peregrinâ ac virulentâ, sub cujus nimirum Cu●●odiacirc; abditur ignis vitalis, Archeum in scopos desideratos placidissime deducens: junt Videlicet sulphura quadam, quibus Corre●●is atque perfectis tota Morborum Cohors auscul●a●, utp●●e pluralitas in unitatem Archei tanquam pugnanteni pugnum contrahitur. Hoc paci● in ipsa animae sede Combinat●que Duumvicatu, Amentie, Appoplexiae, Caduci, Paralyses, Vertigines▪ Asthmata, Hydropes, Atrophiae, iminanesque des●…tus annihilari vidimus, stupente scilicet ipsa natura. i e.  
I consider the whole Disease itself, and its Remedies to be placed in the Archers altered or appeased, so that Cares are completely performed by the least touching, Vibration or Jaculation, yea only by Irradiation or Illumination, without any regard to their P●ocatartick, or occasional causes; the which I see more especially effected by the Sulphurous Remedies of Minerals, viz. the Sulphurs of Venus, and Antimony, but most powerfully by the Sulphur Glaur of Augu●ellus, which Nymph hath not hitherto been called by a proper Name▪ etc. Therefore I exhort young Artists, that they learn to spoil Mineral Sulphurs of their strange and poisonous Faculty, under the Custody of which is hidden a vital Fire, which pleasantly bringeth the Archaeus unto the desired Ends: yea, there are some Sulphurs, to which (when they are corrected and advanced to their perfection) the whole band of Diseases gives way, because their Plurality is contracted into the Unity of the Archaeus, like a Fist clutched to fight. By this means we have seen Madnesses, Apoplexies, Falling-sickness, Palsies, Vertigoes, Asthmas, Dropsies, Atrophy's, and other very cruel defects to be annihilated in the very Seat of the Soul, and combined Duumvirate, even to the Amazement of Nature herself.  
By which excellent Discourse, that noble Philosopher setteth forth two things: First, that the Sulphurs of Metals and Minerals being corrected by the Artist, and brought to the highest perfection, viz. Fixation do then universally cure all Diseases. Secondly, that they exert this wonderful Virtue after the manner of a shining light, which enlighteneth all dark places and corners, that even so the Mineral Sulphurs, purified corrected and fixed, by their Splendour and Light (which the Almighty hath endowed them with) do irradiate and enlighten the Archaeus, which is darkened and obumbrated by Diseases, injecting new Powers of light into it, and raising it as it were to a new Life. For the Nature of all Metallick and Mineral Sulphurs is like unto that of the Stars; for as the Stars are fire and light, so likewise the Sulphurs, as those do warm and enlighten, so these; as the Nature of those is to vivify and quicken, because they are altogether light and life, a Spring of quickening Virtue, so likewise the Sulphurs, when freed from their Impediments, can do no other, but warm enlighten and vivify. But that the subject of my Discourse may be the better understood, I think it necessary here briefly to declare what I intent by Mineral Sulphurs: know then that I understand a soft Fat, or Oleaginous inflammable Matter created of one Substance, to wit, of the grosser, thick or earthy, or lower Fire, which remained in the Severation of the Chaos, which I take to be the Mother and first Rise of all the Mineral Sulphurs; which are totally of one Nature, Descent and Original, and of one Substance; even as the Stars are created of one and the same Substance, viz. of the more subtle and celestial Fire, which in the moving of the Fiat upon the Chaos mounted upwards; so that the Stars and the Sulphurs agree in the two Properties of warming and enlightening. This Sulphurous substance being by Virtue of the central Fire always upon motion in the Bowels of the Earth, meets with the Metalline or Mineral Juices, generating in their proper Matrices, adheres to them, coagulates them, and continually abides with them, until they have attained to perfection; or else being taken immature out of their Mines, is in part forced from them by the Fire of melting, which together with their mineral Earth, turns into an Opake Glassy Cinder; the other part abiding still with the refined Metal or Mineral, which is that which I call a Metalline or Mineral Sulphur, Denominating it in particular, according to the Metal or Mineral, to which it is joined, as the Sulphur of Venus, Sulphur of Antimony, etc. This Sulphur I take to be the Agent or Fire of Nature▪ by which Metals are in their Mines first coagulated, then gradually and continually cocted and maturated, till by length of time they acquire a Metallick hardness, and Malleability, or else obtain the ultimate perfection of Metals, which is purity and fixity, and then having no further need of this Sulphurous Agnet it is Spontaneously separated from them, as is manifest in the Oars of Gold and Silver (Gold especially) those Metals being sometimes found in pure Bodies, their Agent being totally separated.  
That this Sulphurous Agent in part remains closely combined with the inferior Metals after their smelting from their Oars, appears in the hard Metals as Mars and Venus by their being scorifyed in their Ignition, or by the S●al●s that sail from them, when heat red hot and hammered upon an Anvil; the same thing may be observed in the Flux of the sol: Metals; for if you melt Tin or Lead with such a Fire as will keep it red hot, and when the Metal flows keep it continually stirring▪ in a short time all the Metal will be reduced to a Calx or Ashes. Now if any one shall think, that this Incineration of the Metal is to be attributed only to the power of the Fire, and not to its Sulphur, let him try if he can by any degree of Fire thus reduce Gold and Silver to a Calx, which want this external Sulphur, having laid it aside as a useless Garment. If he shall reply, that as the Bodies of Gold and Silver being perfect, are not altered by the Fire, so neither are they hurt by Sulphur (especially Gold which is not at all diminished by suffering a Cementation with Sulphur) and therefore it is not Sulphur in the inferior Metals, that reduceth them into Scoria or Ashes, but the Action of the Fire which transposeth the parts, or altereth the Texture of those Metals, which are unfixt and imperfect, and therefore want a stability to resist the Power of the Fire. I answer, 'tis true, the perfect Metals are not destroyed by Sulphur, but are again set free from it upon the Test by Saturn, to which it presently adheres, turning it into Scoria, and leaving the Gold or Silver unaltered. But notwithstanding this, there is no Goldsmith but will tell you to his trouble, how eager or brittle Sulphur will make Silver and Gold: And indeed so brittle, that if upon Silver or Gold in Flux, Sulphur be multiplied, the Metal may be beaten to Powder in a Mortar, which is enough for my purpose, viz. to prove the Existence of a Sulphur in the inferior Metals, by its Power of scorifying or incinerating their Bodies. Another way by which these Sulphurs are manifest is by their Flame, when the Metals are in a strong Fire; Copper emits a green Flame, Tin a purple coloured one, etc.  
Some of the ancient Philosophers have called this universal Sulphurous Agent, Daemogorgon, or the God of the Earth, and attributed to it Health, Wealth, Honour, etc. and without doubt they wanted not their Reasons for so doing: but my present purpose being only to show that this Terrestrial Fire, as it adheres to Metals and Minerals affords an excellent Medicine against Diseases, I shall not inquire into its further Qualifications.  
And although those Sulphurs be necessary to the Metals, as a digesting, maturating or ripening Agent, yet I think them not to be of the Essence of the Metal, to which they so closely adhere, but to be highly endowed with Virtues for curing Diseases; having besides their common Power of warming and enlightening, received special Gifts and Dignities from the Astrums of those Metals with which they are con-coagulated: for if the external Sulphurs were Essential to the Metallick form as the Internal are, than they could not be separated from the Metal nor any part of them, but the Metal would be destroyed, but I have divers times seen the contrary, whence I conclude, that they are not Essential to the Metal. For I have sometimes by Calcination with Niter, sometimes by other Salts separated much of the Sulphur from Tin; afterwards I have reduced the Tin again to a Body (although it be somewhat difficult, by reason of the Action of the burning Sulphur) and have found it so far from being destroyed, that it hath been much mended both in the Colour, Hardness, and Sound; in which it hath in some degree emulated Silver. I have also by the help of a certain Menstruum known to me, separated the Sulphur from Copper, but the form of the Copper was not destroyed but meliorated, the Metal being more Ductile and of a greater Splendour than it was before, and if the Menstruum be divers times repeated upon the Calx, till all the external Sulphur be separated, and the Calx then again reduced to a Metal, that Metal will be white, hard, and ductile like Silver, but yet formally distinct from Silver as wanting a due Fixity: Neither can those Sulphurs when thus separated, by any Art be reduced per se into a Metal: Hence I conclude, that they have other Ends and Appointments from the great Creator, than what are limited to the Metals; to wit, to cure the Diseases of humane Bodies. This opinion of mine is confirmed by the excellent Helmont, de Lithiasi, Cap. 8. § 8. speaking of the Sulphur of Venus, where he hath these Words: Come Sulphur istud externum, quale è Cupro trahitur, non ●●t Necess●●●um Metallo perfecto; Cupro au●●●●●lu● Sulphur, sit à Deo inditum, ergo ne●●ss● est ●●●ud Sulphur haber● suos fines ad Necessitates ●●minis ingrati conducentes, pro inf●rmit●●●●…s scil●●et humanis, supra omnem Metallic●e pers●cti●●●s dignitatem.  
Seeing that the external Sulphur (such as is drawn from Copper▪ is not necessary to a perfect Metal; but is joined to the Copper by God, therefore that Sulphur must necessarily have its own Ends, conducing to the necessities of ungrateful Man, to wit, for his Diseases and Infirmities, above all Dignity of the Metallick perfection.  
And this is not only true of the Sulphur of Venus, and the other inferior Metals, that God hath appointed them for Medicine, but of Minerals also, even from common Sulphur, to the Sulphur of the Electrum Minerale immaturum or Lili of Paracelsus, which are the highest and lowest Boundaries of the Dignity of mineral Sulphurs, notwithstanding which those Sulphurs differ greatly among themselves in their Dignity and Power: for the Sulphur of Antimony exceeds the Common Sulphur in light and virtue, as far as Nature in their first Generation hath more highly stated, and nobilitated the former than the latter; the difference being the same as between a raw and a roasted piece of meat for the nourishing of our Bodies. For although the Sulphur of Antimony, be as well Volatile and Combustible as the Common Sulphur, and so no difference between them as to their fixity and maturity; yet such a difference there is in their Virtue, that the Sulphur of Antimony as soon as it is separated from its mercurial Body, being given to the Patient without any further Preparation is of much quicker and powerfuller Operation than the Common Sulphur, although often sublimed; which proceedeth from no other, but its inbred Excellency wherewith it hath been endowed by Nature: so also the Sulphur of Venus hath a greater Virtue than that of Antimony, and that of the Electrum Minerale immaturum hath a Power and Virtue more eminent than any of the rest. For as the Almighty God in the beginning, created all the Stars of one Matter and Substance, i. e. of a subtle Fiery light, and yet made one more glorious, powerful and splendid than another; even so hath he done with the Metallick and mineral Sulphurs, which he hath also created of one Substance, viz. of a gross and earthy thick Fiery light, but yet withal hath framed the one more glorious and more virtuous than the other, attributing to each its particular Glory, which it cannot exceed though prepared and perfected as much as is possible by Art; insomuch that no Sulphur can take more Virtue than the Creator hath endowed it with in its first Formation: and as you see that one Star exceedeth another in Beauty and Splendour, so likewise one Sulphur surpasseth another in its Virtue and Energy of healing.  
Now as you see that among the Stars the most glorious is the Sun, which greatly surpasseth all the rest in Light Virtue, and Splendour, being the Root, Source and heart of the Stars, whence they all did flow, and is as their Father in regard of their Original, and their King in respect of its great Pre-eminence in Splendour: even so the Metals and Minerals also have their King and Father, which surpasseth them all, and therefore is by Paracelsus, and Helmont, called Electrum Minerale immaturum, Metallus Primus, Metallus Masculus, which signifieth the first, or the Father of the Metals; and so of right may be called the King of the mineral Kingdom, in regard that this proceedeth from it: even as a Tree springeth from its Root; for which reason Helmont sets down this heavenly Tincture, in the Front of his Catalogue of the Arcanums of Paracelsus, calling it Essentia Membrorum, because that nothing doth so completely strengthen all the Members as this Royal Tincture, when brought unto its perfection.  
From what hath been said, we may Collect, 1. That Mineral Sulphurs are Subjects endowed by the Almighty, with great Virtue in the curing of Diseases. 2. That this Virtue is environed, and kept from us by a Malignant virulency, so that none of them can be of Medicinal use to us without a due Preparation, their inward Light and Virtue, being guarded by a virulent Poison, like the paradisical Tree of Life by a flaming Sword. 3. That this Exotic virulency being removed, and the Sulphurs perfected, they cure Disseases ad Modum Radii, without being diminished either in Substance or Weight, but pass through the several Digestions of the Body unaltered in their quantity, and unchanged in their Celestial Power and Virtue. 4. That those great Powers and Virtues have their Rise from the invisible heavenly Substance of the Sulphurs, having their Root nearer to the interior heavenly World, than all other visible, tangible and corruptible things, and therefore nearer to the Divine Goodness, as those words of Helmont intimate. Adeoque testantur ejusmodi Arcana, se infinitae bonitati propinqua, etc.  
Now as those prepared Sulphurs act efficiently, ad Modum Luminis in Archeum, striking at the very Ideas of Diseases, so they induce and enable the Archaeus, or Vital Spirit to perform its own Acts, and do Instrumentally warm, digest, concoct, resolve, transpire, dulcify, etc. whence the material cause of Diseases, or diseasy Matter, in which the Idea acts, is gradually altered and separated, by the daily taking of these Sulphurs for a due time; whence the Palsy, Epilepsy, Convulsion, Consumption, Asthma, Dropsy, Leprosy, Gout, and other grievous Diseases may be eradicated. And to this purpose any of the mineral or metalline Sulphurs may be used, provided they are duly prepared, for we are not obliged to seek such a Sulphur in Gold, nor is there a necessity of using that of the other hard Metals, (although they well recompense the Labour and Charge of extracting and preparing) but our merciful Creator hath been very bountiful in giving us great Variety of Subjects, from which this Sulphur may be gotten besides the Metals, as Common Sulphur, Vitriol, Lapis H●matitis, Lapis Calaminaris, Antimony, ●●…nk, Native Cinabar, Magnesia, etc. But with this difference, that the one excels the other in its degree of Virtue as I have showed above; as also that some of them are Speci●●●dly potent in some Diseases, as the Sulphur of Furiol in Epilepsies, that of Antimony in Disease's of the Paps and Womb, as Imposthumations, Ulcers Cancers, etc. in those parts; the Sulphur of Mars in the Dropsy and Green sickness, the Sulphur of Jupiter in the Asthma, and Consumption, that of Venus in the Scrophula and Diabetes, etc.  
Now these Mineral Sulphurs, show forth their Virtues in healing more or less eminently, according to the degree of their Preparation, by which they more or less approach their ultimate perfection: these Degrees of Preparation, I consider under three several Ranks or Classes. The first of these contains the Sulphurs separated from their Bodies, opened and unlocked, Volatile and Inflammable, digested, corrected, and spoilt of their mineral Malignancy, and made safe and effectual Remedies for the curing of Diseases; whose Dose is small, being for those of ripe years, but from two to four Grains, or six as the highest, and pleasant in Operation, working for the most part by gentle breathing Sweats, or insensible Transpiration, never by Vomit, unless where Nature is predisposed to that Evacuation by some indigested or offensive Matter in the Ventricle; but when Nature hath once made her intended Separation, they then cause Vomiting no more. In acute Diseases, as Fevers, Fluxes, Pleurisies, Imposthumations, etc. they are to be taken a Grain or two every three or four hours in a spoonful of a suitable Vehicle, so long till the Disease is overcome, and signs of Recovery appear, and then once or twice a day till perfect Restoration. In Chronic Distempers two Grains in the Morning fasting, and three or four Grains at Night going to Bed, in a Glass of Canary or Sherry; but that which is elicited from the Common Sulphur, being less active than the rest, may be taken from six to twelve Grains.  
This appearance of the Sulphurs is in the form of a subtle ting Powder, and thus prepared; I constantly keep by me the Sulphur of Venus, Mars, and Antimony, and purpose to do the like by those of Vitriol, Zink and native Cinabar, having at divers times heretofore prepared them all by the help of the same Alcahestick Menstruum: I call the Menstruum Alcahestick, because in many things it agrees with the Alcahest of Paracelsus and Helmont, but not in all the Properties which are attributed to that, wherefore I do not believe it to be the same; but in separating the Sulphurs from Minerals and Metals, and correcting their virulency it is equal to that, and to me much better, who am a Possessor of this, but pretend not to that. This I thought necessary to mention in this place, to save myself and others the trouble of curious Questions.  
The second Rank or Order of these Sulphurs, is the Preparation of the first Order, Philosophically dissolved and brought over the Helm, in the form of an highly tinged red Oil or Tincture, which is dissolvable in Wine and other Liquors, but may be most commodiously taken upon the point of a Knife mixed with a little fine Sugar. The Dose is from 10 to 20 Drops. In this form it is more penetrant, and its light much more diffusive than in the former, and therefore much more prevalent in the Cure of Chronic and fixed Diseases, as the Epilepsy, Palsy, Asthma, Ptisick, Dropsy, Gout, Rhumatism, and other pertinacious Diseases of the Genus-Nervosum, and Viscera. N. B. That when the Sulphurs are brought to this form, Basilius calls them Animae Metallorum, and Helmont, their Elementum Ignis. And thus far my Experience hath reached in the Preparation of these Sulphurs; and in this form also I intent (God willing) to prepare them and keep them by me, for the Assistance of such Physicians as are minded to use them. And here I cannot pass by somewhat worthy of Note, which I have lately observed of the red Oil, or Anima of Venus, which is, that a little of it mixed with some other convenient matter, and rubbed upon Rheumatic and other pains hath given present ease, and in two or three days hath quite removed them: and I am in great hopes that it will give ease in the dolorous Gout, to such a Degree that the Patient may constantly persist in the use of such inward Remedies as may remove the cause, of which sort are the Sulphurs of which I am Discoursing. But of this I have not yet had an opportunity to be made certain by Trial.  
The third Order or Degree is, when the red Oil or Anima of the second Degree, is brought to a State of Incombustibility and Fixity, and then it is, and not till then, that they have attained those Superlative Virtues in healing, which Helmont attributes to them; yet the lowest of those Orders is not without its eminent Virtues (compared with ordinary Medicines) in curing Diseases. But the bringing the Sulphurs, or any of them, to this fixed and permanent State, which is their ultimate perfection, I do not pretend to have done, for it requires more time, and perhaps more Art than I am furnished with to handle them, neither do I profess to prepare the Sulphur, Electri Mineralis immaturi sive Metalli Masculi, concerning which Subject, Men that have ventured to name it, I find have greatly differed. But among my Preparations of mineral Sulphurs, I content myself by way of Eminency or Preference, with my Astrum Minerale, whose Dose is from three to six Grains in the first form , and from ten to twenty Drops in the second form. But as that is the most eminent in Virtue of the Sulphurs which I prepare, so it also is the dearest, being to be made but in small quantities with much labour and time: but my Species Universalis, having all the Properties of the mineral Sulphurs, may serve Instar omnium, where they cannot be had; the difference being only in the Dose, which is much larger than that of the Sulphurs, and the Virtue somewhat less potent as being more extended. Also my Tinctura Metallica, being a Solution of the more subtle parts of Metallick Sulphurs in Spirit of Wine, may be used in Diseases of the Nerves, and all others arising from Congelation, instead of the Animae Metallorum of the second form, and is a very pleasant and efficacious Medicine; the Virtues and Uses of which, together with the Species Universalis are described at large, in the Appendix to my Catalogue of Medicines, Printed Anno 1684, to which I refer the Reader; which Directions may also indifferently serve for the use of the mineral Sulphurs, either in the form of Powder or Drops, by observing their Doses above set down, and varying them in proportion with the Species and Tincture. But if it shall please God to grant me Life, and prosper my Labours and Studies; I hope I may hereafter be able to give such an Account of some of the higher Arcana in Medicine, as may be profitable to the Miseries of the Sick, and afford some satisfaction to well-minded Physicians.  
I think it here convenient to advertise that in Chronic Diseases, where the mineral Sulphurs are to be used, if the first passages of the Body be well cleansed by the Sal Solutivum, and the Obstructions of the Viscera and Vessels opened, the Sulphurs will much more readily display their Virtues, and the time of the Cure will be shortened.  
I have spent many years in the search of a safe, pleasant, and effectual Preparation of the vulgar Mercury, that might like the Arcanum Corallinum, or Mercurius Diaphoretcus, of Paracelsus and Helmont, cure the Pox, Cancer, Noli me tangere, etc. and although among the many Trials I have made, I have obtained somewhat which hath done things notable, yet it hath not completely answered the End of my Inquiries. But I have at length found out a mercurial Medicine, which I hope will fully answer my longing Expectation: It is sweet in Taste, and fixed, although not with a complete Fixity so as to abide a very strong Fire, for I have sometime pleased myself with such a fixed Mercury, as would abide the Fire of a Coppel in form of a Powder, but I could observe but little effect it had in Physic. This of which I am now speaking operates very gently, sometimes by Stools, and sometimes by Sweats, and according to the Trials I have yet had of it, doth neither Vomit nor Salivate; as to its particular Virtues, Dose, and manner of administering, if it shall after reiterated Experiments complete my Desires, I shall publish an Account thereof, together with my Balsamum Veneris Anodynum , which is also now under Probation. And in order to this, I make it my request to such ingenious Physicians, as love the Propagation and Improvement of Medicine, that they would give those two Medicines a fair Trial, and make such report thereof to me, as they shall be found to merit; by which means I shall be able to furnish the said Account much sooner and better than my own single Observations will enable me to do. But I shall here say no more of them, lest I fall under the same repfoof with him who Sold the Bear's skin before he had killed the Bear.  
My Arcanum Universal, Pillula Balsamica, Manna Mercurit, etc. being sometimes mentioned in this Book, they who desire to be further informed of the Virtues and Uses of those, and other of my Medicines, may have recourse to a small Physical Treatise, published by me some years since, called Praxis Catholica, where they may find satisfaction; which Book is to be sold by Mr. J. Laurence at the Angel in the Poultry.  
The price of Sal Solutivum is one Shilling the Ounce; of the Sulphurs, in form of Powder, Five Shillings a Dram, in form of Tincture, Ten Shillings an Ounce. The Species Universalis Six Shillings an Ounce. The Tinctura Metallica Five Shillings the Ounce; with an Allowance to Physicians, who use them in quantities.  
I am sorry I had not time to enlarge somewhat more concerning Mineral Sulphurs, but my daily Avocations being many, and the Press now staying, I must here make  
THE END.  
From my House next Door to Gun Ally in Little-Moore Fields, 4th. May. 1693.    

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