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'^(ifb 
 
 u»':lations 
 
 PAMI 
 
 OF 
 
 GEOLOGY TO AGRICULTURE 
 
 IN 
 
 NORTH-EASTERN AMKRICA. 
 
 By JAMES F. W. JOHNSTON, F.Il.S. L. & E. ; 
 
 HONOKAHV MEMUKII OF THK IIOVAL A(;HH ILTl RAT SOCIKTy. 
 
 LONDON. 
 
 M OCC C I. I I. 
 
 • • • . 
 
 • • 1 1 • • 
 
p.m 
 
 i 
 
 FROM Tin: 
 
 JOUUNAI, OF THE HOYAL A(iHlCULT( UAL SOCIKTY OF KNGLAM), 
 
 VOL. XIII., PART I. 
 
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 • ." . •■>•,•. 
 
HKLATION.^ 
 
 OF 
 
 GEOLOGY TO AGIUCULTURK 
 
 mf '-•* 
 
 t 
 
 IN 
 
 NOllTH-EASTLRN AMERICA. 
 
 Therk are two ways in which the relations of j^oolojiy to agri- 
 culture can be viewed and consi(h«red : either broadly and gene- 
 rally, in regard to the agricultural character and capabilities of 
 entire geological formations or groups of rocks ; or locally, in 
 regard to the connexion of the kind of fertility exhibited by this 
 or that limited district or single spot with the kind of rock on 
 which the surface rests. Of these two modes, the first or 
 broadest is the most attractive, the most interesting in its con- 
 clusions, and the most satisfactory in the relations it establishes 
 between agriculture and geology. The second is less simple, 
 clear, and satisfactory. It is far more laborious to follow out 
 also, and requires more knowledge of details in the investigator ; 
 but, at the same time, it leads to results which are directly prac- 
 tical and of immediate application. 
 
 In the present paper I propose to illustrate both, but espe- 
 cially the first, of these metliods, by illustrations drawn from 
 IVort!i-Eastern America. 
 
 A, General Relations of Agricultural Capability to 
 Geological Structure. 
 
 I. On the Atlantic Sea-hoard. — My first illustration I shall 
 take from the Atlantic sea-board of the more western States of 
 the Union. 
 
 If from the coast-line in any of the States west of the river 
 Potomac — from the sea-shore of Virginia, for example, of either 
 of the Carolinas, of Georgia, or of Alabama — a traveller proceeds 
 inland till he reaches the first slopes of the Alleghany Moun- 
 tains, he will pass over four regions which, even to the unprac- 
 
 b2 
 
4 Relations (f Gcolnf/i/ to At/riailturc 
 
 tisnd ryo, aro most clearly distlrK t in tho cliarartcr of tlicir soils 
 and ill the natiiic of tiicir vr;^ctal)l(' productions, wlictlur natural 
 or cultivated. 
 
 I''ir!»t. Rich muddy flats line the shore, interse(ted in some 
 places by creeks and swampy hollows. To these low lands the 
 ncijroes repair at the proj)er season of tiu' year, and j)ut in, tend, 
 or reap the sea-island cotton and the rice, which here yield ^^reat 
 returns. The wiiite masters, or su})erintendents, visit them as 
 rarely as possible, the climate in t\w hot season beimr rife with 
 fevers fatal to the constitution of tlu^ white man. When these 
 swampy flats are still in a state of nature, the swamp willow, the 
 cy])ress, the swamp hickory, the ^reen j)alniett() — the proud 
 badfi^e of North Carolina— the tall maj;nolia, tlu; r(>d maple, and 
 the cotton-wood, form a distinj^uishini; natural vejjetatiijii, rich 
 and beautiful to the eye, but reminding: the practised observer at 
 once of a soil full of natural fruitfuln(>ss and of ui atmospliere 
 j)rolific in siiiverinij a^ue and in depressing- and rapidly wastinu' 
 fever. 
 
 A few miles inland brinjjs him to liifjher pound. The allu- 
 vial plain sjradually rises a few feet above the sea-level, and dry, 
 rich soils support a natural «j,Towth of liickory, oak, beech, niaj;- 
 uolia, walnut and tulip trees, and of Itolly. Tobacco and su<>:ar 
 are the staple marketable crops, which the culti\at()r raises on 
 these drier soils, where generations of exhaustinij culture have 
 not already worn them out. They yield also large crops of 
 Indian com— the main food of the coU)ured labourers — to which 
 the warmth of the climate is fis propitious as the soil. 
 
 Second. Pursuing his journey towards the hills, after twenty 
 miles or thereby — a breadth which varies in different parts of the 
 coast — he reaches the edge of the drier alluvial plain, and ascends 
 a low escarpment of yellowish sand. He now finds hims(>lf in 
 the midst of forests of unmixed natural pine, covering a belt of 
 barren sand g(>nerally unfit for cultivation, and which for hundreds 
 of miles girdles in the lower jdain of rich land he has already 
 crossed. The worthlessness of this pine region for the purposes 
 of the cultivator is illustrated by tiu? history of that ])()rti(m o." 
 the belt which runs througli the State of Georgia. After the 
 settleineni of the boundaiy line; between Georgia and Florid;;, 
 the State Legislature of Georgia passed an Act ordering all the 
 unsold lands of the State, after being surveyed, to he divided by 
 lot anu)ng the resident populati(m. The cost of surveying and 
 other exp(>nses imposed a charge of two cents an acre on these 
 lands, which fell to be paid by tha allottees. But a great many 
 of those who drew the pine barren lots refused to take out their 
 grants, thinking them not worth the two cents an acre they had 
 to pay for them. The State Legislature, therefore, subsequently 
 
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 in Nortli- Eastern Aniertca. 
 
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 ordered that all the laud ot this kind which was unclaimed after a 
 ci'rtain period should i)e sold at four cents an acre to whoever would 
 buy it. Larjje speculations were in conse(pience made hv indi- 
 viduals and companies, chiefly with a view to <'ut down and sell 
 tlie timber. The lumber merchants from the north-eastern States 
 were conspicuous amonj; these speculators ; and I had the fortune 
 to travel for some distance with a j^entleman who, amonf; other 
 information, told me lu* was one of a small party who had boiiijht 
 no less than 19(),()()() acres of tins Georjjian barren in one localitv, 
 with the confident expectation of m;>kin<:^ much money by the 
 sale of the lumber. 
 
 The species of pine with which this barren is covered chansxes 
 as we proceed towards the south and west — ])robably from the 
 <hani>e of climate and exposure. In North Carolina it bears j)rin- 
 cipally tlie Pitch pine (/'///?/ .v r/V/ZrA/), which yields lar<re supplies 
 <d' turpentine. This nnd the timber an> shipjx'd from the p(»rt 
 of Wilminffton in that State. In Geortjjia, ajrain, the j)revailin^ 
 tree is the Yellow pine (^Pinus initis), which yields a harder and 
 more valuable timber tlian the Pitch pine. The chief difTerence, 
 as I was informed, is that the saj) or soft heart-wood in tlie 
 ^ ellow pine is much less in diauu'ter than in the Pitch J)ine, and 
 thus the j)roportion of hard resinous wood in trees of the same 
 si/e is much fji'eater in the former than in the latter. 
 
 Third. Farther inland the traveller ascends another terrace, 
 and at once escapes from the forest into the o])en tr. eless prairie, 
 where, fai* as the eye carries him over the flat, only natural jj^rasses 
 wave in the wind, unless where settlements have been made, and 
 the arts of husbandry have introduced a new vejjetation. Tin; 
 thin soil: of this attractive plain rest upcm a rotten chalk or 
 chalky marl, and, like the soils of our chalk downs, are absorbent 
 of moisture and naturally dry. They produce a sweet herbaj^e, 
 grateful to the cattle, and yield fair crops of wheat while still in 
 r virgin condition. The variety known in the market by the 
 name of Georgian wheat is grown on these chalky j)rairies. 
 They are attractive to the settler because they can be converted 
 into farms without cost. Tliere is no forest to fell. As much 
 land as can be skimmed with the plough may be sown with grain 
 year after year by the first settler, and the aid of a reaping 
 machine makes him almost independent of labour when the time 
 of harvesting comes. It is upon jdainj; like these — so easy to 
 till and so bare of trees — that in published accounts of some of 
 the States we read of single fields of wheat containing from 400 
 to 700 acres of waving grain,* and from which a crop of ten or 
 
 * I have never myself seen any of these large fields, probably because I was 
 never upon any of these prairies where they were to be seen. I was told by a 
 
Rclotioiis of GeoliKiu to ^If/ricii/fnir 
 
 twi'Uv. huslu'ls an acre leaves a profit upon tli(> lal)(>ur and capital 
 expended. lUit tin' thin hlaek vir«;in soils wliieli e()ver tliein 
 soon deteriorate. Deeper plou<;liinj; does not permanently restore 
 tlieni, and the knowinj; eultivator now sells his inijn'ond lot to a 
 n<?w corner, and Ix-takes hiujsell" to another virgin tract which the 
 tide ol eniij;rant population is <:nlv heirinninj; to reach. 
 
 Fourth. C'rossin}jj th<' prairie or chalk down, he conies ajrain to 
 a sudden rise in the country, over which cheerful forests o[ hroiul- 
 leavcd trees extend — of oaks, hickory, (Sec., .and a scattered ad- 
 mixture of pines. He is now on tlie older rocky formations, of 
 which the first slopes of the All(>«;hanies consist. Mica-slate, 
 gneiss, and j^ranite, liere mingle their dehris to form a character- 
 istic red, clayey, but iViahle soil, which (rund)les readily, and, 
 from the nature of the diniati', admits of a husbandry aj)proach- 
 inir more to that of our I'aiLilish farmers, 
 
 'l^he marked features ol soil and ve<;etation which our traveller 
 thus perceives entirely coincide with as distinctly marked ^eolo- 
 ^ical features. This is seen in the following; sciction of the coast- 
 line in ((uestion, from the sea to the mountains. The letterpress 
 below the section indicivtes the <^eolo_sj^ical formations — that placed 
 above it indicates the natural vegetation and the crops whicli 
 grow best U])on each. 
 
 No. I. 
 
 Dry chiilk downs. 
 Trt'eless prairies. 
 
 Hroiul-Ieaveil lorcals. 
 General hiusliamlrv. 
 
 Kice Siijj.ir 
 
 anil ami 
 
 cotton. lo!)ario. 
 
 I'ini! forests. 
 Sauilv liiirrens. 
 
 ??s*-,Ji!^ 
 
 ^la. Post tcrliiiry, 
 anil alluvial. 
 
 Tfrti irv saniis. 
 
 ."^I'Konilary 
 chalk marls. 
 
 l'rim:iry mclamorpliic 
 lOL'k anil granite. 
 
 In this section a dose general relation is seen between the 
 ihanges in geological and agricultural character which appear 
 on the several successive terraces ov flats of land across which 
 the traveller proceeds on his way from the sluu'es of the Atlantic; 
 to the slo])es of the Alleghany Mountains. Where the most 
 recent t)r alluvial loams and rich clays end, there the tobacco, 
 Indian corn, and even wheat culture, for the time, ends also. 
 The tertiary sands belong to a more ancient epoch, and to them 
 are limiteil, by a stri( tly defined boundary on each side, the dark 
 pine forests which are so striking a feature of the country. On 
 the older clialk, again, the treeless prairie ami flinty wheat country 
 is as distinctly limited by the formations on either hand; and 
 
 Mioliijrun f'aninr who invited uic to visit liiiii, that he liad 400 acres under wheat, 
 and reapod with a iiiachiiK.. Tlie averapi' produce of the whole of this State of 
 Miehifian is only lo,' htishels of wheat per acre. 
 
 11 
 
 X' 
 
in North- I'Myli'in Anwvica. 
 
 " 
 
 beyond tills, ;i<.r!iiii, the c !ian!ro<l forostc smd ciiltiviit'Kiu «)1" tlio 
 lii;;licr (ountiy aic (Ictcrinincil l)y tlic chaii-ft' \\\ nature and in 
 a;j:e wlii<li tin; rocks ol tuis rey:ion exliibit. 
 
 It is only necessary to ol)s<:rve furtlier tliat the widtii of these 
 several Ixlts (»t land vr.ries in difrenr.t parts of the lony; Atlantic 
 coast-line. The ailnvial hcnder is hroadest in the southern 
 States and alonj; the («ulf of Mexico, the j)ine helt prohahly in 
 (ieorjfia, and the chalk marl in Alabama and AIississi])j)i. The 
 latter also — the chalk — is by no ni'ans continuous. It forms 
 only a narrow belt iii New Jersey and Maryland — almost dis- 
 a|)|)(!ars in tlu; Carolinas — is known only in patches in Cieorjjfia, 
 hut becomes ajjain broad and continuo\is in Alabama. Still, 
 wherever, al on ji^ this jjreat distance, any of these formations (»ccur, 
 and of whatever extent they may at that place be, they always 
 exliil)it the same <;cneral charatters of soil, of natural vegetation, 
 and of ajifricultural capability, in so far as the climate of the 
 place permits. 
 
 It is, indeed, very remarkable how uniform in tliis respect the 
 same jjeoloji^ical formation is sometimes found to be, not only in 
 tlie same country, but in difl'erent countries at <;reat distances from 
 each other. I have already alluded, for examj)le, to the natural 
 dryness of this chalk belt on the Atlantic border of the United 
 States. The scarcity of water exj)erlenced by thos'" '^'•' ref^ ^e upon 
 it is often frreat. Every (me knows tliat the s' e of our 
 
 own chalk reifion in Enjjland — that in very ' wells 
 
 i.re sunk throuffh it with the view of reaching Mat in 
 
 L»mdon jrreat dept'is are fione to, and at a vast 3Uffh 
 
 the Lond<m clay and the chalk, before water can bv In 
 
 the Paris basin the chalk is equally dry, and there aix. y few 
 who have not read of the remarkal)ly deep well at Grenell(. in 
 the nei<i^hbourhood of Paris, which, like the less profound London 
 Wt^lls, has been sunk to the sands below the chalk, and with 
 similar success. 
 
 So, in Alabama, on this formation water Is (mly to be obtained 
 by sinkini^ throujfh the chalk. Three years ajjo there were 
 already about 500 wells in that State, sunk to a depth of from 
 400 to 600 f<;et, there bein<;^ one generally upon each plantation. 
 And t'ms, while the climate there, as elsewhere, determines the 
 general character of the vegetable produi e, what kind of plants 
 under the meteorological conditions can arrive at perfection, and 
 also the race of men by whom that labour can be best performed,* 
 yet the geological structure determines whether or not any crops 
 shall be able to grow at all, and, of the kind of plants suitable to 
 the climate, which can be profitably cultivated upon its actual 
 
 * Cotton is the staple market crop of Alabama. The State contains hy the last 
 census (IS.'i'j; a population of '/7S),()00, i :" whom 344,000 are slaves. 
 
M Rdations of Grolof/i/ to Af/iintltitir 
 
 surface. Hut in the present ciise the reader will per(ei\c tli.il 
 the ^eolojiieal structure (let<Mniiues more. In sucli a climate, and 
 with a soil so naturally arid, abundant water is indlspensahh- ; 
 but this can (mly he ohtaine<l by deep borinir pi-rformed at a 
 jijrreat exp<'nie. The «>;eolofj;ical conditions, therefore, confine the 
 possibility of culti\ation to men of larj;*' means, Mnd, in present 
 circumstances at least, necessarily ixdude all petty farniinj? and 
 the subdivision of the land into small holdintJ;s. They dc'tennine, 
 in other W(mls, the social ccmdition of the people, 'riiis sinj,de 
 illustration is enoujjh of itself to satisfy any impr.rtlal persori of 
 the close fjeneral relation which exists between the fjeolofrkcal 
 eharacter and the agricultural capability of a country, and of the 
 broad jreneral deductions in '•ejjard to its possible future pros- 
 
 n(>rity in a rural sense — which may be drawn Irom a knowledjje 
 
 of its geolojiy. I believe it is partly under the influence of this 
 conviction "that the Senate and C<m}xress of the^ United Statea 
 hav<; so often and so cordially voted lar^'e -ins of money f<n' tin' 
 purpose of investijrating and mappinj; the main jjetjlojiical fea- 
 tures of the new States and territories which fr*>m time to tinu' 
 have been admitted into the Union. 
 
 II. Reldtiotisof Geohr/mit dmdure to Af/ric7iltural capahilitu in 
 IVestern New York. — I take my second illustration from Western 
 New York, partly because this has hm^' been celebrated as a rich 
 wheat-firowinjj distvi<t ; partly because the relaticms we are stu- 
 dying are here really very interesting; and paitly because tl<is 
 locality will give me the opportunity of showing, by a more de- 
 tailed example, the intimate c(mnexion which subsists between 
 the ec(momical value of a regicm in the agricultural, and the 
 compositior of its rocks in a geological, sense. 
 
 The section of the country along the Atlantic border, which 
 formed the subject of the preceding illustration, terminattnl 
 inland with the primary rocks of which the first slopes of the 
 Alleghanies consist, and which, by their (rumbling, form red 
 friable soils, clothed with mixed, chiefly broad-leaved, trees. 
 
 The primary stratified rocks are then; g(>nerally tilted up, 
 squeezed togetlier, as it were, and standing on edge. They thus 
 occupy but little space, s<r that a mixed soil of a commcm cha- 
 racter, derived from their intermingled fragments, <jvers])reacis 
 
 them all. 
 
 But Western New York presents as witii a most favourable 
 opportunity of studying the special agricultural influence, in 
 detail, of each individual mendier of whole groups of rocks. That 
 subdivision (>f the primary rocks, distinguish<>d among l^^urojx'an 
 geologists by the name of Siluritai, is there flattened and spread 
 out over a large extent of lountry ; and the several beds of this 
 
 T 
 
in North- Eattcrii Aincricn. 
 
 9 
 
 ' 
 
 T 
 
 sulHlivision — partiiillv «)V(Mi;»|H)iii.; ami risiiiu' aliovc v\w\\ otiu r 
 ill a s«ui\'ssi<m of small Imt distiiK t tcnaccs <.i y;r(>at<'r «»r less 
 lucadtli — plainlv cxhihit to tli'- cNc of the oUscrvcr the cliriiiiial 
 ihaiactcrs of carli, *\\c kind of soil which in < ruml>liii;j: it na- 
 ttnailv prodiuvs, and the spcrial <A\rii it has on the aj^iicultural 
 capahilitv of the sinfai c that rfsts upon it. 
 
 The louiitrv t ) which i here refer «'\teii»ls aloiv,' the soiithev'i 
 shores of Lake Ontario, from beyond IJiitlalct, at the foot of Lake 
 I'^rie, on the west, to Oswejro, near t!u' fool of Lake Ontario, on 
 the east. Its len<it!i is ai)out 180 miles, and its mean hreadtli 
 from Liike Ontario towai'ds the south about ))(* miles. 'I'he 
 distriit rises as we proceed southward from the Lake, sometimes 
 bv sudden starts over vocky escarpments, but ^renerallv .n a 
 o-radual manner, till it attains a lu iirht of ()<M^ or TOO f.rt above 
 tie Ontario, ]''arther south, towards the Peimsylvanian border, 
 the hijih land attains an elevation 'ti some places of nearly 2000 
 fe. •:, The woodcut (p. 8) exhibits an outlme of its geographical 
 position and geological structun 
 
 This outline map shows the relative positicm of the Lakes I'^rie 
 and Ontario, the discliargo of the waters of the former into th'- 
 latter by the Niagara river, and the drainage of the high scmther . 
 fountry towards the borders of Pennsylvania by the Oeiiessee 
 ri- 'r, which falls into Lake Ontario below Rocht-stev. The 
 lines which run from east to west indi(at(! the boundaries of the 
 several rocky formations of which the country consists ; all, 
 except that marked 8 and D, belonging i,; what is called in 
 I'Airope the Silurian system of rocks. The area or strip of country 
 lovered by each formation is represented by the numbers 1, 2, 
 8, \,e., in the ascending (nder of their suijcrposition. They lorm, 
 as I have above stated, a succession of strips, belts, or tinraces, 
 of greater or less breadth, from the lowest (No. 1), on the biuiks 
 of the Lake, to the highest (No. U), which covers the interior of 
 the country. The nanu^s given by the New York geologists to 
 these several rocks arc as follows : — 
 
 No. L The Medina sandstone; No. 2. The Clinton group; 
 No. 3. The Niagara group ; No. 4. 'IMie Onondaga salt-group ; 
 Nos. 5 and 6. The lieiderberg group ; No. 7. The Hamilton 
 group ; Nos. 8 and 9. The Portage and Chemung groups. 
 
 The broadest belts, as will be seen from the map, rest upon 
 the Medina sandstone and on the Onondaga salt-groups. Of 
 course I do not compare any of these belts in area with the 
 extended surface occupied by Nos. 8 and 9, which bound on the 
 south the low and fertile region to which my observations will 
 chiefly apply. The mineralogical character of these several 
 groups of rocks, viewed hi connexion with the nature of the soils 
 
 M 3 
 
10 
 
 Relations of Geoloiju to Agrmdture 
 
 T 
 
 
in North- Eastern America. 
 
 11 
 
 f 
 
 tlioy form, alTord the illustration to which I am desirous of 
 drawinj? the attention of my readers. 
 
 No. I, the Medina Sandstone, consists of layers of brownish 
 or red sandstone, intermixed with layers of reddish shaly or 
 sliivery clay. These yield the red soils of the low flat belt which 
 skirts the southern shore of Lake Ontario. At its eastern ex- 
 tremity this rock contains few pavtin}i;s of clay, and i)r()d:ues 
 tiierefore poor sandy soils of comparatively little value. Over 
 much of these poor sands natural pine forests still extend, as the 
 traveller sees when he steams along the Lake from Rochester ti> 
 Oswejro. But, as is occasionally the case with other sandstones, 
 the partinj^s of clay increase in number and thickness towards 
 the west, producing first sandy loams, and finally rich clay loams 
 well adapted to the growth of wheat. Hence this same forma- 
 tion, which at the east end of the Lake affords only poor himgry 
 soils, yields between the mouths of theGenessee and the Niagara 
 rivers some of the richest wheat-lands in the State. 
 
 No. '2, the Clinton Group, forms a very narrow zcme, which is 
 nearly cimccaled by the debris of the rocks svhich lie immedi- 
 ately ai)ove and below it. This group amsists of green and blue 
 sliaies with limest<me intermingled, altogether from (50 to 80 feet 
 in thickness. They are soft and thin, and have therefore been 
 washed away by the ancient sea nearly to the edge of the hard 
 thick limestone^ of No. 3 which lies above it. The admixture ol 
 the fragments of this Clinton formation has produced a surface ot 
 excellent wheat-soil. It forms a very narrow terrace of caUare()us 
 clay, sloping with a gentle indinaticm towards the lake. The 
 dotted line NS in the map represents the line of the cross-section 
 (No. HI.) given in page 18. A glance at t!ie map will show 
 that along the line of this sedion tlie zone of theClintcm group is 
 broader Than it is anywhere towards the west, readies a breadth 
 in fact about equal to that of the .Medina sandstone l)elow, or oi 
 the Niagara limestone above it. It is necessary to notice this 
 fact, otherwise this cross settion would appear to be inconsistent 
 with tlie general indications of the map, in whicli the (liiitoii 
 group forms usually a very narrow strip indecMl. 
 
 \o. :>, the Nia;iara Group, consists of an enormous thickness 
 of limestone above, resting upon a great thickness of dark blue 
 irund)ling shales below. At Niagara, where the rivei' h.lls, the 
 limestone^ has a tiiickness of 130, and the shale of about 80 feet. 
 The shale alone, where it comes to day, produces stiff bhu; clays, 
 which, from the sloping nature of the surfac>e, are gcnu-raily dry 
 and susceptible of culture. Like many of our own still un- 
 tom-hed clays at home, however, they are to l)e lierealter rcn- 
 dercnl greatly nunc valuable by the introducticui ()f our liritish 
 system'^of thorough drainage. This mode of improvement is 
 
12 
 
 Rvhttiuna of Geologi/ to A(iriniltnro 
 
 Ijejjiiinin^- now to nttnict a cons'ulcraljlc dciivoe of attention amonii 
 iiitvlli-icnt and wcU-cducatcMl I'aimers in the older States ol' the 
 Uni(«C !>n<l nowhere more, 1 believe, than anumj): those wlio cul- 
 tivate this naturally favoured rej^ion of Western New \ork. 
 VVIiere the debris of this Niajjara shale is mixed up with tliose 
 of t'.ie Medina sandstone and Clinton groups— which is frequently 
 tlie case aloni^ the lines of junttion— the admixtures are said to 
 produce soils of " unequalled fertility." This fact illustrates the 
 observation of all a-jricultural jr(.ol()<rists in ever> country, that 
 the economical value of the land almost invariably increases 
 aloni? the line of junction of two ffeolojjical formaticms ; provided 
 that'^coverinss of far-transported drift do not prevent the sub- 
 jacent rocks from exercising their legitimate influence upon the 
 nature of the soils that cover them. The overlying Niagara 
 limestone, where it is uncovered with drift, has crumbled down 
 into thin open soils which produce wheat, but are better adapted 
 for Indian corn, or for the turnip husbandry, should this region 
 ever become familiarized to it. The surface of the limestone, 
 however, is generally overspread with fragments of the underlying 
 more crumbling shale which have been drifted over it, and thus 
 the belt No. 3 is, for the most part, overspread with deeper and 
 richer soils than would have resulted from the decay oi the 
 lime-ro( k akme. 
 
 It will be seen in the cross-section { No. 111.) given in poge 
 i^, that the rise from No. 2 to No. 3 is by a sudden step or 
 cliff. Ihis cliff is comparatively low towards the east, where the 
 section is taken, but increases in height towards the west. This 
 is owing to the circumstance that the bed of limestone increases 
 in thickness in proceeding from the east tt)wards the west. In 
 Wayne county, where ttie section is taken, it is only SO <)r 40 feet 
 thick; while' on the Niagara river, above the rapids, it is 164 
 feet, and it still increases in thickness as we proceed farther 
 towards the west, along the northern shores of Lake Erie. This 
 is owing, most probably, to the increasing d(>ptli in that direction 
 of tlie ancient sea in which this limestone was deposited. 
 
 This increasing thickness exercises an influence upon the 
 agricultural chariuter of the country occupied by the Niagara 
 group in its western range, but its most sensible and striking 
 effect in Western New ^'ork is on the physical features of the 
 district. The; outcrop of the limestone forms a long cliff or es- 
 carpment, which skirts the whole southern edge of the lake, and 
 presents to the traveller most beautiful and extensive views of 
 the flat (ountiv bdow and far over the waters of the lak(? 
 Iieyond. iMfMii'the Cicmessee to the Niagara rivers this cliff is a 
 charac teristic featine of the fouiitrv. and is iamiliarlv known by 
 the name of the -^ mountain-ridge." Over this escarpment of 
 
in Noith- Eastern Amorica. 
 
 13 
 
 tlip limestone the Genessee and the Niaijarn, amons otlier rivers, 
 preiipitate themselves, producing those magnificent tails which 
 have given celebrity to Niagara, and an unlimited water-power 
 and most rapid rise to the city of Rochester. 
 
 The following section will give an idea of the appearance ol 
 the mountain-ridge in the steepest and boldest parts of its course, 
 and will sliow how it overlooks the flat plain of the Medina sand- 
 stone and the waters of Lake Ontario. 
 
 No. II. 
 
 In this section the dotted mass above and below No. I is liie 
 Medina sandstone, No. 2 is the Niagara shale, and No. 3 the 
 overlying thick-bedded limestone. It is taken behind the town 
 of Lewiston, at the mouth of the Niagara river, on what is called 
 the American side. The view which the spectator enjoys from 
 the top of the escarpment at this spot is worth going a long way 
 to see. Sheer down .>ne looks over the scattered town of Lewis- 
 ton, upon the broad flat forest-lands stretching many miles back 
 from the lake, and eastward along its shores farther than tlie 
 eye can reach. Here and there only, at the time of my visit, in 
 all this distance a clearing appeared"^ upon this often marshy flat. 
 Right in front lay the endless lake and its occasicmally bolder 
 shores beyond, Avith now and then a straggling sail or a distant 
 steamer's smoke, all mellowed and blended by a four o'tlock sun. 
 I was much struck both with the extent and with the unsubdued 
 wildness of tlie prospect, when I unexpectedly reached the cliff 
 on my way from the falls ; and I could not help thinking how 
 some two centuries hence, when all this low plain before me 
 shall have been cleared, drained, and cultivated— when smiling 
 villages and cheerful homesteads, and scattered flocks and herds 
 overspread its surface, and the blue smoke may be seen dying 
 away from many chimneys as the Saljbath bell draws the gather- 
 ing people towards the frequent house of worship— how many in 
 those days for broad pictures of natural beauty, intense with 
 countless little episodes of still life, will yet frequent this moun- 
 tain ridge when the noise of the neighljouring cataract has 
 wearied them, and softer scenes are wished for to calm and com- 
 pose their fevered spirits. 
 
 No. 4, ^^e Onondaga Salt Group, derives its name from the 
 brine-springs which issue from it in >arIoiic parts of this western 
 
14 
 
 R('/iili(»is of Gvohxiji fi> Aijricnltiirc 
 
 iof2:i()n 
 
 Salt Is larji^cly manutacturcd tVom the \vat<M ot these 
 sprinifs, ospociallv at Syracuse, where the annual produce amounts 
 to 12f),()()() tons,' al)out a fourth of the whole annual (<ni- 
 sumption of the United States. 
 
 Tiiis fijroup of rocks consists in desccndino; order of, — 
 
 a. Green calcareous shales and shaly limestone, ridi in 
 
 magnesia. 
 
 b. Calcareous shales and impure limestones, containing de- 
 
 posits of gypsum 
 
 c. Green marls and shales, and s!,aly limestones. 
 
 d. Green marls, with Ijands of red marls. 
 
 The formation as a whole is crumbling, friable, and rich in 
 calcareous matter. The soils it produces are consequently rich, 
 free, and easily worked. It has an average thickness of about 
 1200 feet, and forms a l)elt of generally level but undulating 
 land, with a gentle inclination towards tlie lake. It runs east for 
 upwards of 100 miles beyond the line of section N S in the ma}), 
 and westward across the Niagara riv(>r, round Lake Ontario, nnd 
 far into Western Canada. An inspection of the map will sl;ow 
 tliat this belt occupies a large proportion of the whole area of the 
 district. Its average breadth is 10 or 12 miles, the latter being 
 its breadth on the Niagara river. In the line of section N S, its 
 breadth suddenly expands to between 20 and 30 miles. Towards 
 the east it narrows off, and disappears as we approach Sclmectady 
 and the Hudson river, while in Western Canada it expands to a 
 maximum breadth of about 80 miles.* In this western region, 
 therefore, the Onondaga salt group forms a large area of rich 
 land, profitable in Indian corn, but especially in av heat. 
 
 During a stay of a few days at Syracuse, I visited the farm of 
 the Hon.'^Mr. Geddes, a member of the State senate, and, under 
 his guidance, had the satisfaction of surveying a considerable 
 extent of this formation, so very interesting in its geological, 
 agricultural, and economical relations. This gentleman is the 
 owner of 300 acres of the best quality of land which occurs on this 
 formation, and, like nearly all the owners in this country, lives 
 upon and farms his land himself. The soil I found to be a light- 
 coloured calcareous clay, which crumbles readily and never bakes. 
 It is generally shallow, and rests on one of the green shaly 
 rocks above mentioned. This shale crumbles readily in the air, 
 and, by exposure, becomes paler in colour, forming the light- 
 coloured soil of which the farm consists. 
 
 This neighbourhood, in its general aspect, appeared to me 
 1 ' 
 
 ike a part of Old England than of a newly cleared or 
 country. Of Mr. Geddes's 300 acres, 270 were in arable 
 
 more 
 settled 
 
 * See some additional remarks on this point in tiio concluding paragraphs of the 
 present paper. 
 
 ^<ilk 
 
ill North- Eastern America. 
 
 15 
 
 ^^% 
 
 culture, and comfortable houses and jjood buildings of otlier kinds 
 w.re seen on most of tiie farms 1 passed. The size of farms is 
 here generally from 100 to 300 acres, and these, with the build- 
 ings upon them, usually sell at 50 to 60 dollars an acre. At this 
 price Mr. Geddes expressed to nie his opinion that it was the 
 cheapest land in the States ^or tliose icho have capital to buy it. 
 By those, of course, whose whole wealth consists in their bodily 
 strength and industrious habits, the wilderness land of the more 
 western regions is alone attamable, 
 
 1 give, as an illustration of the capability of this very best 
 land, the following statement of the produce per acre, as fur- 
 nished to me by Mr. Geddes. This soil is of a very useful kind, 
 producing all sorts of grain crops, though not of equal (juality. 
 The yield per acre is> — 
 
 Wheat . . ]8to 35 bushels, of 60 lbs. 
 
 Ikrley . . "20 to 55 „ 48 lbs. 
 
 Oats . . . 40 to 100 „ 32 lbs. 
 
 Indian corn . . 50 to 80 „ 56 to (JO lbs. 
 
 Potatoes . . 100 to 300 bushels. 
 
 It is least adapted, he said, to the growth of potatoes— which 
 is more probably owing to the climate and the great summer 
 heats than to any defect in the soi'. Turnips are as yet but 
 little grown, and the feeding of sto>k is not much attended to.* 
 An average weight of 32 lbs. a busli '1 does not indicate a climate 
 well suited to the oat crop. As a general rule indeed the climate 
 which ripens Indian corn well rarely producer a crop of heavy 
 
 oats. 
 
 The fact that this land has been ploughed for fifty successive 
 years without receiving any manure will give the reader an idea 
 "of its innate richness. I walked with Mr. Geddes over two 
 fields which have never been manured during the fifty years 
 which have elapsed since his father first cleared them, and he 
 thinks the land as good as ever it was. It yields from 50 to 60 
 bushels of Indian corn, and in 1848 it gave 30 bushels an acre 
 of wheat. The soil consists, for the most part, of crumbling 
 fragments of the green shale. When the older land appears to 
 become exhausted the plough is put in a little deeper, so as to 
 bring up a little of the crumbling rock (green shale). It is then 
 said to produce wheat as abundantly as before. 
 
 The most sceptical as to the influence of geological structure 
 upon agricultural capability can scarcely doubt after such an 
 illustration as this. 
 
 The rotation on this farm was— 1. Indian corn after lea, with 
 
 * When the necessity for manure becomes more urgent to the land, the feeding 
 of stock will no doubt take in American the same place it occupies m English 
 agriculture. 
 
11) 
 
 Relations of Geoloyij to Ayrkulture 
 
 manure, il" any is applied; 2. Oats; 3. Parley or Pease; 
 4. Winter Wheat with seeds in sprinjr ; 5. Grass, cut twice for 
 liay ; (>. (irass pastured with sheep and milch cows. 
 
 li" the land be foul, it is now summer fallowed and sown with 
 wheat, followed by seeds as before, after which Indian (orn comes 
 in auain. If it is not foul, the rotati(m commences with Indian 
 corn innnediately after the two years' fjrass. 
 
 On soils derived from this extraordinary green shale, such 
 severe— what we should call scourging treatmeiit — may be con- 
 tinued a great many years with apparent impunity ; although it 
 is seen even here to tell very soon on land of inferior quality. 
 But in this naturally rich land also its effects become visible 
 at last. Hence it is that this celebrated wheat region of eastern 
 New Yi)rk AS a whole is gradually approaching the exhausted 
 condition to which the more easternly wheat growing, naturally 
 pDorer districts, had earlier arrived. Of course where the subsoil 
 or subjacent rock is so full of natural fertility as this green shale 
 is sai(i to be, the exhaustion can only be superficial, and fertility 
 may again be restored to tlie surface soil. But to do this will 
 require both a more skilful and a more expensive system of 
 husbandry — conditions which manifestly imply that crops can 
 never again be raised so easily or so cheaply as during the early 
 and virgin freshness of this deservedly lauded district. 
 
 Monroe county is in the centre of this district. Tiie Genessee 
 river runs through it, the city of Rochester stands in it, it embraces 
 a large portion of the richest land in the Genessee valley and on 
 the Onimdaga salt group, and the corn averages of this county, 
 as published by the New York State Society, are higher than 
 those of any other county in the State. It may be supposed 
 therefore at the present moment to be the most fertile. Now the 
 averages per acre of Monroe '^ounty are as follows : — 
 
 Wheat 
 Barley 
 Oats 
 
 19^ bushels 
 
 19 
 32 
 
 J) 
 
 Indian corn 
 Potatoes 
 
 30 bushels. 
 110 „ 
 
 For a highly and deservedly lauded, fertile, wl'.eat-growing 
 district, the pride of the State of New York, the happy home to 
 which the longing eyes of British and Irish agriculturists have 
 long been directed, these are but low averages. Either the land 
 is net so good as it has been called, or it is, and has been, badly 
 treated. The general treatment has certainly been bad, but as 
 surely large portions of the land are naturally very good, and may 
 still be made very productive. But if they can, it must be, as 
 with us at home, by the application of more skill and by a more 
 prudent husbanding of the natural riches which the soil contains. 
 The trouble of preparing, collecting, and applying manures must 
 not henceforth ))e thought too great for a free and independent 
 
 I 
 
i 
 
 in Nurth-Eastern America. 
 
 17 
 
 ^.•i 
 
 North American farmer. This is well understood now by tiic 
 leading? promoters of ajfrieultural improvement both in the United 
 States and in the British Colonies. But in this district of 
 Western New York they feel the influence upon local prices of 
 the jijreat importations of wheat and flour from the new States 
 west of Lake Erie. The tide of this commerce in grain has n()W 
 turned in direction. Instead of sending? westward from Buffalo its 
 thousands of barrels of flour, as it did in former years, New York 
 now yearly receives from the west, throuf^h the same port, its 
 hundreds of thousands of casks of flour and of ])ushels of wheat. 
 So that, besides the imi)rovements which the advance of know- 
 ledfje suggests, self-interest is now urging tlie farmer of New 
 York to the adoption of wiser and better modes of culture. 
 " VViiat," said the President of the Oswego Agricultural Society, 
 in his address at the close of 1850—" What, I ask, is to meet 
 this competition of the west, but greater skill and care in the 
 mode of agriculture?" This is precisely the language which 
 speakers and writers in our own country have of late years been 
 almost daily addressing to British farmers.* 
 
 Nos. 5 and G. The Ilelderherg Limestones and Sandstones (5), rise 
 immediately behind the Onondaga salt grouj). Where 1 drove 
 along the edge of this limestone with Mr. Gcddes it formed a 
 high escarpment, from which tiie view of the flat lands below, 
 and of the country towards the lake, was beautiful and extensive. 
 Though far from what it was half a century ago, this great stretch 
 of undulating i)lain still seemed strange and savage to an eye 
 accustomed to the finislied and artificially picturesque appearance 
 of an English landscape. Swamps and lakes, and rude natural 
 forests, with intervening tracts of land under waving corn, remind 
 the spectator how much nature yet rules, how long human in- 
 dustry must patiently labour still before the asperities of a new 
 country can be rubbed off, how many generations of the enter- 
 prising men who now possess it must still toil and adorn this 
 fine land before it will smile at their feet like that which their fore- 
 fathers left. 
 
 At this limestone the natural richness of the country as a 
 wheat region begins to fall off. The soil upon the limestone 
 itself, and upon its subordinate sandstone, is often thin, resting on 
 a hard rock, but, where it happens to be deep, it is full of frag- 
 ments of limestone, and is of excellent wheat-growing quality. 
 
 The Marcelbis Shale (6), which overlies the Helderberg lime- 
 stone, is thin, varying from a few feet in thickness to a maximum 
 
 * Those -who are interested in the wheat-producing capabilities of the United 
 States generally, and in their future relations to our own wheat markets, will find 
 the subject discussed at some length in the 13th aud 25th chapters of the author's 
 ' Notes oil North America.' 
 
18 
 
 Relations of Geolo<nj to Atjrkulture 
 
 of (K) or 80 foot. Its offocts on the surface of the distriot thore- 
 fore are chieily to improve the soils of tlio limestone at the points 
 of junction, and to form occasional narrow sirij)os and patches oi 
 stiff clay, richly calcareous, and productive in wheat. When the 
 escarpment of the Helderber|? limestone is less bold than where 
 I visited it, near Syracuse, its surface is jjenerally (nerspread 
 with the delnis of the softer rocks which adjoin it on eithc^r side. 
 It is so in the line of the cross section NS (Section, No. 111.), 
 and there the soil-, which cover it form a prolonpition of the rich 
 land, fertile in wheat, which covers the plains below. 
 
 In the accompanying outline map it will be seen that the belt 
 formed by these rocks (5 and 6) is very narrow in Western New 
 York, Farther to the west however it expands, and alonp the 
 north shore of Lake Erie it forms a wide and valuable tract ot land 
 in the fast fdling-up and fertile region of Western Canada. 
 
 No. 7, tlie Hamilton Group, consists of olive and dark-blue shale, 
 which, when alone, forms stiff dark-coloured clays far less ric^i 
 in calcareous matter than the Onondaga soils. Ihey are there- 
 fore less open and friable, and in consequence more difficult and 
 expensive to work. Still they are capable of producing excellent 
 wheat under favourable circumstances, or when properly prepared. 
 The celebrated Genessee valley rests on this formation, but the 
 natural soil of the Hamilton shales is there modified, or altogether 
 covered by drifted fragments of the Niagara limestone and other 
 more northern formations, which have been washed up the valley. 
 Hence the quality of the Genessee soils is not that ''.hich is 
 natural to those of the Hamilton group. 
 
 This group is of great thickness, and, as is shown in the map, 
 forms a belt of land 10 or 12 miles in breadth. Where the 
 shales are rich in lime they are submitted to arable culture. 
 They are everywhere however difficult to keep clean, and are 
 especially infested with corn gromwell (Lithospermum arvense), 
 called here pigeon-weed. They are for the most part, there- 
 fore, like our own stiff clays of the lias and other formations, 
 loft to perpetual grass, which they produce of excellent quality. 
 Here, therefore, the grazing and dairy country of Western New 
 York commences. 
 
 Nos. 8 and 9. The Genessee Slate (No. 8), which is separately 
 distinguished in the cross section (No. III.), is too tliin to form an 
 important agricultural feature of the country. It crumbles more 
 slowly than tlie Hamilton shales ; 1 ut where its fragments mix 
 with those of tlie Tully and other thin limestones and calcareous 
 shales beneath it — also represented in tlie section— it forms good 
 
 soils. 
 
 The rortatje and Chemnnf/ Groups (No. 9) consist of alterna- 
 tions of shales, poor in lime below, with flagstones ami massive 
 sandstones. They arc of enormous thickness, and extend south- 
 
 
 T 
 
4- 
 
 T 
 
 in Nurtli- Eastern America. 
 
 19 
 
 wanls hcyoml the borders of Pennsylvania, whore in the lim; ol 
 section they reach a heijjht of 1000 feet above Lake Ontario.* 
 These rocks beUmg to the Devonian series of Enjilish geoU)^r,sts, 
 and lie immediately under the old red sandstone, which begins 
 to cover them beyond the Pennsylvanian border— further towards 
 the south than tlie map or section extends. 
 
 The district occupied by these groups of rocks presents a 
 complete contrast to the wheat-re<;ion— a contrast rich in evidence 
 of the close relation between jjeological structure and aj>:ricuitural 
 capabilities. When first cleared th^. virjrin surface produces 
 croi)s of wheat, but after the first crops— as is the case m many 
 parts of New Brunswick, which rest upon similar rocks— winter 
 wheat becomes uncertain, and spring? grain only can be sown. 
 PxMug thus found naturally poorer, it is less cleared and culti- 
 vated than the more favoured land in the plains which border the 
 lakes. Like poor land among ourselves also— 1 may say like 
 poor land in all countries — it is occupied for the viost part by a 
 poorer race of cultivators, wlio direct their chief attention to the 
 rearing of stock and to dairy husbandry. , 
 
 The cross section, taken along the line N S in the map (p. 4^, • 
 exhibits at a glance tlie relations— pay sical, geological, and 
 agricultural— of this interesting district. It commences from 
 Lake Ontario on the north, and is continued nearly to the Penn- 
 sylvanian border on the south. 
 
 The above section sufficiently explains itself. It exhibits m 
 brief what in the preceding pages it has been necessary to state 
 verbally a little more in detail. The points it is intended chiefly 
 to illustrate are — . 
 
 a. The physical and geographical position of this celebrated 
 wheat-region in reference to Lake Ontario. 
 
 b. The special agricultural relations of the several groups of 
 rocks which in this district form the Silurian system of English 
 
 geologists. . 
 
 c. The sudden and striking change of produce and capability 
 which manifests itself when we ascend fr;Mn the calcareous soils 
 of the lower region, to the stiff clays of the more elevated 
 Hamilton group of ro(ks. The wheat region, par excellence, 
 is then entirely left behind, and a dairy country commences. ^ And 
 
 d. The still further contrast presented by what in our island 
 would be the heathy hills and moors of the Portage and 
 Chemung groups— destined, like our own poorer hills and high- 
 lands, to rear the hardier breeds of stock. ^ 
 
 On all these points I have already dwelt probably in sufficient 
 detail. 
 
 * Ontario itself is :>31 feet above tide-level. 
 
20 
 
 Relations of GcolorfU fo A(/riailfnrr 
 
 u 
 
 II 
 
 I 
 
 '/, =■ 
 
 W/y 
 
 ■£ « 
 
 S 
 
 /«/, 
 
 mi 
 
 
 » 3 
 
 mil: 
 
 II 
 
 ^ 
 
 y'/'y 
 
 CO to 
 
 H 
 
in Norf/i-Ftistcrn Amorint. 
 
 n 
 
 TIktc arc two additionnl oljscrvations liowovcr which I will 
 venture to introduce! as likely to interest the general reader. 
 Thev are l»otli in substance somewhat scientific, yet both cntuely 
 practical in their hearinj;. 
 
 First. In speaking of the soils which rest upon the Marcellus 
 
 shales ri'presented in the above section, I have allude«l to the 
 
 ilitliculty experienced in keeping them clean, and to their bemg 
 
 especially infested with the corn gromwell (Lithospermum 
 
 arvense), known in North America by tlie various names (d 
 
 pigeon-weed, red-root, steen-crout, st<my-seed, and wheat-thiet. 
 
 hr\'ates County, in Westen. New A'ork, a little to the west of 
 
 the line «.f section N S, the pigeon-weed is described to be so 
 
 abundant in some places as almost to have become the lord ol 
 
 the soil. It was unknown there -as it is said to have been ni 
 
 ail this lake country, and on the river flats of the St. Lawrence — 
 
 thirty years ago. It is supposed to have been an importation 
 
 from l':urope, probabl) in samples of unclean seed-corn from 
 
 i:ngl!uid, France, or Ger. umy. Now " hundreds of bushels of the 
 
 seed are purchased at the Vates County oil-mill, and,,, if it were 
 
 worth 8a-. instead of Is. Qd. a bushel, these hundreds would be 
 
 thousands." * , r i • 
 
 My readers will observe in the concluding words ot this quo- 
 tation how (me evil leads to another. The purchase of this seed 
 at the oil-mills must be mainly for tlie purpose of adulteration.t 
 I have examined samples of American linseed cake, in which 
 seed^ were to be recognised that I could not name. They 
 might, 1 then thought, be those of the dodder— a parasite which 
 in this country infests the flax-plant in some localities— but they 
 might also be other cheap seeds purposely mixed with the lin- 
 seed. To persons who are in the habit of buying the cheaper 
 varieties of American cake this point may not be unworthy of 
 att(>nti(m ; and as oil-cakes are chiefly bought by farmers, some 
 may rcimrd it as a kind of poetical justice, that the idle farmers 
 in (me country should be the means of punishing the less dis- 
 cerniii"- of their own class in another. 
 
 * Transiictious of the New York Stite Agricultural Society, 1846, p. 436. 
 
 t In the Tiaiisuctions of the New York State Agricultural &()ciety for I So!) 
 p -,10 I find it stated that this seed yields two or three quarts of oil from a bushel 
 of seed As a gallon of such oil weighs about 7^ lbs., we may take/our pounds us 
 the average yield of this seed per bushel. But linseed of 52 lbs. a bushel yiHds 
 17 lbs of oil • and the best rape of 5(i lbs. yields 16 lbs. a bushel. Supposing the 
 .rronuvell seed to be about 50 lbs. weight per bushel, 4 lbs of oil would barely 
 pay the cost of expressing, were it not for the value of the cake Kngl.sh crushers 
 redion that, for an additional shilling in the price of linseed per quarter, about 
 .•5 lbs more of oil should be yielded, so that in their reckoning, Is. 6(/., tiie price of 
 the gVomwell seed, would require 4^ lbs. of oil to pay the cost of the seed alone. 
 Thi- value of the cak.' therefore, as I have said in the text, must be waat the 
 Yates County crushers mainly look to. 
 
•n 
 
 Hefations of Gi'olof/i/ to Ajiriiultine. 
 
 Tlir pliysi<»Uni(!il history ol this Lithos|)<'rmuiii t<'a< hcs \is 
 lM)th how ncrcsstiry ii certain Jiniount of |)hysioh>i2;i« al kiiowh'djjc, 
 in reference especially to the plants of his own hniil llora, is to 
 the practical farine.- ; and also how unexpectedly the careless 
 farmer may be punished for a nef>;lect of what may he called the 
 very first rule of stronp;-land farminp;— that is, of keepin<r his 
 land clean. On the flat clay lands of I.ower Canada, opposite to 
 Montreal, formerly celebrated for their wheat, I found the same 
 weed spoken of as a universal pest, thouf^h as in New York State 
 it was said to have been wholly unknown thirty years before. A 
 constant repetition of wheat crops f'>r a lon^ series of \ ears with- 
 out cleaninjj; had led to this result. 
 
 The peculiarities in the character and habit of this weed consist, 
 first, in the hard shell with which its seed or nut is covered ; 
 Second, in the time at which it comes up and ripens its seed ; 
 third, 'n tiie superficial way in which its roots spread. Tiie 
 hardness of its coverinj; is s'jsch that " neither the gizzard of a 
 fowl nor tlic stomach of an ox can destroy 't." Thus it will be 
 for years in the ground without perishing— r ady to sprout when 
 an opportunity of germinating occurs. It grows very little in 
 spring, but it shoots up and ripens in autumn, and its roots 
 spread through the surface soil only, and exhaust the food by 
 which the young wheat should be nourished. A knowledge of 
 these facts teaches us, first, that unless care be taken to exclude 
 the seed from the farm, it will remain a troublesome weed for 
 many years, even to the industrious, careful, and intelligent culti- 
 vator. It is said to be so pi< lific as to increase " more than 200 lold 
 annually !" In the seco7id place, that spring ploughing will do 
 lirtle good in the way of extirpating it, as at that season it has 
 scarcely l)egun to grow. United spring and autumn ploughing is 
 " the only reliable remedy." Thirdly— i\i^i raising whea; year 
 after year allows it to grow and ripen wi*^ the wheat, and ♦o seed 
 the ground more thickly every surcessive crop. It is said that 
 when it has once got into the .. ii i Iv/oor three successive crops 
 of wheat will give it entire possession ' >f the soil. It is noi there- 
 fore the immediately exhausting effects of successive corn crops 
 which have alone almost banished the wheat culture from large 
 tracts of land in North America, especially on the river St. Law- 
 rence. The indirect or attendant consequences of this mode of 
 culture— the weeds it fosters, &c.— have had an important in- 
 fluence also. 
 
 These observations are not without their value at home. For 
 although with us a continued succession of corn crops is rarely 
 now seen upon any land, yet foul and weedy farms are unhappily 
 still too frequent. And tlie more one studies the history and 
 habits of the weeds, which almost every district can boast of as 
 
 T 
 
T 
 
 OnflMl 
 
 /'// North- F.astirit America, 2) 
 
 pr( uliarly !itt;ulu'«l to itscll, the more one iH-corncs satisficMl of 
 I lie viiliu' of a lainiliar accjiiaintancc with tlirin, t(j the improvt'- 
 incnt of thr art of ciilturo, of the coiKlition of those who prac tise 
 it, and of the a^ricultuial pro(lu( tivem-ss of a country. No one 
 will readily acctise ine of a desire to undervalue the usefulness of 
 chemistry to ay:rieulture, and yet I have often hod occasion to 
 ve\iyvX tlu! evil inlluence of opinions hastily expressed by 'M- 
 inf«»rined persons — as if this branch of knowledfre alone were able 
 to brin-j this most important and diOicult of arts to speedy per- 
 fection. The longer a cautious and truth-seckinj; man lives, the 
 wilier will appear the van;;e «jf knowledjje, theoretical and prac- 
 tical — the more numerous the circumstances to be taken into 
 consideration — before he can arrive at an accurate solution even 
 of what some look upon as simi)l<? and superficial questions. 
 
 Second. The second observation I wish to ad<l refers to tiie exten- 
 sion of the richest wheat-bearinj^ formations of Western New 
 \'ork into the; upper part of Canada West. The consequence of 
 this extension is the reproduction in this m^w region o{ the great 
 natural capabilities of tlie country 1 have been describing. 
 
 Bounded on the east by Lake Ontario, on the west by Lake 
 Huron, on the south by Lake Erie, and on the north by Mana- 
 toulin Hay, stretches a wide peninsula, occupying an area three 
 or four times as large as the wheat region of Western New York, 
 and covered entirely by those rocky formations on which the fer- 
 tility of the latter region mainly depends. Proceeding westward 
 from the head of Lake (Ontario, we pass in succession over the 
 surface of the Mtulina sandstone, the Niagara limestone, the 
 Onondaga salt group, and the Helderberg limestcme and shales. 
 On these, as the map and sections ccmtained in this paper show, 
 the principal wheat region in Western New York is situated. It 
 will also l)e recollected that among these the Onondaga salt group 
 is ("specially conspicuous for the natural fertility and friableness 
 of its soils, and for the ease with which they can be worked and 
 cultivated. 
 
 Now in this peninsular portion of Canada West, the Medina 
 sandstone and Niagara limestone expand .i little after they turn 
 round tlie western end of Lake Ontario, and then run towards the 
 north in belts somev hat broader than those wliich they form In 
 W^estern New York. But the Onondaga salt group widens to 
 such a degree as in a line due west from Toronto to be upwards 
 of sixty miles across, and to occupy almost the v.diole breadth of 
 the j)eninsula between the two lakes, Ontario and Huron. The 
 natural capabilities of tliis new region, as a whole, may be In- 
 ferred from wliat I have already said of the results of experience 
 in the state of New York. So far as depends upon soil, it ought 
 to be one of the richest agricultural regions in North America. 
 
24 Relations of Geoloc/i/ to Ar/rirulfurf. 
 
 Towards the southern ernl of the peninsula ajjain, and alonof tl 
 
 entire northern mar 
 
 __^ _^iu of Lake Krie, of the Lake ami River St. 
 
 Clair, and of Gratiot's Bay, in the southern part of Li.ke Huron, 
 the Helderberj? formation extends. It will be recollected that 1 
 have above described this rock, as it occurs in Western New York, 
 to be in some places covered with thin soils productive of wheat ; 
 but that over it lie certain calcareous shales (Marcellus shales), 
 which, when not entirely removed from the surface by the action 
 of ancient waters, form a sr)il equal to almost any other in pro- 
 ductive capability. The larjj^e portion of this Western Canauian 
 peninsula, over which this Helderl)erg formation extends, must, 
 therefore, like that occupied by the Onondaga group, contain many 
 tracts of fertile land, and this, as well as its neighbourhood to the 
 lake, is no doubt a cause of the rapidity with which it is in the 
 process of settlement. Indeed, whjn we consider that nearly the 
 whole of this peninsular region consists either of the Helderberg 
 rocks or of those of the Onondaga group, we cannot help pre- 
 dicting both a rapid filling up and a great future, in many re- 
 spects, to this most interesting portion of Canada. 
 
 Thus from the humbler task of explaining why certain regions 
 have exhii^ited and still manifest a singular natural fertility, 
 geology advances to the higher gift of prediction. United theory 
 and observation enable it to point out where rich and desirable 
 lands are sure to be found— to inform the statesman as to the 
 true value cf regions still wild and neglected— to direct the agri- 
 cultural emigrant in the choice of new homes--and, looking f;ir 
 into the future, to specify the kind of population and the pro- 
 cesses of industry which will hereafter prevail upon it — the 
 comparative comfort, wealth, numbers, and even morality, of its 
 
 future people. 
 
 A third illustration, not less interestmg than the two jUready 
 introduced, I had intended to draw from our own province of 
 \cw Brunswick, hut this 1 must reserve, with the remainder of 
 my subject, for another article. 
 
 I 
 
 UlM>ON : PHINTEI) »Y WILLIAM CUIWKS ASi) ?ON«, STAHIFOIin STRFFT.