The use of this Table following. IF upon a scale or ruler you divide one inch into 10 equal parts or primes, and again by diagonal and parallel lines if you subdivide each of them into 10 equal parts or seconds, as my Trigonal Scales are divided with your compasses you may take of more exact running measure for board and timber then by any other means whatsoever, and so place the same, or this Table if you will upon any rule. Also by means of the column of square roots, you may readily find a square equal to any paralelipepidon or piece of timber which is thicker than it is broad. As for example, suppose a piece of Timber to be 10 inches thick, and 29 inches broad: if I multiply those sides one by another, they will produce 290, then séekeing in that column I find 289 the nearest number 〈◊〉 290 to stand against 17: therefore I say 17 inches fere will make a square equal to such an unlike squared piece: then looking in the column of Timber measure against 17, you shall find that 5 inches 9 primes or 9/10, and 8 seconds, or 8/100 of an inch in length of that piece will make a foot of Timber. By the like means you may find how much in length of any breadth of board must be in one foot. Likewise for board measure, suppose for example that a boode appointed to be measured is 15 inches ¾ broad, if I desire to know how much in length thereof will make a foot. I seek in the columns that stand under the title of unites & parts for 15¾, and also over against the same in the column under the title of board measure, where I find 9 inches 1 prime or tenth of an inch, and 4 seconds or hundreds of an inch will make a foot at that breadth: the like may be practised for any other breadth of board whatsoever. A TABLE OF BOARD AND Timber measure, more perfect than ever hath been made; showing also the Square root between 4 and 31 from quarter to quarter, Calculated by R. N. Board measure. Vnits and parts Square roots. Timber measure. 36 0 0 4 16 108 0 0 33 7 8 1 18 98 7 4 32 0 0 2 20 85 3 8 30 1 0 3 22 76 5 8 28 0 8 5 25 69 1 2 27 4 2 1 27 62 3 3 26 1 1 2 30 57 1 7 24 9 9 3 33 52 2 6 24 0 0 6 36 48 6 0 23 0 4 1 39 44 2 4 22 1 4 2 42 40 8 9 21 3 3 3 45 37 7 1 20 5 7 7 49 35 2 6 19 8 6 1 52 32 8 7 19 2 0 2 56 30 7 2 18 8 9 3 60 28 7 7 18 0 0 8 64 27 0 0 17 4 6 1 68 25 3 0 16 9 4 2 72 23 9 1 16 4 6 3 76 22 5 7 16 0 0 9 81 21 3 3 15 5 6 1 85 20 1 8 15 1 5 2 90 18 9 7 14 7 9 3 95 18 1 8 14 4 0 10 100 17 2 8 14 0 4 1 105 17 4 6 13 7 1 2 110 15 2 2 13 3 9 3 115 14 9 5 13 0 9 11 121 14 2 9 12 8 0 1 126 13 6 3 12 5 2 2 132 13 0 0 12 2 7 3 138 12 5 2 12 0 0 12 144 12 0 0 11 7 5 1 150 11 5 1 11 5 2 2 156 11 0 5 11 2 9 3 162 10 6 3 11 0 7 13 169 10 2 2 10 8 7 1 175 9 8 3 10 6 7 2 182 9 5 8 10 4 7 3 189 9 1 4 10 2 8 14 196 8 8 1 10 1 1 1 203 8 5 0 9 9 3 2 210 8 2 0 9 7 6 3 217 7 9 4 9 6 0 15 225 7 6 9 9 4 5 1 232 7 4 3 9 2 9 2 240 7 2 6 9 1 4 3 248 6 9 7 9 0 0 1● 256 6 7 5 8 8 6 1 264 6 5 4 8 7 3 2 272 6 3 5 8 6 0 3 280 6 1 6 8 5 8 17 289 5 9 8 8 3 4 1 297 5 8 1 8 2 2 2 306 5 6 4 8 1 1 3 315 5 4 5 8 0 0 18 324 5 3 3 7 8 9 1 331 5 2 2 7 7 8 2 342 5 0 4 7 6 8 3 351 4 9 2 7 5 8 19 361 4 7 8 7 4 8 1 370 4 6 6 7 3 9 2 380 4 5 4 7 2 9 3 390 4 4 0 7 2 0 20 400 4 3 2 7 1 1 1 410 4 2 1 7 0 2 2 420 4 1 1 6 9 3 3 430 4 0 1 6 8 6 21 441 3 9 2 6 7 7 1 451 3 8 2 6 6 9 2 462 3 7 3 6 6 1 3 473 3 6 7 6 5 4 22 484 3 5 7 6 4 7 1 495 3 4 9 6 4 0 2 506 3 4 1 6 3 3 3 517 3 3 3 6 2 6 23 529 3 2 7 6 1 9 1 540 3 1 9 6 1 2 2 552 3 1 1 6 0 6 3 564 3 0 6 6 0 0 24 576 3 0 0 5 9 4 1 588 2 9 8 5 8 3 2 600 2 8 7 5 8 9 3 612 2 8 2 5 7 6 25 625 2 7 6 5 7 0 1 637 2 7 1 5 6 5 2 650 2 6 5 5 5 8 3 662 2 6 0 5 5 4 26 676 2 5 4 5 4 8 1 689 2 5 0 5 4 3 2 702 2 4 7 5 3 8 3 715 2 4 1 5 3 3 27 729 2 3 7 5 2 8 1 742 2 3 2 5 2 3 2 756 2 2 ● 5 1 8 3 707 2 2 4 5 1 4 28 784 2 2 0 5 0 9 1 798 2 1 6 5 0 5 2 812 2 1 2 5 0 0 3 826 2 0 9 4 9 6 29 841 2 0 5 4 9 2 1 856 2 0 2 4 8 8 2 871 1 9 8 4 8 8 3 88● 1 9 5 4 8 0 30 900 1 ● ● 4 7 6 1 915 1 9 2 4 7 2 2 9●0 1 8 8 4 6 8 3 945 1 8 3 4 6 4 31 961 1 7 9 4 6 1 1 974 1 7 6 4 5 7 2 987 1 7 4 4 5 3 3 1000 1 7 ● 4 5 0 32 1024 1 6 9 4 4 6 1 1040 1 6 6 4 4 3 2 1056 1 6 3 4 4 0 3 1072 1 6 2 4 3 6 33 1089 1 5 9 4 3 3 1 1104 1 5 6 4 3 0 2 1120 1 5 4 4 2 7 3 1136 1 5 2 4 2 3 34 1156 1 4 9 4 2 0 1 1174 1 4 7 4 1 7 2 1190 1 4 5 4 1 4 3 1210 1 4 3 4 1 1 35 1225 1 4 1 4 0 8 1 1237 1 4 0 4 0 5 2 1247 1 3 7 4 0 3 3 1280 1 3 5 4 0 0 36 1296 1 3 3 3 9 7 1 1313 1 3 1 3 9 4 2 1331 1 2 9 3 9 1 3 1350 1 2 7 3 8 9 37 1369 1 2 6 3 8 7 1 1388 1 2 4 3 8 4 2 1416 1 2 2 3 8 2 3 1425 1 2 0 FINIS Tabulae.