10 1234 168 32 60 91 121 152 33 61 92 122 153 Table 18.-To find the number of Days from Jan. 1st to Dec. 31st. Days. Jan. Feb. Mar. April May June July Aug. Sep. Oct. Nov. Dec. 182 213 244 274 305 183 214 245 335 275 306 336 337 7 11 11 In Leap Years, one day must be added after the 28th of February. THE USES of the foregoing taBLE. 1. To find the number of days from the end of the year to any day in any month of the year following. Rule.-Opposite the given day in the margin, look under the given month, which will show the number of days required. II. To find the number of days from any particular day to the end of the year; suppose 27th July. From 365 (the days in a year) take the number answering to 27th July, viz. 208; the remainder is 157 days. III. To find the number of days from any day in one month to any day in another month; suppose from 5th April to 28th November. Rule.-Take the difference between the numbers corresponding to those days: e. g. between Nov. 28th, the 322d day of the year, and April 5th, the 95th, are 237 days. IV. To find the number of days between any day in one year to any day in the year following; suppose from 21st August, 1842, to 27th May, 1843. From 365 days in a year, take the number of 21st August, 233 days, which leaves 132 days in 1842; add the number up to 27th May, 147 days, together make the total 279 days required. Section 4. COMPARISON OF WEIGHTS. Table 19.-For converting Chinese Money Weight into English Formula for reducing Chinese, English and Indian weights. One pound troy is equal to taels 93 nearly. One pound avoirdupois is equal to three-fourths of a catty, or 12 taels. One ton is equal to 16 piculs 80 catties. One ton is equal to 27.222 Indian maunds, or nearly 27 maunds. One Indian maund is 824 lbs. avoirdupois exactly. One maund or 100 lbs. troy is equal to 993.446 taels. One tael is equal to 3.221 tolahs. One Bengal factory maund is equal to 56 catties. One Bengal bazar maund is equal to 61.6 catties. To convert taels into pounds troy.-Divide by ten, and to the quotient add two-thirds of one per cent. To convert piculs into pounds avoirdupois.—Add a third to the number of catties. To convert pounds avoirdupois into piculs.-Subtract a quarter, and divide by 100. To convert hundred-weights into piculs.-Multiply by 84 catties, and divide by 100. To convert Bengal factery maunds into piculs. Multiply by 56, and divide by 100. To convert piculs into hundred-weights.-Multiply by 100, and divide by 84; or if minute exactness is not required, add one-fifth, and from the result deduct 8 per mil. To convert piculs into Bengal factory maunds.-Multiply by 100, and divide by 56; or if minute accuracy is not required, add three-quarters, and two per cent. upon the result. To convert Bengal bazar maunds into piculs.-Multiply by 616, and divide by 1000. To convert piculs into Bengal bazar maunds-Multiply by 1000 and divide by 616; or if minute accuracy is not required, add 623 per cent. To convert Indian weights into avoirdupois weight.-1. Multiply the weight in seers by 72, and divide by 35; the result will be the weight in pounds avoir. Or 2, multiply the weight in maunds by 36, and divide by 49; the result will be the weight in pounds avoir. To convert avoirdupois weight into Indian weights.-1. Multiply the weight in pounds avoir. by 35, and divide by 72; the result will be the weight in seers. Or 2, multiply the weight in cwts. by 49, and divide by 36; the result will be the weight in maunds MEASURING ROD. 222 000 005 085 090 095 100 105 110 115 120 1216 1230 1245 1259 1274 1288 1303 1318 219 233 248 262 276 291 306 321 236 250 265 279 294 309 324 225 239 253 268 282 297 312 327 227 242 256 271 285 300 315 330 210 215 220 225 230 235 240 245 1622 1641 1660 1679 1698 1718 1738 1758 626 644 663 683 702 722 742 762 629 648 667 687 706 706 726 746 766 633 652 671 690 710 730 750 770 637 656 675 694 714 734 754 774 1000 1012 1002 014 1005 016 1007 019 1009 021 125 130 1334 1349 1337 352 1340 355 1343 358 1346 361 250 255 335 340 345 350 355 360 365 370 1778 1799 1 2163 2188 2213 2239 2265 2291 2317 2344 1782 803 168 193 218 244 270 296 323 350 1786 807 1791 811 1795 816 375 380 2371 2399 2 2377 404 301 328 355 307 333 360 173 198 223 249 275 460 465 470 475 480 485 490 495 2382 410 2388 415 904 937 2393 421 911 944 891 921 958 2992 027 062 097 133 076 112 148 083 119 155 585 590 595 600 605 610 615 620 3846 3890 3936 3981 4027 4074 4121 4169 855 899 945 3990 036 083 130 178 954 3999 046 093 140 188 963 4009 055 102 150 198 972 4018 064 111 159 207 710 715 720 625 730 735 740 745 5129 5188 5248 5309 5370 5433 5495 5559 140 200 260 321 383 445 508 572 152 212 272 333 395 458 521 585 164 224 284 346 408 470 534 598 176 236 297 358 420 483 546 610 . 750 755 7 835 840 845 850 855 860 865 870 5623 5689 5 7839 7918 6998 7079 7161 7244 7328 7413 5636 702 5649 715 855 934 7015 096 178 871 950 7031 112 194 278 362 447 5662 728 887 966 7047 129 211 295 379 464 5675 741 902 982 7063 145 228 311 396 482 261 345 430 875 8808 960 965 970 975 980 985 990 995 7499 7586 7 9120 9226 9332 9441 9550 9661 9772 9886 141 247 354 462 572 683 795 908 162 268 376 484 594 705 817 931 Table 20.-Chinese, Indian, and English large Weight compared. * By this weight China sugar is sold at Bombay. By this weight Malwa opium is sold at Damaun and in the interior of India. Section 5. MEASUREMENT OF CARGO. The logarithmic tonnage rod or callipers which accompanies this table is a very ingenious instrument, invented by Mr. Stansbury, an American merchant, formerly of Canton, and is graduated, not by feet and inches, but by the dimensions corresponding to the logarithms thereof. These logarithms being ascertained by measurement, and added up, the feet and decimal parts corresponding to the sum of them are ascertained by Table 21, on the opposite leaf. On the rod is placed a small auxiliary table, for the purpose of ascertaining the amount of freight corresponding to given logarithms, at various rates per ton. Measure the package, the cubic contents of which are required, noting the number of the division each dimension extends to; add the three numbers together; point off and reserve the thousands, or fourth lefthand figures, if there be any; then find, on the upper line of the table, the other three figures, or the next less figures marked there (for they are marked only by fives); immediately under them are five lines of four figures each, one of which lines will correspond to the exact number. Thus, under No. 740 are these five lines of figures, 5495, 5508, 5521, 5534, and 5546, which mean that the figures corresponding to No. 740 are 5495;-to No. 741, 5508 ;-to No. 742, 5521; to No. 743, 5534;and to No. 744, 5546; which will be easily understood by inspection and a little practice. C.G. 52 |