Q. What things are weighed by Troy weight? What are its lenominations? Repeat the Table? EXAMPLES. 1. Reduce 166. 11oz. 15pwt. to penny weights. 2. In 25lb. 9oz. Opwt. 20gr.: how many grains? 3. Reduce 6490gr. to pounds. We first divide by the number of grains in a pwt.; then by the puts. in an oz.; then by the ounces in a lb. Ans. 148340. OPERATION. 24) 6490 20)2710 10gr. remainder. 12)13.. 10pwt. remainder. 1. loz. remainder. Ans. 1lb. 1oz. 10pwt. 10gr. 4. In 678618 grains, how many pounds? Ans. 117lb. 9oz. 15pwt. 18gr. 5. Reduce 8794pwt. to pounds. Ans. 36lb. 7oz. 14pwt. APOTHECARIES' WEIGHT. 60. This weight is used by apothecaries and physicians in mixing their medicines. Its denominations are pounds, ounces, drams, scruples, and grains. The pound and ounce are the same as the pound and ounce in the Troy weight; the difference between the two weights consists in the different divisions and subdivisions of the ounce. TABLE. 20 grains, gr. make 1 scruple, marked 9. 3 scruples 12 ounces 1 dram, 3. Q. What is the use of the Apothecaries' weight? What are its denominations? Of what value are the pound and the ounce? Repeat the Table. EXAMPLES. OPERATION. 9 12 116 ounces. 1. Reduce 9 83 63 20 12gr., to grains. We first multiply by the number of ounces in a lb., and at the same time add in the ounces. We next multiply by the number of drams in an ounce and add in the drams: we then multiply by the number of scruples in a dram and add in the scruples; and lastly, we multiply by 20 and add in the grains. 934 drams. 3 2804 scruples. 20 Ans. 56092 grains. 2 Reduce 27mb 93 63 19 to scruples. 3. Reduce 94 113 13 to drams. Ans. 8011 scruples. Ans. 9113 dran.s. 4. In 56092 grains, how many pounds? We first divide by 20, the number of grains in a scruple: then by 3 the number of scruples in a dram; then by 8 the number of drams in an ounce; and lastly by 12, the number of ounces in a pound. OPERATION. 2|0)5609|2 . 8) 934 29. 63. 12) 116 9 lb 83. 61. By this weight are weighed all coarse articles, such as hay, grain, chandlers' wares, and all the metals, excepting gold and silver. Its denominations are tons, hundreds, quarters, pounds, and drams. In this weight the words gross and nett are used. Gross is the weight of the goods, with the boxes, casks, or bags, in which they are contained. Nett is the weight of the goods only; or what remains after deducting from the gross weight, the weight of the boxes, casks, or bags. A hundred weight is 112 pounds, as appears from the Table. But at the present time, the merchants in our principal cities, buy and sell by the 100 pounds. Q. What articles are weighed by this weight? What are its denominations? What does gross mean? What does net mean? What is a hundred weight? How do they buy and sell in the principal cities? Repeat the Table. EXAMPLES. 1. Reduce 5T. 8cwt. 3qr. 24lb. 13oz. 14dr. to drams. 2. Reduce 27T. 17cwt. 29qr. 21lb. to ounces. Ans. 1011472oz. 3. Reduce 94T. 19cwt. 1gr. to quarters. Ans. 7597qr. 4. Reduce 3124446 drams to tuns. 4x4=164) 3124446 4x4=16 { 4)48819... 1 4)781111 2 ... 4)195277 3x4+2=14dr. 4)12204 3x4+1=13oz. 7)3051 Ans. 5T. 8cwt. 3qr. 24lb. 13oz. 14dr. 5 Reduce 108910592 drams to tons. Ans. 189T. 18cwt. 2qr. 6. Reduce 2998128 ounces to tons. Ans. 83T. 13cwt. Oqr. 7 b LONG MEASURE. 62. Long measure is used when length only is considered. Its denominations are degrees, leagues, miles. furlongs, rods, yards, feet, inches, and barley-corns. NOTE.-A fathom is six feet, and is generally used to measure the depth of water. A hand is 4 inches, and is used to measure the height of horses. Q. When is Long Measure used? What are its denominations? Repeat the table. What is a fathom? What is a hand? EXAMPLES. 1. In 675 ft. 10in. 2bar.; how many barley-corns? We first reduce the feet to inches and then add in the 10 inches: we next reduce the inches to barleycorns and add in the 2 bar eycorns. OPERATION. 675 12 8110 3 Ans. 24332 barley-corns |