 TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES  New Mental Arithmetic - Page 125by James Bates Thomson - 1876 - 144 pagesFull view - About this book
 | James Bates Thomson - 1877 - 236 pages
...jewels. 15. What are the denominations ? Pounds, ounces, pennyweights, and grains. TABLE. 24 grains (yr.) are 1 pennyweight, pwt. 20 pennyweights " 1 ounce,...Weights and Measures, is to let them see and handle the actual standards, or some material objects which are equal to the several units of length, surface,... | |
 | Daniel Bernard Hagar - Arithmetic - 1877 - 236 pages
...weighing gold, silver and gems. The units are a grain, a pennyweight, an ounce and a pound. TABLE. %Jf grains (gr.) are 1 pennyweight .... pwt. 20 pennyweights.............. oz. 12 ounces 1 pound ........... lb. A Pound Avoirdupois is equal to 7000 Troy grains. 310. Apothecaries, in compounding medicines and in... | |
 | William James Milne - Arithmetic - 1877 - 402 pages
...TROY WEIGHT. 272. Troy Weight is used in weighing gold, silver, and jewels. TABLE. 24 Grains (gr.) = 1 Pennyweight . . . pwt. 20 Pennyweights = 1 Ounce oz. 12 ounces = 1 Pound lb. lb. oz. pivt. gr. 1 = 12 = 240 = 5760 Scale — 24, 20, 12. 1. In weighing diamonds, pearls, and other... | |
 | Horatio Nelson Robinson, Daniel W. Fish - Arithmetic - 1877 - 374 pages
...in weighing gold, silver, and jewels, and in philosophical experiments. TABLE. 24 Grains (gr.) make 1 Pennyweight. pwt. 20 Pennyweights " 1 Ounce oz. 12 Ounces " 1 Pound Ib. UNIT EQUIVALENTS. pwt. gr. oz. 1 = 24 Ib. 1--= 20= 480 1 = 12 = 240 = 5760 SCALE— ascending,... | |
 | Edward Brooks - Arithmetic - 1877 - 250 pages
...weighing gold, silver, jewels, liquors in philosophical experiments, etc. TABLE. 24 grains (gr.) = 1 pennyweight, . . pwt 20 pennyweights = 1 ounce oz. 12 ounces — 1 pound, . . . . Ib. !. NAME. — The term Troy is said to be derived from Troya, the name of a town in France,... | |
 | Edward Brooks - Arithmetic - 1877 - 438 pages
...in weighing gold, silver jewels, liquors in philosophical experiments, etc. TABLE. 24 grains (gr.) = 1 pennyweight, . . pwt. 20 pennyweights = 1 ounce, . . . . oz. 12 ounces = 1 pound, Ib. T. NAME. — The term Troy is said to be derived from Truyes, the name of a town in France, where... | |
 | Edward Brooks - Arithmetic - 1877 - 528 pages
...used in weighing gold, silver, jewels, in philosophical experiments, etc. TABLE. 24 grains (gr.) . = 1 pennyweight . pwt. 20 pennyweights . = 1 ounce . . oz. 12 ounces . . =1 pound . . Ib. Ib. oz. pwt. gr. 1 = 12 = 240 = 5760 ' 1 = 20 = 480 SCALE.— Ascending, 24, 20, 12 ; descending,... | |
 | William James Milne - Arithmetic - 1877 - 418 pages
...TROY WEIGHT. 272. Troy Weight is used in weighing gold, silver, and jewels. TABLE. 24 Grains (gr.) = 1 Pennyweight . . . pwt. 20 Pennyweights = 1 Ounce oz. 12 ounces = 1 Pound : Ib. Ib. oz. pti't. gr. 1 = 12 = 240 = 5760 Jade — 24, 20, 12. 1. In weighing diamonds, pearls,... | |
 | Frederic William Bardwell - Arithmetic - 1878 - 416 pages
...already described. Other divisions of the pound are shown in the following Table. 24 grains (gr.) make 1 pennyweight . . pwt. 20 pennyweights " 1 ounce oz. 12 ounces " 1 pound Ib. Apothecaries' Weight. This is used in mixing medical prescriptions. In other cases drugs are bought... | |
 | Benjamin Greenleaf - Arithmetic - 1879 - 238 pages
...weight ? TROY WEIGHT. 152. Troy Weight is used for gold, silver, and jewels. Table. 24 grains (gr.) nre 1 pennyweight, pwt. 20 pennyweights. 1 ounce, oz. 12 ounces, 1 'pound, Ih. APOTHECARIES, in mixing medicines, use the po«?id, ounce (§), and grain, of this weight; but... | |
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