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" 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 "
First Lessons in Arithmetic: Combining the Oral Method with the Method of ... - Σελίδα 149
των Charles Davies - 1849 - 168 σελίδες
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Complete Arithmetic: Combining Oral and Written Exercises

Edward Sylvester Ellis - 1889 - 370 σελίδες
...in weighing gold, silver, jewels, and fluids in philosophical experiments. TABLE. 24 grains (gr.) = 1 pennyweight, pwt. 20 pennyweights = 1 ounce, oz. 12 ounces = 1 pound, Ib. The unit of weight is the Troy pound, which is equal in weight to 22.794377 cubic inches of distilled...

Intermediate Arithmetic: By William J. Milne ...

William James Milne - 1900 - 236 σελίδες
...TROY WEIGHT. 219. In weighing gold, silver, and jewels Troy Weight is used. TABLE. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). The Troy lb. contains 5760 gr. ; the Avoirdupois Ib., 7000 gr. The Troy oz. contains 480 gr....

Hand Book of Calculations for Engineers and Firemen: Relating to the Steam ...

Nehemiah Hawkins - 1901 - 354 σελίδες
...yd. 128 cubic feet, 1 cord, C. TROY WEIGHT. This is used for weighing gold, silver and jewels. TABLE. 24 grains (gr. ) make 1 pennyweight, pwt. 20 pennyweights, 1 ounce, oz. 12 ounces, 1 pound, Ib. A caret, for gold-weight, is 4 grains; for diamond-weight. IB 3.2 grains. APOTHECARIES WEIGHT. SOLID...

Heath's Complete Practical Arithmetic

Charles Edward White - 1901 - 472 σελίδες
...called a Cental. 195. 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. 1 Ib. = 12 oz. = 240 pwt. = 5760 grains. 196. Apothecaries' Weight is used by druggists and physicians...

New Practical Arithmetic

Eugene L. Dubbs - 1901 - 462 σελίδες
...WEIGHT 53. Troy weight is used for weighing gold, silver, and precious stones. TABLE. 24 grains (gr.) = 1 pennyweight . . pwt. 20 pennyweights = 1 ounce . . . . oz. 12 ounces = 1 pound . . . . Ib. REMARK. The standard unit of weight in the United States is the Troy pound, which contains 5760 grains....

A Textbook on Sheet-metal Pattern Drafting, Τόμος 1

1901 - 548 σελίδες
...grains, and a grain troy is the same as a grain avoirdupois. TABLE OF THOY WEIGHT. 24 grains (gr.) =. 1 pennyweight . . pwt. 20 pennyweights = 1 ounce oz. 12 ounces =1 pound Ib. 9 APOTHECARIES' WEIGHT. 22. Apothecaries' weight is used by physicians in prescribing and by druggists...

Heath's Primary Arithmetic

Charles Edward White, Bruce Mervellon Watson - 1902 - 272 σελίδες
...Ib. to ounces. TROY WEIGHT 238. Troy weight is used for weighing gold, silver, and precious stones. TABLE OF TROY WEIGHT 24 grains (gr.) make 1 pennyweight (pwt.). 20 pennyweights make 1 ounce (oz.). 12 ounces make 1 pound (Ib.). Can you tell why Troy weight has no larger denomination...

Graded Work in Arithmetic, Βιβλίο 5

Samuel Wesley Baird - 1901 - 174 σελίδες
...as gold and silver. The unit of weight is the pound, which contains 5760 grains. TABLE 24 grains = 1 pennyweight (pwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (Ib.) The carat is a unit of 4 imaginary grains employed in rating diamonds and precious stones, as the ruby,...

A Textbook of Electric Lighting and Railways, Τόμος 1

International Correspondence Schools - 1901 - 630 σελίδες
...unless the long ton (2,2-tO pounds) is especially mentioned. TUOY "WEIGHT. TABLE. 24 grains (gr.) = 1 pennyweight .... pwt. 20 pennyweights = 1 ounce oz. 12 ounces = 1 pound Ib. Ib. oz. pwt. gr. 1 = 12 = 240 = 5,760 Troy weight is used in weighing gold and silver ware, jewels,...

The Natural Arithmetic: Book I-III

Isaac Oscar Winslow - 1901 - 284 σελίδες
...7000 grains. TROY WEIGHT Troy Weight is used in weighing gold, silver, and jewels. 24 grains (gr.) = 1 pennyweight (pwt). 20 pennyweights =* 1 ounce (oz.). 12 ounces = 1 pound (Ib.). APOTHECARIES' WEIGHT Apothecaries' Weight is used in mixing medicines. 20 grains (gr.)= 1 scruple (Э)....




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