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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 "
Cobb's Explantory Arithmetick, Number Two: Containing the Compound Rules ... - Σελίδα 12
των Lyman Cobb - 1836 - 216 σελίδες
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Numbers Applied

Andrew Jackson Rickoff - 1888 - 464 σελίδες
...Weight is used. The standard unit is the Troy pound = 5760 grains. Troy Weight. Table. 24 Grains (gr.) - 1 Pennyweight (pwt.). 20 Pennyweights = 1 Ounce (oz.). 12 Ounces = 1 Pound (lb.). Equivalents. 1 Pound = 12 Ounces = 240 Pennyweights = 5760 Grains. Practical illustrations of...

An Advanced Arithmetic, Theoretical and Practical

James William Nicholson - 1889 - 408 σελίδες
...center of the earth. 250. Troy weight is used in weighing precious stones, gold, silver, etc. • TABLE. 24 grains (gr.) make 1 pennyweight (pwt.) 20 pennyweights " 1 ounce (oz.) 12 ounces " 1 POUND (lb.) The standard unit of weight in the United States is the troy pound of the Mint, which is identical...

The Essentials of Business Arithmetic, for Use in Business Colleges

Caton's national business college, Buffalo, N.Y. - 1889 - 330 σελίδες
...WEIGHT. 157. Troy "Weight is used in weighing gold, silver, jewels, etc. Scale : 24 grains (gr.) = 1 pennyweight (pwt.) ; 20 pennyweights = 1 ounce (oz.) ; 12 ounces = 1 pound (Ib.) 158. Apothecaries' "Weight is used by physicians and apothecaries in compounding medicines which are...

Elementary Arithmetic: Combining Oral and Written Exercises

Edward Sylvester Ellis - 1889 - 196 σελίδες
...TROY WEIGHT. ART. 152. — 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. ART. 153. — Apothecaries' Weight is used in compounding medicines. 20 grains...

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...

Essentials of Business Arithmetic: For Use in Schools and Colleges

Warren H. Sadler, William Russell Will - 1890 - 316 σελίδες
...OF WEIGHT. 157. Troy Weight is used in weighing gold, silver, jewels, etc. Scale : 24 grains (gr.) = 1 pennyweight (pwt.) ; 20 pennyweights = 1 ounce (oz.) ; 12 ounces = 1 pound (lb.) 158. Apothecaries' "Weight is used by physicians and apothecaries in compounding medicines which...

The New Model Arithmetic

Henry Holmes Belfield - 1891 - 362 σελίδες
...TROY WEIGHT. 304. 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. ) UNIT EQUIVALENTS. to. oz. putt. gr. 1 « 12 = 240 = 5760 1 = 20 480 1 24 A carat Is a weight of about...

First Lessons in Arithmetic Oral and Written: For Primary Schools

James Bates Thomson - 1891 - 206 σελίδες
...LESSON XI. Troy Weight. Troy Weight is used to weigh gold, silver, jewels, etc. TABLE. 24 grains (gr.) = 1 pennyweight, pwt. 20 pennyweights = 1 ounce, oz. 12 ounces = 1 pound, Jb. ORAL EXERCISES. 1. How many grains in 2 pennyweights ? 2. How many pwts. in 2 oz. ? 3 oz. ? 5 oz....

Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - 1892 - 428 σελίδες
...Troy Weight is used 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. EXAMPLES. 1. How many grains in 2. How many pounds 14 Ib. 10 oz. 18 pwt. 22 gr. ? in 85894 gr. ? OPERATION....

Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - 1892 - 428 σελίδες
...186. Troy Weight is used 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. In weighing diamonds, pearls, and other lewels, the unit commonly employed is the carat, equal to 4...




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