Books Books
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
Standard Elementary Arithmetic: Combining Oral and Written Exercises - Page 154
by Edward Sylvester Ellis - 1886 - 192 pages

## Handbook of Mathematics for Engineers and Engineering Students

Joseph Claudel - Mathematics - 1906 - 758 pages
...248. Troy weight is used in weighing precious stones and metals, such as gold, silver, etc. Table 21 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 249. Comparative Table Avoirdupois Apothecaries' Troy 1 pound = 7000 gr. 5760 gr. 5760 gr. 1...

## The New Business Arithmetic: A Treatise on Commercial Calculations

Orville Marcellus Powers - Business mathematics - 1906 - 384 pages
...Troy Weight is used in weighing gold, silver and other precious metals. TABLE 24 grains (gr.) make 1 pennyweight. . .pwt. 20 pennyweights " 1 ounce oz. 12 ounces " 1 pound Ib. In addition to the above, the following, called Diamond Weight, is used in weighing diamonds and other...

## The New Business Arithmetic: A Treatise on Commercial Calculations

Orville Marcellus Powers - Business mathematics - 1906 - 384 pages
...Troy Weight is used in weighing gold, silver and other precious metals. TABLE 24 grains (gr.) make 1 pennyweight. . .pwt. 20 pennyweights " 1 ounce oz. 12 ounces " 1 pound Ib. In addition to the above, the following, called Diamond Weight, is used in weighing diamonds and other...

## The Practical Arithmetic: Oral and Written

Frank H. Hall - Arithmetic - 1907 - 364 pages
...the rye at 52 cents a bushel. Troy weight is used in weighing gold, silver, and jewels. Troy Weight 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights...(oz.). 12 ounces = 1 pound (Ib.). Apothecaries' weight is used in mixing medicines and in selling them at retail. Apothecaries' Weight 20 grains (gr.) = 1...

## Intermediate Arithmetic

Bruce Mervellon Watson, Charles Edward White - Arithmetic - 1907 - 274 pages
...what per cent of the value of a \$ 10 gold piece ? Of a \$ 20 gold piece ? 222. TABLE OF TROY WEIGHT 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (Ib.). These weights are used in weighing gold, silver, and some jewels. To get an idea of the weight of a...

## Progressive Arithmetic, Complete, Books 2-3

William James Milne - Arithmetic - 1907 - 616 pages
...ounce, or 24 grains, is called a pennyweight. These related weights form the table of troy weight. 24 grains (gr.) = 1 pennyweight, pwt. 20 pennyweights = 1 ounce, oz. 12 ounces = 1 pound, Ib. In writing prescriptions physicians often use these units: 20 grains = 1 scruple 3 scruples = 1 dram...

## Hopkins and Underwood's New Arithmetics: Advanced Book

John William Hopkins - Arithmetic - 1907 - 376 pages
...ream 12 gross = 1 great gross 2 reams = 1 bundle 20 units = 1 score 5 bundles = 1 bale TROY WEIGHT 24 grains (gr.) = 1 pennyweight (pwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (Ib.) 1 pound Troy = 5760 grains Troy weight is used in weighing precious metals and jewelry. EXERCISE 55...

## Telephone and Telegraph Engineers' Handbook: A Convenient Reference Book for ...

International Correspondence Schools - Telegraph - 1908 - 452 pages
...cwt. = 2,000 Ib. = 32,000 oz. = 14,000,000 gr. The avoirdupois pound contains 7,000 gr. TROY WEIGHT 24 grains (gr.) - 1 pennyweight pwt. 20 pennyweights = 1 ounce oz. 12 ounces =1 pound Ib. 1 Ib. = 12 oz. = 240 pwt. = 5,760 gr. DRY MEASURE 2 pints (pt.) = 1 quart qt. 8 quarts =1 peck pk....