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TROY WEIGHT is used in weighing gold, silver, and precious stones. TABLE. 24 Grains (gr.) make 1 Pennyweight, dwt.
The Common School Arithmetic ... - Page 64
by James S.. Eaton - 1877 - 351 pages

The Pupils' Arithmetic, Book 4

James Charles Byrnes, Julia Richman, John Storm Roberts - Arithmetic - 1911 - 264 pages
...pounds = 1 gross or long ton (LT) An ounce avoirdupois weighs 437^ Troy grains Troy Weight 24 grains = 1 pennyweight (dwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (lb.) 5760 grains = 1 pound An ounce Troy weighs 480 Troy grains Apothecaries' Weight 20 grains (gr.)...

Charles W. Morey - Arithmetic - 1911 - 454 pages
...ft. by 27 ft. How many cubic feet in the walls which are 9 ft. high and \\ ft. thick ? TROY WEIGHT Troy weight is used in weighing gold, silver, and precious stones. TABLE OF TROY WEIGHT 24 grains (gr.) = 1 pennyweight (pwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1...

Buker-Felter Arithmetics, Book 3, Parts 1-2

Eva F. Buker - 1915 - 436 pages
...= 7000 grains, Troy weight. 1 oz. avoir. = 437i grains, Troy weight. Troy Weight 24 grains (gr.) = 1 pennyweight (dwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (Ib.) Apothecaries' Weight Apothecaries' Liquid Measure 20 grains (gr.) = 1 scruple (sc. or 3) 60 minims...

Coal Miners' Pocketbook: Formerly The Coal and Metal Miners' Pocketbook ...

Thomas J. Foster - Coal mines and mining - 1916 - 1230 pages
...pounds, is the same. TROY WEIGHT Troy weight is used in weighing gold and silver. 24 grains (gr.) = 1 pennyweight dwt. 20 pennyweights =1 ounce . . .oz. 12 ounces = 1 pound Ib. gr. dwt. oz. tb. 1 = .041667 = .002083 = .000174 24= 1 = . 050000 = .004167 480= 20= l-=. 083333 5,760=...

Text-book on Navigation and Nautical Astronomy

James Gill - Nautical astronomy - 1918 - 466 pages
...quarter (qr.). 4 quarters = 1 hundredweight (cwt.). 20 hundredweights = 1 ton. Troy. 24 grains (gr.) = 1 pennyweight (dwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound. 7000 grains Troy = 1 lb. Avoirdupois. Lineal. 12 inches (in.) = 1 foot (ft.). 3 feet = 1 yard (yd.)....

Practical Exercises in Commercial Arithmetic

Business mathematics - 1919 - 190 pages
...weighing articles used in scientific experiments, etc. The unit is the pound. TABLE. 24 Grains (Gr.) = 1 Pennyweight . . dwt. 20 Pennyweights = 1 Ounce . . . . oz. 12 Ounces = 1 Pound . . . . Ib. NOTE. — Diamond Weight is used in weighing precious stones. The unit is the carat, which equals about...

The Concise Standard Dictionary of the English Language: Designed to Give ...

English language - 1918 - 598 pages
...qr. = 2S Ibs. Troy Weight (used in weighing gold, silver, and precious stones) . 24 grains (gr.) = 1 pennyweight (dwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (It).). NOTE.— I Ib. troy= 5,700 grains. In weighing diamonds 1 carat=3.1G8 troy grains, and is divided...

Manual of Cyanidation

Edward Montague Hamilton - Cianuracion - 1920 - 308 pages
...1 pound (Ib.) 100 pounds 1 hundredweight (cwt.) 20 cwt. (2000 Ib.) 1 ton (T.) Troy Weight 24 grains 1 pennyweight (dwt.) 20 pennyweights 1 ounce (oz). 12 ounces 1 pound (Ib.) 1 Ib. Troy 5760 grains 14.5833 oz. Troy 1 Ib. avoirdupois 29,166.6 oz. Troy 2000 Ib. avoirdupois Liquid...