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

The Arithmetic Help, for Pupils, Teachers, Business Men

Alvord D. Robinson - Arithmetic - 1902 - 570 pages
...pounds = 1 long ton TROY WEIGHT. Troy weight is used in weighing the precious metals and jewels. TABLE. 24 grains (gr.) = 1 pennyweight (pwt.) 20 pennyweights...12 ounces — 1 pound (Ib.) APOTHECARIES' WEIGHT. This is used in mixing and selling medicines not liquid. Druggists generally buy by avoirdupois and...

Essentials of Arithmetic

David Martin Sensenig, Robert Franklin Anderson - Arithmetic - 1902 - 376 pages
...gold, silver, platinum, and jewels, except precious stones. The standard unit is the TROY POUND. TABLE. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (Ib.). lib. = 12oz. = 240 pwt. = 5760 gr. Note. The unit of weight for precious stones is the Carat, which...

A Textbook on Steam Engineering, Volume 1

Engineering - 1902 - 514 pages
...be considered 1 ton, unless the long ton (2,240 pounds) is especially mentioned. TROY 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,...

A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and Zinc, Volume 1

International Correspondence Schools - Arithmetic - 1902 - 794 pages
...considered one ton, unless the long ton (2,240 pounds) is especially mentioned. TROY WEIGHT. TABLE 10. 24 grains (gr.) = 1 pennyweight .... pwt. 20 pennyweights = 1 ounce oz. 12 ounces = 1 pound Ib. Ib. oz. pwt. gr. 1 = Id - -J40 = 5,760 214. Troy weight is used in weighing gold and silverware, jewels,...

Modern Commercial Arithmetic

Frank Joseph Schneck - Business mathematics - 1902 - 288 pages
...ton. T. T. cwt. Ib. oz. 1 = 20 = 2000 = 32000 Troy Weight 133. Troy weight is used by jewelers. TABLE 24 grains (gr.) = 1 pennyweight, pwt. 20 pennyweights = 1 ounce. oz. 12 ounces = 1 pound. Ib. Ib. 1 = oz. 12 = pwt. gr. 240 = 5760 Scale.—12, 20, 24. Apothecaries' Weight 134. Apothecaries' weight...

George Edward Atwood - Arithmetic - 1902 - 168 pages
...32 Ib. 1 barrel of pork = 200 Ib. 1 bushel of barley = 48 Ib. 1 keg of nails = 100 Ib. TROY WEIGHT 24 grains (gr.) . . = 1 pennyweight . pwt. 20 pennyweights...ounce . . . oz. 12 ounces . . . . = 1 pound . . . Ib. One pound Troy = 5760 grains. APOTHECARIES' WEIGHT 60 grains (gr.) . . = 1 dram . . dr., or 3. 8 drams...

George Edward Atwood - Arithmetic - 1902 - 168 pages
...32 lb. 1 barrel of pork = 200 lb. 1 bushel of barley = 48 lb. 1 keg of nails = 100 lb. TROY WEIGHT 24 grains (gr.) . . = 1 pennyweight . pwt. 20 pennyweights.... = 1 ounce . . . oz. 12 ounces . . . . = 1 pound . . . lb. One pound Troy = 5760 grains. APOTHECARIES' WEIGHT 60 grains (gr.) . . =1 dram . . dr., or...

The Model Elementary Arithmeti:c: Oral and Written, Part 2

Edward Gideon - Arithmetic - 1902 - 182 pages
...denominations of Troy weights are grain, pennyweight, ounce, and pound. Table. &4 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights " 1 ounce, oz. 12 ounces " 1 pound, Ib. 1 Ib. = 1% oz. = %40 pwt. = 5760 gr. II. AVOIRDUPOIS WEIGHTS. Avoirdupois Weights are used in weighing...