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Weight is used by apothecaries and physicians in compounding dry medicines. TABLE. 20 Grains (gr.} = 1 Scruple, . . sc., or 3. 3 Scruples = 1 Dram, . . dr., or 3 . 8 Drams = 1 Ounce, . . oz., or § . 12 Ounces = 1 Pound, . . Ib., or ft,.
A Course of Mathematics: In Two Volumes. For the Use of Academies, as Well ... - Page 25
by Charles Hutton - 1818

## Numbers, and how to Use Them: by the Natural Method: A Complete, Practical ...

John Fenner Brown - Arithmetic - 1892 - 184 pages
...lbs. 11 oz. 24 90 72 18 gr. Ans. 7 Ibs. lloz. 13 dwt. 18 gr. APOTHECARIES' WEIGHT. 20 grains (gr.) = 1 scruple (sc. or 3). 3 scruples = 1 dram (dr. or 3). 8 drams =• 1 ounce (oz. or 5 )• 12 ounces = 1 pound (lb.). The pound, ounce, and grain are the same as those of Troy weight....

## Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 428 pages
...for prescriptions, but medicines are bought and sold by avoirdupois weight. TABLE. 20 Grains (gr.) = 1 Scruple . . . sc., or 3 3 Scruples = 1 Dram . . . . dr., or 3 8 Drams = 1 Ounce . . . oz., or 5 12 Ounces = 1 Pound . . . Ib. , or Ib Apothecaries' Liquid Measure is used in compounding and measuring...

## Standard Arithmetic: Embracing a Complete Course for Schools and Academies

William James Milne - Arithmetic - 1892 - 440 pages
...and physicians in weighing medicines for prescriptions. TABLE. 20 Grains (gr.) = 1 Scruple . . . so., or 3 3 Scruples = 1 Dram .... dr., or 3 8 Drams = 1 Ounce . . . oz. , or % 12 Ounces = 1 Pound . . . lb., or lb lb. oz. dr. sc. gr. 1 = 12 = 9(i = 288 = 5700 Scale. — 12,...

## Elements of Arithmetic: For Primary and Intermediate Classes in Public and ...

William James Milne - Arithmetic - 1893 - 250 pages
...prescriptions Apothecaries' Weight is used by apothecaries and physicians TABLE. 20 grains (gr.) = 1 scruple (sc., or 3). 3 scruples = 1 dram (dr., or 3). 8 drams = 1 ounce (oz., or 5)12 ounces = 1 pound (lb., cr lb). EXERCISES. 1. How many gr. are there in 3 sc. ? In4sc. ? In5£sc....

## Selected Words for Spelling

Clarence Edmund Meleney - 1894 - 182 pages
...oz. 12 ounces . ... . 1 pound, ... 16. APOTHECARIES' AVEIGHT. Used in weighing drugs. 30 grains, gr., make . . 1 scruple, . . sc. or 3 3 scruples 1 dram, . . dr. or 3 8 drams 1 ounce, . . oz. or § 12 ounces 1 pound, . . Ib. or ft UNITS OF TIME. 60 seconds, sec. make . 1 minute in. 60 minutes...

## A Commercial Arithmetic: Designed for Academies, High Schools, Counting ...

James Bates Thomson - 1894 - 342 pages
...Weight is used by apothecaries in mixing Medicines. TABLE. 20 grains lgr.) — 1 scruple, . . «c., or 3. 3 scruples = 1 dram, . . . dr., or 3. 8 drams = 1 ounce, . .. . oz. , or § . 12 ounces = 1 pound, . . . Ib., or J,. NOTES. — 1. The pound, ounce, and grain are the same...

## For sixth, seventh, and eighth grades

George Edward Atwood - Arithmetic - 1894 - 396 pages
...Weight is used by druggists in weighing medicines not liquid. 20 grains =1 scruple . . . sc. or J) 3 scruples . . . . = 1 dram .... dr. or 3 8 drams =1 ounce . . . . oz. or g 12 ounces . . . . = 1 pound . . . Ib. 154. One pound Avoirdupois = 7000 grains. 155. One pound Troy...

## Arithmetic by Grades for Inductive Teaching, Drilling and Testing, Book 7

John Tilden Prince - 1894 - 120 pages
...penny weight (pwt.) 20 pennyweights=l ounce (oz.) 12 ounces —1 pound (Ib.) 1 pound —"i7(iO grains. 3 scruples = 1 dram (dr. or 3) 8 drams = 1 ounce (oz. or § ) 12 ounces = 1 pound (Ib. or Jfe) 1 pound = 5760 grains. Apothecaries Weight. 20 grains (gr.) =...