 | John William McClymonds, David Rhys Jones - Arithmetic - 1907 - 352 pages
...and grain are the same as in troy weight, but the ounce is subdivided differently. 20 grains (gr.) = 1 scruple . . . sc. or 3 3 scruples = 1 dram . . . dr. or 3 8 drains = 1 ounce . . . oz. or § 12 ounces = 1 pound . . . Ib. or ft 397. Apothecaries' Liquid Measures.... | |
 | Bruce Mervellon Watson, Charles Edward White - Arithmetic - 1908 - 432 pages
...think of the weight of a grain of wheat or rice. 172. TABLE OF APOTHECARIES' WEIGHT 20 grains (gr.) = 1 scruple (sc. or 3). 3 scruples = 1 dram (dr. or 3). 8 drams = 1 ounce (oz. or % ). This table is used by druggists and physicians in compounding medicines; but medicines are bought... | |
 | Bruce Mervellon Watson, Charles Edward White - Arithmetic - 1908 - 454 pages
...weight of a grain of wheat or rice. 172. TABLE OF APOTHECARIES' WEIGHT 20 grains (gr.) = 1 scruple (so. or 3). 3 scruples = 1 dram (dr. or 3). 8 drams = 1 ounce (oz. or S ). This table is used by druggists and physicians in compounding medicines; but medicines are bought... | |
 | Samuel Hamilton - Arithmetic - 1909 - 530 pages
...ounce = 480 grains Apothecaries' Weight This is used only in filling medical prescriptions. 20 grains = 1 scruple — sc. or 3 3 scruples = 1 dram — dr. or 3 8 drams = 1 ounce — oz. or 5 12 ounces =1 Ib. or Ib Counting 12 things = 1 dozen (doz.) 12 dozen = 1 gross (gro.) 12 gross = 1... | |
 | Jacob William Albert Young, Lambert Lincoln Jackson - Arithmetic - 1909 - 282 pages
...yard = 1 load (of earth, etc.) 24f cubic feet = 1 perch (stone) Apothecaries' Weight 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.) 5760 grains = 1 pound The table of apothecaries' weight is used by pharmacists... | |
 | Samuel Hamilton - Arithmetic - 1909 - 398 pages
...Apothecaries' Weight This is used only in filling medical prescriptions. 20 grains = 1 scruple — so. or 3 3 scruples = 1 dram — dr. or 3 8 drams = 1 ounce — oz. or J 12 ounces =1 Ib. or ft Counting 12 things = 1 dozen (doz.) 12 dozen = 1 gross (gro.) 12 gross = 1... | |
 | Gordon Augustus Southworth, John Charles Stone - Arithmetic - 1910 - 176 pages
...ounce i 7000 " = 1 pound! 480 " =1 ounce i 5760 " = 1 pound / y ' Apothecaries' Weight. 20 grains = 1 scruple (sc. or 3) 3 scruples = 1 dram (dr. or 3 ) 8 drams = 1 ounce (oz. or J ) 12 ounces ) c-rarv - > = 1 pound (lb. or ft.) 5760 grains i v ' Length. . 12 'inches (in.) = 1... | |
 | Gordon Augustus Southworth, John Charles Stone - Arithmetic - 1910 - 188 pages
...(sq. rd.) 160 square rods -5 1 . . 43,560 square feet/ ~ aure ( ° Apothecaries'° Weight. 20 grains = 1 scruple (sc. or 3) 3 scruples = 1 dram (dr. or 3 ) 8 drams = 1 ounce (oz. or 5 ) 12 ounces i 5760 grains [ = 1 Po™d (Ib. or Ib.) „,„ f 1 square mile 640 acres ={ ^ ^ 1 square... | |
 | John William McClymonds, David Rhys Jones - Arithmetic - 1910 - 336 pages
...and grain are the same as in troy weight, but the ounce is subdivided differently. 20 grains (gr. ) = 1 scruple . . . sc. or 3 3 scruples = 1 dram . . . dr. or 3 8 drams = 1 ounce . . . oz. or 5 1 2 ounces = 1 pound . . . Ib. or ft 397. Apothecaries' Liquid Measures. 60 drops (gtt.) or minims... | |
 | John William McClymonds, David Rhys Jones - Arithmetic - 1910 - 332 pages
...and grain are the same as in troy weight, but the ounce is subdivided differently. 20 grains (gr.) = 1 scruple . . . sc. or 3 3 scruples = 1 dram . . . dr. or 3 8 drains = 1 ounce . . . oz. or J 12 ounces = 1 pound . . . Ib. or ft 397. Apothecaries' Liquid Measures.... | |
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Weight This is used to. some extent in filling prescriptions. The grain, ounce, and pound are the same as in troy weight, but the ounce is divided differently. 20 grains (gr.) = 1 scruple . . . sc. or 3 3 scruples = 1 dram . . . dr. or 3 8 drams = 1 ounce... 
