Tables Of Weights And Measures Apothecaries' Troy Weight

Libra.

Uncia.

Drachma.

Scrupulus.

Granum.

Pound.

Ounce.

Drachm.

Scruple.

Grain.

lb. 1

12

96

288

5760

3 1

8

24

480

3 1

3

60

Э I

20

Apothecaries' Or Wine Measure

Congius.

Octarius.

Fluiduncia.

Fluidrachma.

Minimun.

Gallon.

Pints.

Fluidounce,

Fluidrachms.

Minims.

Cong. I

8

128

Io24

61440

0 1

16

128

7680

f 3 1

8

480

f 3 1

m 60

Avoirdupoise Weight

Pound.

Ounces.

Drachms.

Troy Grains.

lb. 1

16

256

7000

Oz. I

16

437.5

dr. 1

27.34375

Approximate Measure

A drop - usually about 1 m. A teaspoonful - 60 drops, f 3j. A dessertspoonful - f 3 ij. A tablespoonful - f 3 ss. A wineglassful - f 3 ij. A teacupful - f 3 iv.

Symbols Or Signs Used In Prescriptions

e. Minim, 1-60 of a "fluid drachm, gtt. Gutta, a drop; guttae, drops. Эj. Scrupul vel scrupulum, a scruple, 20 grains.

3j. Drachma, a drachm, 60 grains. f 3 . Fluid drachm, a fluid or measured dram. 3 j. Uncia, a troy ounce, 480 grains, f 3 j. Fluid uncia, a fluid ounce, lbj. Libra, a pound, 5,760 grains. Oj. Octarius, a pint.

gr. Granum, a grain; plural, graua grains, ss. Semis, half, affixed to signs as above.

Subdivision

Latin

Milli (from Millesimus), meaning a thousandth - 0.001 Centi (from Centesimus), meaning a hundredth- 0.01 Deci (from Decimus) meaning a tenth