Apothecaries’ Fluid Measure.

Gallon (C) = 8 pints (O); 1 pint = 20 fluid ounces (oz. weight of water). Ounce (f ℥) = 8 drachms (f ʒ) = 480 minims (♏) = 720 drops (gtt.).

One wine glass = 4 tablespoonfuls = 16 tablespoonfuls = 2 ounces.

Symbols.—f. or fl. fluid; s.s. one half; a.a. for each. Thus f℥ss. ½ a fluid ounce.

Apothecaries’ weight, formerly used for dispensing medicines, superseded in 1864. 20 grains = 1 scruple; 3 scruples = 1 drachm; 8 drachms = 1 ounce; 12 ounces = 1 lb. (troy).

Liquid Measure.
Cubic in. nearly.
4 gills= 1 pint=34¾
2 pints= 1 quart=69⅓
4 quarts= 1 gallon= 277·123

FRENCH WEIGHTS AND MEASURES.

Weights.
Gramme15·432349 grams troy.
Décagramme (= 10 grammes)5·6438 drachms av.
Hectogramme (= 100 grammes)3·527 oz. av.
Kilogramme (= 1000 grammes)2·204621 lbs. av., or
2·679227 lbs. troy.
Quintal (= 100 kilogrammes)220·462 lbs. av.
Tonne (= 1000 kilogrammes)2204·621 lbs. av.
Decigramme (= ¹∕₁₀th of a gramme)1·5432 grain.
Centigramme (= ¹∕₁₀₀th of a gramme)0·15432 grain.
Milligramme (= ¹∕₁₀₀₀th of a gramme)0·015432 grain.