20 grains (gr.) = 1 scruple (℈). 3 scruples (℈) = 1 dram (ʒ). 8 drams (ʒ) = 1 ounce (℥). 12 ounces (℥) = 1 pound (lb.). APOTHECARIES’ OR WINE MEASURE. 60 minims (m.) = 1 fluidram (fʒ). 8 fluidrams (fʒ) = 1 fluidounce (f℥). 16 fluidounces (f℥) = 1 pint (O). 8 pints (O). = 1 gallon (Cong.). APPROXIMATE FLUID MEASURES. 1 teaspoonful = 1 fluidram, or fʒj. 1 dessertspoonful = 2 fluidrams, or fʒij. 1 tablespoonful = 4 fluidrams, or fʒiv. 1 wineglassful = 2 fluidounces, or f℥ij. 1 teacupful = 4 fluidounces, or fʒiv. TABLES FOR PERCENTAGE OF SOLUTIONS. The following tables are sufficiently correct for practical purposes: APOTHECARIES’ MEASURE. +-----------------------+-------------------+-------------------+ | | For 1 ounce. | For 1 pint. | +-----------------------+-------------------+-------------------+ | | | | | 1 per cent. (1 : 100) | 5 M. or 5 grains |75 M. or 75 grains | | 2 “ (1 : 50) | 10 “ 10 “ | 2½ drams | | 3 “ (1 : 33) | 15 “ 15 “ | 3¾ “ | | 4 “ (1 : 25) | 19 “ 19 “ | 5 “ | | 5 “ (1 : 20) | 24 “ 24 “ | 6½ “ | |10 “ (1 : 10) | 48 “ 48 “ | 13 “ | +-----------------------+-------------------+-------------------+ | | For 1 quart. | For 1 gallon. | +-----------------------+-------------------+-------------------+ | | | | | 1 per cent. (1 : 100) | 2½ drams |10 drams | | 2 “ (1 : 50) | 5 “ | 2½ ounces | | 3 “ (1 : 33) | 7½ “ | 3 oz. and 6 drams | | 4 “ (1 : 25) | 10 “ | 5 ounces | | 5 “ (1 : 20) | 13 “ | 6 oz. and 4 drams | |10 “ (1 : 10) | 26 “ |13 ounces | +-----------------------+-------------------+-------------------+