APPROXIMATE EQUIVALENTS OF METRIC AND STANDARD MEASURES OF LENGTH. 1 meter = 39.37 inches. 1 centimeter = ⅖ inch. 5 centimeters = 2 inches. 30.5 centimeters = 12 “ 1 millimeter = ¹/₂₅ inch. 25 millimeters = 1 “ METRIC WEIGHTS. 1 gram (Gm.) = weight of 1 cubic centimeter of water. 1 decigram (dg.) = one-tenth, 0.1, or ¹/₁₀ of a gram. 1 centigram (cg.) = one-hundredth, 0.01, or ¹/₁₀₀ of a gram. 1 milligram (mg.) = one-thousandth, 0.001, or ¹/₁₀₀₀ of a gram. 1 Decagram (Dg.) = 10 grams. 1 Hectogram (Hg.) = 100 grams. 1 Kilogram (Kg.) = 1000 grams. APPROXIMATE EQUIVALENTS OF METRIC AND APOTHECARIES’ WEIGHTS. 0.001 gram = ¹/₆₄ grain. 0.002 “ = ¹/₃₂ “ 0.008 “ = ¹/₈ “ 0.01 “ = ¹/₆ “ 0.065 “ = 1 “ 0.1 “ = 1.5 grains. 0.2 “ = 3 “ 0.5 “ = 7.7 “ 1.0 “ = 15.4 “ 10.0 grams = 154 “ 100.0 “ = 1543 “ ¹/₁₀₀ grain = 0.00065 gram. ¹/₅₀ “ = 0.0013 “ ¹/₃₀ “ = 0.002 “ ¹/₂₀ “ = 0.003 “ ¹/₁₀ “ = 0.0065 “ ¹/₈ “ = 0.008 “ ¹/₄ “ = 0.016 “ ¹/₂ “ = 0.03 “ 1 “ = 0.065 “ 10 “ = 0.65 “ 15 “ = 1.0 “ METRIC MEASURES OF CAPACITY. 1 liter (l.) = the measure of 1000 grams of water. 1 deciliter (dl.) = ¹/₁₀ or 0.1 of a liter, or 100 cubic centimeters. 1 centiliter (cl.) = ¹/₁₀₀ or 0.01 of a liter, or 10 cubic centimeters. 1 milliliter (ml.) = ¹/₁₀₀₀ or 0.001 of a liter, or 1 cubic centimeter (c.c.). 1 decaliter (Dl.) = 10 liters. 1 hectoliter (Hl.) = 100 liters. APPROXIMATE EQUIVALENTS OF METRIC AND APOTHECARIES’ MEASURES OF CAPACITY. 1 liter = 2 pints. 1000 c.c. = 2 pints. 100 c.c. = 3.4 fluidounces. 30 c.c. = 1 fluidounce. 10 c.c. = 2.7 fluidrams. 1 c.c. = 16 minims. 1 minim = 0.06 c.c. 10 minims = 0.6 c.c. 20 minims = 1.25 c.c. 30 minims = 2.0 c.c. 1 fluidram = 3.75 c.c. 2 fluidrams = 7.5 c.c. 1 fluidounce = 30.0 c.c. 16 fluidounces = 474 c.c. APOTHECARIES OR TROY WEIGHT.