230 ADVANCED LESSONS IN PRACTICAL PHYSIOLOGY 



. _ Approximate 



Noteworthy Terms: equivalent.' 



1 ounce avoirdupois 437.5 grains 



1 ounce troy 480.0 grains 



1 fluidounce of water (the standard of volume) 455.7 grains 



1 pound avoirdupois is 7000.0 grains 



1 pound troy is 5760.0 grains 



1 minim of water weighs ^jj^- grains = 0.95 grain = 61.61 mg. 



15 grains of water = 16 minims; 1 grain of water measures 



1.05 minims = 0.0648 c.c. 

 An imperial pint is 20 ounces; a United States pint is 16 ounces. 



EXACT EQUIVALENTS OF METRIC AND APOTHECARIES' WEIGHTS 

 AND MEASURES ACCORDING TO THE U. S. PHARMACOPCEIA 



T , , Approximate 



Volume: equivalent. 



1 c.c 16.23 minims 



1 liter (1000 c.c.) 33.8 oz. 



1 minim (115) 0.061 c.c. 



1 fluidram (3) 3.696 c.c. 



1 fluidounce (3) 29.57 c.c. 



1 pint (O) 473.18 c.c. 



Weight: 



1 milligram, 0.001 (mg.) 0.0154 grain 



1 centigram, 0.01 (eg.) 0.1543 grain 



1 decigram, 0.1 (dg.) 1.543 grains 



1 gram, 1.0 (gm.) 15.4324 grains 



30 grams, 30.0 462.9 grains 



31 grams 478.4 grains 



1 grain (gr.) 0.065 gm. 



10 grains 0.648 gm. 



15 grains 0.972 gm. 



1 scruple (3) 1.296 gm. 



1 dram (5). 3.89 gm. 



1 ounce troy (5) 1 . 31.1 gm. 



1 ounce avoirdupois 28.35 gm. 



