Table of Approximately equivalent Weights and Measures, 

 (mil) 0.001 = 1/64 grain 

 0.01 = 1/6 grain 

 0.1 = 1 1/2 grains 

 1. = 151/2 (15.432) grains 

 ( 3.9) = 1 draehm 

 ( 31.1) = 1 ounce 

 (453.6) = 1 pound (av.) 



= 2.2 pounds (av.) (2.2946) 



^ .001 gram 

 = .01 gram 

 = 0.065 gram 

 = 1. gram 



= 4. (3.9) grams 

 = 31.1 gram^s 



= 0.61 mil 



= 1. mil. 



= 3.75 mils 



= 30. (29.572) mils 



= 500. (.4731 L. or 473 mils 



1 milligram 

 1 centigram 

 1 decigram 

 1 gram 

 4 grams 

 31 grams 

 500 grams 

 1 Kilogram 



1/64 grain 



1/6 grain 



1 grain 



15 1/2 (15.432) grains 



1 drachm (apoth.) 



1 ounce (apoth.) 



1 minim 



16 minims (16.23) 



1 fluidrachm 



1 fluidounce 



1 pint 



= 15-16 minims or grains 

 = 1 fluidrachm or drachm 

 = 1 fluidounce or ounce. 



The following table of approximate equivalents should be 

 memorized : 



1 mil. 

 1 gram 

 4 mils. 

 4 grams 

 30 mils 

 30 grams 

 500 mils , . 



500 grams = ^ P^^* ^ Po^^^*! 



1 Liter = 1 quart 



1 Kgm. = 2.2 lbs. 



To convert grains into centigrams, multiply by 6.5. Thus 3 

 grains multiplied by 6.5 equals 10.5 centigrams, or 10 grains equal 

 65 centigrams or .65 grams. To convert centigrams into grains, 

 divide by 6.5. Thus 26 centigrams divided by 6.5 equals 4 grains. 



Weighing 



In weighing a body we simply balance the force it exerts by 

 its gravity against another kiiown force. There are several types 

 of balances or scales, spring, equal arm, unequal arm, and torsion. 



