PRESCRIPTION WRITING 



1 DECIMETER ORXoMETER 



cuae I 



■ICH. I 



EACH I 



Gram Gm. = 1 gram ^ 1.0 



Decigram dg. == l/lO gram = 0.1 



Centigram eg. = l/lOO gram = 0.01 



Milligram mg. = l/lOOO gram = 0.001 



The metric system has the advantage of being arranged decimally, 

 which makes the computation of percentages easy, and the transference 

 of a quantity of one denomination to that of another, by merely shifting 

 a, decimal point. There are other advantages which make it of value to 

 practitioners. Our present system is not uniform with that of any other 

 country. The English, while using the same nomenclature for weights 

 and measures, put a different value upon. them. The system has another 

 value, at least theoretically, in having one unit for weights and measures. 

 The unit of the fluid measure is 1 cubic centimeter of water, which at 4° 

 C. weighs one gram. As a matter of fact, fluids are dispensed in the 

 metric system by measuring them in cubic centimeters (abbreviation cc), 

 and if liquids were all of the same density as water, they would be equiv- 



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