Characters and Abbreviations 193 



We sometimes wish to reduce a symhol as used by dox^tors and drug- 

 gists to common terms. 



Below are symbols and their meanings as written often. 



Gr. 1 — grains 1. 

 9 1 — scruple 1. 

 5 1 — drams 1. 

 5 1 — ounces 1. 

 M. or Minum 1 — drops 1. 

 F 3 1 — fluid drams 1. 

 1 — pints 1. 

 C or Cong — gallons 1. 



Mil. is the abbreviation for Millilitre or cubic centimteter. 

 C. C. stands for cubic centimeter. 

 4 C. C. equals about 1 teaspoonful. 

 Sig. stands for directions or times to be taken. 

 R. X. — take though. 

 A. A. — same as above. 



Q. S. means sufficient, as sufficient water for dough. 

 F. E. means fluid extract. 

 T means 1 as drams T. 

 S. S. means one half. 



An example of the use of above formulae's is given in the follow- 

 ing prescription. 



Wlilte Lotion 

 Lead Acetate 5 T equal (1 ounce) 

 Zinc Sulphate 3 VL equal (6 drams.) 

 Sig. — apply 2 times daily. 



LIQUID MEASURE 



1 minim equals 1 drop. 



1 fluid drachm equals 60 minims or drops. 



1 fluid ounce equals 8 fluid drachms or 480 drops. 



1 pint equals 20 fluid ounces or 9600 drops. 



1 c cm. (cubic centimeter) or millitire equals 1 gram of water. 



8 pints, 1 gallon 



