1 6 MATER r A MEDIC A AND THERAPEUTICS. 



Collyria, Eye-washes. 



Gargarismata, Gargles, liquid preparations for 

 application to the fauces. 



Linctus, Linctuses, thin confections to be slowly 

 swallowed in small doses to affect the throat. 



Pessi, Pessaries, a small variety of suppositories 

 for administration per vaginam. 



Weights and Pleasures: Signs and Symbols. 



The weights of the British Pharmacopoeia are the 

 grain, granum; the ounce, uncia ; and the pound, 

 librum; with their conventional symbols, gr., 3, and 

 lb., respectively. 



The apothecaries' scale runs thus : 



1 grain granum, gr. i. ; 



437'5 grains = 1 ounce =z uncia, Jj. ; 



16 ounces = 1 pound = librum, Ib.i. 



It is very common, however, although not officinal, 

 to employ a weight between the grain and the ounce, 

 for the sake of convenience, called the drachm, 3, to 

 signify 60 grains; not. let it be observed, the ^th 

 part of an ounce, as in the fluid measures. 



A 20 -grain weight, called the scruple, 9, was 

 formerly in general use, but is now mostly discarded. 



Measures. The measures of the British Pharma- 

 copoeia and their symbols are the minim, minimum, 

 min., or mj the fluid drachm, drachma fluida, fl.dr., 

 or /5 ) the nu id ounce, uncia fluida, fl.oz., or f^ ; 

 the pint, octarium, O ; and the gallon, congius, C. 



The scale is : 



1 minim =. min.j., m_ j. 



60 minims = 1 fluid drachm, fl.dr.j.,/3j. 



8 fluid drachms 1 fluid ounce, fl.oz.j.,/jj. 

 20 fluid ounces rr 1 pint, i. 



8 pints 1 gallon, C j. 



