632 MEDICINES. 



glanders. We know that reacting horses sometimes develop out- 

 ward symptoms of glanders, during a course of ordinary doses of 

 mallein, after they have been tested even half a dozen times. 



Mercury. 



Biniodide of Mercury 

 is chiefly used in the form of absorbent ointment, which is usually 

 made as follows : — 



Biniodide of mercury ... ... ... 1 part. 



Lard or vaseline ... ... ... ... 4 to 8 parts. 



In hot climates, the amount of the vaseline or lard should be 

 double that used in cold countries. The irritating effect of binio- 

 dide of mercury passes ofi quicker than that of cantharides. 



The addition of 5 per cent, of the hydrochloride of morphine to 

 biniodide of mercury ointment, greatly diminishes the irritation 

 which that application sets up. 



Cadeac states that the antiseptic action of biniodide of mercury 

 is 34 times greater than that of corrosive sublimate. He recom- 

 mends its use in the following antiseptic solution : — 



Biniodide of mercury ... ... ... ... 1 part. 



Alcohol 200 parts. 



Water 10,000 „ 



This solution has the advantage of not hurting the hands or 

 instruments. 



Mercury, Chloride of (Calomel), 

 is useful as an application for thrush ; and to increase the pur- 

 gative effect of aloes, for which object 60 grains of calomel may 

 be given. 



Mercury, Per chloride of (Corrosive Sublimate). 

 See p. 68. It is a deadly poison. 



Nitrate of Mercury Ointment (Citrine Ointment). 

 The strong ointment, diluted with three or four times its weight 

 of lard, vaseline, or lanoline, is a very useful application in cases 

 of cracked heels and other inflammations of the skin. 



Morphine (Morphia) 



is one of the active principles of opium, which it resembles in its 

 effects. A solution of from 3„ up to 10 grains in extreme cases, 

 ma}" be injected subcutaneously. 



