ASTRlN'GilNTS. 85 



ored glass bottles and protected from the light. The 

 fused nitrate of silver is prepared by melting AgNO^ 

 at a low temperature, treating with HCl, and pouring 

 the melted mass into suitable moulds. Nitrate of sil- 

 ver is incompatible with organic matter, soluble chlo- 

 rides, most mineral acids and their salts, alkalies and 

 their carbonates, lime-water, and astringent infu- 

 sions. It is always best given dissolved in distilled 

 water. Dose: H., gr. ij.-x. ; D., gr. i-i. 



Physiological Action. — Externally, ifritant, 

 corrosive, caustic, astringent, antiseptic; internally, 

 astringent and nerve tonic. Its continued internal 

 administration produces gasto-intestinal catarrh, 

 uraemia, albuminuria, emaciation, fatty degeneration 

 of heart, liver, and kidneys, hemorrhages, impaired 

 nerve functions, and death by paralysis of respira- 

 tory centres. A single large dose causes violent gas- 

 tro-enteritis and ulceration of the stomach. A course 

 of silver treatment should not exceed four or five 

 weeks, and must be followed by purgatives and diure- 

 tics to assist in its elimination, else silver poisoning 

 may result. 



Therapeutics. — Chronic nerve troubles of dogs, 

 such as chronic paralysis, epilepsy, chorea; chronic 

 spinal affections causing locomotor ataxia or para- 

 plegia. In diarrhoea and dysentery with or without 

 opium, especially if chronic ; also in chronic gastritis. 

 In purpura in the horse it should find universal use. 

 Locally to destroy fungoid growths, warts, to stimu- 

 late indolent wounds and ulcers, to slough out fistu- 

 IsB, as in quittor. In solution to foot-rot of sheep 



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