Materia Medica. 123 



4. Nitrate ol silver, \ gr. Crumb of bread, enough to 

 make a small pill, to be given twice a day, or divided 

 according to the size of the dog. 



5. Astringent Wash for the Eyes. — Sulphate of zinc, 

 5 to 8 grs. ; water, 2 oz. Mix. 



6. Goulard extract, i drm. ; water, i oz. Mix. 



7. Nitrate of silver, 2 to 8 grs. ; water, i oz. Mix. 



8. Wash for the Penis. — Sulphate of zinc, 6 to 10 grs.; 

 water, i oz. Mix. 



9. Chloride of zinc, \ to i J gr. ; water, i oz. Mix. 



10. Astringent Ointment for Piles. — Gallic acid, 10 

 grs. ; goulard extract, 15 drops ; lard, i oz. Mix. 



Blisters. — Blisters are irritant applications designed to 

 produce inflammatory action in the skin. Their action, 

 when continued, is attended with the formation of vesicles, 

 or bladders, by which deeper-seated disease is overcome. 

 They are also known as counter-irritants. Prompt rising 

 of the blister is essential to successful treatment \ if these 

 results are delayed or absent, the original disease proves 

 refractory, and fatal issues may be expected. 



1. Fluid Blister. — Olive oil, 20 parts; powdered 

 cantharides, i part. Mix, and heat in a water bath for 

 2 hours, then stand aside to cool. The fluid is then se- 

 parated by straining through fine muslin, after which add 

 2 drms. of oil of origanum. Apply a small quantity, and 

 rub well into the skin before the application is repeated, 

 otherwise the fluid will gravitate to lower portions and 

 produce unnecessary irritation. 



2. Blistering Oi?itmeiit. — Powdered cantharides, i part ; 

 pure lard, 8 parts. Mix. This should be prepared 

 sometime before use. 



3. Powerful and immediate action, when called for in 

 severe inflammation of important organs, may be induced 

 by the application of a rag saturated in spirit of turpen- 

 tine, or solution of ammonia, which should be covered 

 with a piece of oil-skhi or paper, and closely applied. 



4. Mild Blister Ointtnent (counter-irritant). — Hog's 

 lard, 4 oz. ; Venice turpentine, i oz. ; powdered can- 

 tharides, 6 drms. Mix, and spread. 



5. Stronger Blister (9/«/w^«/ (counter-irritant). — Spirit 



