94 DISEASES OF HORSES AND CATTLE. 



fourth day, we fmd the animal requires stimula- 

 tion and the best is one ounce tincture of ginger, 

 gentian, and chloride of iron, given at one dose, 

 in a pint of water, two or three times a day. Con- 

 tinue the potassium, as it will keep the kidneys ac- 

 tive, which is particularly necessary in pleurisy. 

 If the animal improves, continue this treatment; 

 but if effusion is taking place it will be necessary 

 to give, besides the above, one dram of iodide of 

 potassium once daily in the drinking water. Give 

 good food and improve the appetite by giving one 

 dram sulphate of quinine with fifteen or twenty 

 drops of nitric acid in a quart of gruel. If liquid 

 has formed in the chest as the result of the disease, 

 give five grains powdered cantharides, and digi- 

 talis twenty to thirty grains, twice a day. Con- 

 tinue the tincture of ginger, gentian and chloride 

 of iron. Repeat the blister to the chest if the skin 

 is not broken by the previous one. If the fluid 

 still keeps accumulating it will be necessary to tap 

 the animal. This is done by cutting the skin be- 

 tween the eighth and ninth rib and pushing a small 

 trocar and canula into the cavity, then draw out 

 the trocar, leaving the canula in and the fluid will 

 run out. After the fluid has been removed it will 

 be useful to give the horse half a pint of good 

 whisky as a stimulant. It is not necessary to re- 

 move all the fluid — as this cannot be easily done. 

 The opening made into the chest should not be too 

 low, about midway between the superior surface 

 of the fluid and the bottom of the chest. This oper- 

 ation will often have to be repeated as the fluid 



