104 DISEASES OF SHEEP. 



nothing, walks behind the vest of the flock, keeps its feet 

 far apart, and finally falls to the ground, A\here it remains 

 for a short time as in a swoon. It then gets up again, fol- 

 lows the flock and has again the appearance of a healthy- 

 sheep. These fits return after a time, sometimes sooner and 

 sometimes later. Staggers much resemble vertigo, and are 

 easily confounded with it, although their causes and true 

 nature are widely different. 



The causes of staggers are generally full-bloodedness and 

 a considerable rush of blood to the head. The disease 

 often appears when the animal sheds its teeth, and is seen 

 only in well-fed sheep. Too plentiful food, hot, close air 

 and the continued action of the sun's rays are among the 

 most frequent causes. It is rarely fatal alone, and the 

 patient may keep in good condition for years. It often dis- 

 appears spontaneously, and rarely'passes into inflammation 

 of the brain or apoplexy ; in which case it may end in 

 death. 



In order to prevent a repetition of the attack, six or eight 

 ounces of blood are removed by bleeding, and this alone 

 sometimes cures the disease. It is occasionally necessary 

 to purge the patient besides, by giving glauber salts two 

 ounces and saltpetre one-eighth ounce, dissolved in water. 

 The food must be of mod'erate quantity, and the animals 

 should be kept in a cool, shady place.- From time to time 

 cold water should be poured over the head of the patient. 



HJ5MATUEIA. 



Hsematuria, or bloody urine, is not of frequent occur- 

 rence, but commonly attacks the greater portion of a flock 

 simultaneously. The evacuated urine is of a bloody color, 



