262 The Farmer's Veterinary Adviser. 



favored by injections and the brain symptoms kept in 

 check by applying cold water or ice to the head, as well as 

 by bromide of potassium. In kad poisoning sulphate of 

 magnesia or soda are the appropriate purgatives, and ^ 

 oz. sulphuric acid should also be given in two parts of 

 water to precipitate in an insoluble form any lead that 

 may still be retained. If later there is a suspicion of lead 

 being retained in the system give iodide of potassium. 

 Should paralysis persist when the active symptoms have 

 passed away, treat that on general principles. 



SUN-STEOKE. 



This is especially common in horses in the hot months 

 and in the large cities, but is seen in cattle and sheep as 

 well, when exposed to the full glare of the sun. Among 

 the causes which co-operate in its production may be 

 mentioned foul, badly aired stables, tight collars or girths, 

 overwork in hot weather, heavy milking in cows, obesity, 

 poor, unwholesome food, and indeed any health-deterio- 

 "fating condition. Horses are usually attacked while being 

 speeded, or at heavy draught work, in a collar, and ex- 

 posed to the direct and reflected rays of the sun, as in 

 a valley, on a hillside or in the streets of a city. 



Symptoms. Sometimes without any observed premoni- 

 tory sign the horse will suddenly stop in harness, droop 

 his head, prop himself out on all four limbs, pant vio- 

 lently, fall, and after some convulsive movements, die in a 

 state of coma, marked by stertorous breathiug. In other 

 cases the attack is slower, the horse flags in gait, responds 

 very imperfectly, if at all, when urged, hangs on the bit, 

 may perspire freely, or have a dry burning surface, and 

 becomes unsteady on his limbs. If still urged he falls, 

 but if allowed will stand with legs extended, head low 

 and stretched out, nostrils dilated, superficial veins 

 distended, eyes protruded and red, pupils contracted, 

 breathing rapid and wheezing or deep and stertorous, the 

 pulse quick and weak, and the heart-beats tumultuoua 



