CHORE A. 217 



doses. With this drug it is always possible to prolong the inter- 

 vals between attacks; they are also shortened, and relatively less 

 serious. Other agents, such as oxide of zinc, arsenic, nitrate oi 

 silver, belladonna, hyoscyamus, valerian, bromo-hydrate, cold 

 water, and electricity. 



R. — Bromide of sodium 15.0 



Aqua 150.0 



S. — One tablespoonful three times daily. 



In connection with this disease we must devote a few words to 

 convulsions of young animals. We very often see weak, debili- 

 tated animals which are backward or poorly fed, but which have 

 rickets as a consequence of reflex irritability during the course of 

 catarrhal diseases of the digestive tract or of the nasal cavities. 

 We also notice them after the absorption of large quantities of 

 fermenting, indigestible food, in constipation, and in cases of 

 intestinal parasites, at the time of teething, and also as a conse- 

 quence of great psychical excitement. We often see spontaneous 

 convulsions; these are very similar to epilepsy, and are probably 

 of reflex origin. In some of these cases we may have to deal 

 with true epilepsy, but, as a rule, they may be ascribed to an 

 undeveloped form of distemper. In some cases it may be due 

 to some brain affection, such as congestion of the membranes. 

 It cannot be denied, however, that there are a great number of 

 convulsive attacks for which the cause remains obscure. 



We may, therefore, conclude that we can only obtain an approx- 

 imative insight into these convulsions by the symptoms which are 

 presented. Frequent occurrence of eclamptic attacks with a short 

 interval between must be considered as a very serious symptom. 



The therapeutic treatment of convulsions consists in the use of 

 applications of cold water to the head; large doses of bromide of 

 sodium, morphia, and similar sedative iigents. We must also take 

 into consideration the causes of the disease and keep the animals 

 as quiet as possible. 



Chorea. 



(St. Vitus' s Dance.) 



We define this disease as a persistent clonic convulsion of some 

 muscular group in certain parts of the body. For instance, shak- 



