320 MANUAL OF EQUINE MEDICINE. 



upon the severity of the injury, as this affection may follow- 

 even very slight wounds. It is most likely to follow lace- 

 rated wounds or punctures. 



Wounds in the feet, thighs, quarters, and forearm are 

 especially liable to be followed by tetanus ; and this is 

 more particularly the case when the nerves are injured. 



Wounds, it will thus be seen, in parts which are the most 

 tense, and in structures bound together by strong unyielding 

 tissues, are more frequently succeeded by tetanus than in- 

 juries in the laxer tissues. 



Injuries in the joints, although frequently inducing a high 

 febrile condition, are nevertheless not often followed by 

 tetanus. 



The operations after which the disease most commonly 

 supervenes are docking and castration ; and, in some in- 

 stances, the insertion of setons has been followed by an 

 attack. 



In some cases tetanus has been traceable to irritation of 

 the stomach and intestines, caused by worms or collections 

 of sand in the large intestines. 



Uterine irritation following abortion is also a cause of 

 tetanus in some instances. 



Exposure to cold and damp, especially after exhaustion, 

 may induce tetanus. 



Horses, when exposed in cold weather after being clipped, 

 are sometimes affected, and sheep similarly, when exposed 

 in cold and boisterously wet weather immediately after 

 being shorn, are said to be very liable to become affected 

 with this disease. 



Tetanus is more prevalent in certain districts than in 

 others. In some parts of the country it is very frequently 

 met with, while in others it is as rarely seen. 



Sometimes it occurs as an enzootic disease, and Mr. 

 Williams records that in the summer of 1858 he witnessed 



