SALLENDERS. 91 



Symptoms. — The animal rubs the mane and tail, causing 

 them to have a rough appearance. (Another cause of 

 rubbing the tail is the presence of pin-worms in the rectum.) 



Treatment. — Have the parts thoroughly cleansed with 

 warm water, and apply some of the lotions mentioned pre- 

 viously, as hydrarg. perchlor., etc. In case of a valuable 

 stallion kept in a loose-box, a bar of wood placed around the 

 box in such a manner as to reach just above the hocks will 

 render futile all endeavours to rub the tail. At the same 

 time apply the various ointments and lotions, as ungt. acid, 

 carbol., ungt. iodi. co., etc., previously mentioned. Change 

 applications frequently, and do not wash the parts too often. 



GREASE. 



A disease showing itself in connection with the heels 

 of the horse. It is at first of an erythematous charac- 

 ter, but subsequently becomes eczematous. It occurs as a 

 result of irritation of the parts, and is known as 'grease,' on 

 account of the peculiar oily or greasy character of the dis- 

 charge which takes place from the affected part. There is 

 first a superficial irritation, which finally extends to and 

 involves the hair-follicles, sebaceous glands, etc. Heavy 

 horses are far more subject to an attack than light horses. 

 Climatic influences also play a prominent part in the pro- 

 duction of the disease, 'grease' being far more common in 



Great Britain than on the American continent. The humid 

 atmosphere of England sufficiently accounts for this fact. 

 Some veterinarians have considered ' grease ' to be con- 

 tagious, and due to the presence of a parasite ; however, 

 such is not the case. There are various stages of the 

 disease, which will be mentioned as we proceed. 



Causes. — The causes of ' grease ' are predisposing and 

 exciting. Heavy breeds of horses may be said to be pre- 

 disposed. The same may be said of horses possessing flat 



