246 DISEASES or THE HORSE. 



hair in consequence is sometimes rubbed off to some extent. It 

 is not, however, infectious, but at the same time, it is very diffi- 

 cult to cure, and is, indeed, sometimes incurable, and continues 

 through life, though not always to the same extent. 



The treatment should consist of venesection, physic, and 

 diuretics, and the application of a stimulant to the skin, such as 

 the oil of tar combined with olive oil. — Ed.] 



Mallenders and Sallenders. 



]\Iallenders is a disorder that attacks the back part, or flexure, 

 of the knee joint, and is sometimes owing to a combination of 

 mange and grease. It appears as a scurfy or scabby eruption, 

 and is often very painful, causing some degree of lameness, from 

 the pain the animal feels in moving the joint. Sometimes it is 

 not so considerable as to produce lameness, or any apparent in- 

 convenience, but generally becomes troublesome and obstinate 

 unless attended to. Sallenders occurs in the fore part, or flexure, 

 of the hock joint, and is of the same nature as mallenders. 

 They should first be well washed with soap and water, and all 

 the scurf and loose cuticle completely removed. They may then 

 be cured by the following ointments : — 



Ointment for 3Iallenders and Sallenders. 



No. 1. 

 Ointment of nitrate of mercury, commonly named citrine 

 ointment. 



No. 2. 



Hog's lard, 4 oz. ; melt, and stir in Goulard's extract, 1 oz. 

 This ointment is milder and more cooling than the fonner. 



Croum Scab and Rat Tails. 



These are of the same nature as mallenders, and may be cured 

 by the same means. They generally, however, leave a blemish, 

 consisting in a loss of hair, and thickening of the cuticle. 

 Crown scab occurs on the coronet, and rat tails in lines on the 

 back part of the leg, extending from the fetlock upwards. 



CHAP. XLV. 



WARTS. — WENS. ENCYSTED TUMOURS. — MELANOSIS. 



Warts are schirrous excrescences, which appear on different parts 

 of the skin. They are sometimes very lai-ge ; at others small, 

 but very numerous. In some cases the roots are small, in others 

 large, and involving a considerable portion of the skin. The 



