GREASE, CHOWN-SCAB, &C. 201 



THE CROWN-SCAB 



Is a humour that breaks round the coronet, pro- 

 ducing a scurviness and itching : it may be cured 

 in the same manner as the grease, by applying the 

 poultice (No. 148, p. 196), and the astringent 

 wash (No. 145, p. 194), or (No. 146, p. 195), and 

 afterwards the ointment (No. 147, p. 196). Some- 

 times the author has found it necessary to make 

 use of the mercurial ointment (No. 33, p. 56), or 

 (No. 39, p. 64), which must be well rubbed on 

 the part before the ointment and water for the 

 grease are applied. 



RAT-TAIL. 



This disease generally takes its course from 

 the pastern to the middle of the shanks, and is so 

 called from the resemblance, it bears to the tail of 

 a rat. Sometimes it is moist and at others d?y ; 

 in the former case, it must be treated in the same 

 manner as for the grease ; and in the latter, with 

 the mercurial ointment (No. 33, p. 5Q), or (No. 39, 

 p. 64), which must be well rubbed on the part af- 

 fected once or twice a day. 



