30 



External and 



Diseast and probable cause. 



Symptoms. 



PBBT (outer or visible di- 

 seases). — iCoiUd.) 

 THRUSH, from contraction, 



want of exercise, wet feet, 



and neglect. 



CANKER, from neglected 

 thrush or severe bruise, or 

 constitutional. 



CORNS, from bad shoeing 

 or injury from a pebble or 

 concussion. 



QUITTOR, from any wound 

 in foot or severe bruise. 



PENIS- 

 EXCORIATED SHEATH, 



from not being cleaned re- 

 gularly. 



ULCERS on the yard from 

 dirt or constitutional causes. 



ANY PART- 

 MAGGOTS inuny neglected 

 sor^, often in foot. 



Slight lameness and tender- 

 ness when exercised. Deep 

 cleft in frog, which has 

 foetid smell and emits 

 slight discharge. 



Pale fungus growth on bot- 

 tom of foot, and thin 

 foetid discharge. Severe 

 lameness. 



Lameness. Reddish spot on 

 sole in the angle between 

 bars and outer wall of 

 hoof. Horse flinches when 

 the spot is pressed. 



Lameness. Foot hot and 

 tender. Small hard tu- 

 mour just above hoof, 

 pipes (or sinuses) in foot 

 will be found by probing. 

 If the pipes run dow7i in- 

 stead of backwards it is 

 very bad sign. 



Tender swelling of sheath, 

 sUghtly offensive smell, 

 and sometimes acrid dis- 

 charge. 



When the yard is out prepa- 

 ratory to passing urine, the 

 sores can be seen. 



Little maggots suddenly 

 make their appearance. 



