280 
Contagious Foot-rot in Sheep. 
checked, the horn of the diseased claw is loosened from the inner 
surface and in a short time is entirely thrown off, and a new hoof 
begins to grow from the coronet downwards. Fig 6. shows this 
change. If the hoof is not thrown off quickly, it grows with 
rapidity and is more or less distorted in form, as seen in Fig. 7. 
The horn tufts or fibres sprouting from the diseased membrane 
are seen distinctly in Figs. 6 and 7 ; and in the next illustration 
(Fig. 8) a small portion of the diseased membrane has been 
hardened and cut into fine sections, one of which is shown, 
exhibiting very distinct horn structure. 
In reference to the changes which are illustrated in the last 
three drawings, it may be remarked that similar changes are 
seen in other inflammatory diseases of the foot of the sheep, 
also in foul in the foot of the ox, and in canker in the foot of 
the horse. It is therefore necessary to lay stress on the state- 
