318 LOCAL NON-OONTAGlbUS DISEASES. 



In foot-rot, as a general rule, one or two feet only are 

 attacked at first, generally the two fore-feet. In foot and mouth 

 disease all four feet generally are affected, vesicles extending 

 over the front of the digits, and almost always around the heels. 

 In foot-rot vesicles do not appear in other parts of the body, 

 as on the udder, skin, or in the mouth, which is the case in foot 

 and mouth disease. 



In foot-rot the separation of the wall of the hoof from 

 the digit proceeds from below upwards, the reverse being the case 

 in foot and mouth disease. 



Lastly, foot and mouth disease is highly contagious. By an- 

 nointing a wisp of hay with the discharge and drawing it through 

 the mouth of a healthy sheep, a definite diagnosis can be arrived 

 at, as this is always incase of foot and mouth disease sufficient 

 to inoculate and produce the condition in the healthy subject; 

 whereas in foot-rot the effects would be nil, it being impossible to 

 propagate it in such a manner. 



Crcatmctit. 



This must be prompt and in many cases heroic if a speedy 

 cure is to be expected. "When a large number of a flock become 

 affected, the daily turning of each diseased sheep would be a 

 niattter requiring a large expenditure of time and trouble. To 

 overcome this, various foot baths have been adopted through 

 which the flock is driven once a week or oftener, if desired, and 

 it is highly proper here to describe this method before taking up 

 the individual treatment of the members of the flock. 



A shallow trough about two feet in width and eighteen 

 inches deep, the length being a matter of convenience, depending 

 upon the number of sheep to be treated, is set in the ground. A 

 low fence is made to run the entire length and on each side of 

 the vat, so that the sheep will be compelled to stand in it. A 

 solution of arsenic made as follows; 



