190 THE CONTAGIOUS TYPHUS 



so that by Friday last, the 22nd of September, the day of 

 my visit, forty-six had either died or been killed, and 

 twenty-seven were in a very precarious condition. 



" On the 7th of September, ten days after the last ex- 

 posure to the sheep, a cow gave evidence of being affected 

 with the cattle plague, this animal being the one which 

 had been put into the shed occupied by the diseased 

 sheep on the 24th of August. A second cow was attacked 

 on the llth of September, and a third shortly afterwards, 

 which was followed by others ; so that by the 16th all the 

 cows, six in number, a heifer, and a calf, were all dead. 



"My examination of the lambs showed that they were 

 unmistakably the subjects of the plague. The symptoms 

 agreed in almost every particular with those observed in 

 cattle affected with the malady, and the post-mortem ap- 

 pearances were also identical. 



" With a view to ascertain the true nature of the 

 changes produced in the system prior to death, T had four 

 of the lambs killed, and from these I took some diseased 

 parts and forwarded them to the Royal Veterinary College 

 without note or comment. These parts were examined 

 by my colleague, Mr. Varnell, who at once recognised the 

 special changes of structure which are caused by the cattle 

 plague. 



" The whole facts of the case leave not the least doubt 

 of sheep being liable to the disease termed the cattle 

 plague, and that when affected they can easily communi- 

 cate the malady to the ox tribe ; and moreover, that 

 when so conveyed it proves equally as destructive as 

 when propagated from ox to ox in the ordinary manner. 



" The case is also more important from having occurred 

 in a place no less than fourteen miles distant from any 

 other where the cattle plague exists, thus placing beyond 

 a doubt the fact of the malady being introduced among 

 the cattle by the sheep alone. 



