380 
GEORGE FLEMING. 
HUMAN AND ANIMAL VARIOLA: A STUDY IN COM¬ 
PARATIVE PATHOLOGY. 
By George Fleming, F.R.C.V.S., Army Veterinary Inspector. 
(From the Veterinary Journal, London , England.) 
(Continued from p. 329). 
HORSE-POX. 
I have casually and repeatedly alluded to horse-pox, and it is 
necessary to again refer to it; as, if what transpired at the Vac¬ 
cination Conference is to be taken as evidence of our state of 
knowledge with regard to this kind of variola, we would deserve 
to be accused of unpardonable ignorance. If for no other object 
also than to rescue the reputation of Jenner from the charge of 
error preferred against him in this matter, it would be more than 
worthy of our attention. It is well known that Jenner expressed 
himself as of opinion that cow-pox was derived from horses 
affected with what was then, and is even now, properly termed 
“ grease.” But for very many years, and also at the recent con¬ 
ference, it has been denied that there was any relationship between 
the disease of the horse and cow pox ; and on the latter occasion 
it is reported that one of the speakers in remarking that “ all 
who were acquainted with the subject were well aware that there 
were some erroneous views originally held by Jenner with respect 
to the conveyance of that particular disease (cow-pox) from one 
animal to another—from the horse to the cow, and that it was in 
consequence of that conveyance that the cow became affected with 
a disease that he called cow-pox,” added: “ In the present day, 
perhaps, it was unnecessary for him to say that among veterinary 
surgeons who were acquainted with the lower animals, that opinion 
had always been negatived. He was of opinion that Jenner saw 
the disease of the animal, and that it was of a repetitive nature, 
which by his own observations he was well aware did not possess 
any particular quality.” It is scarcely necessary to remark that 
intelligent students of veterinary medicine do not negative Jcnner’s 
