146 
editor! A t. 
it is not this last-named malady which is destroying American 
swine; is not this the agency by which the Western States are 
losing millions annually ? 
This is truly an important question, and one also which unfor 
tunately, cannot be decided to-day, though tho worthy veterina 
rian of the Bureau of Animal Industry has attempted to give us 
the evidences that hog cholera is not rouget , in the remark, “ that 
the microbe which produces the first is very different from the 
other; that the introduction of Pasteur’s vaccine is not only use 
less but may contribute to the introduction and spread of a dis 
ease, the existence of which in this country has not yet beer 
demonstrated,” concluding his series of papers to the Breeders 
Gazette by saying, “ that he tenders the gratuitous observation 
that it would still be premature to jump to the conclusion that 
the German schweineseuche is identical with our hog cholera.” 
Our readers will find pleasure and profit in reading Dr. Sal¬ 
mon’s letters. For better information on the subject, however, we 
would refer them to the second annual report of the Bureau of Ani. 
mal Industry for 1885, recently published. This report contains a 
minute description of the investigation conducted by that section 
of the Department of Agriculture, and contains strong evidences 
of the intelligent manner and original views with which our 
worthy colleague seeks to throw light on the subject. Bouget, 
hog cholera, rothlauf or schweineseuche, whichever further inves¬ 
tigation may prove it to be, is an important subject in a scientific 
point of view. If Pasteur’s vaccine is a failure, cannot another 
be found ? This is a gratuitous suggestion to those who are bet¬ 
ter acquainted than we profess to be with the delicate laboratory 
manipulations which such work demands. 
Ganglionar Leucocythemia.— We give an interesting history, 
(with diagram), contributed by house-surgeon Dr. Walrath, of a 
post-mortem examination of a mare which was for a long time 
affected with this disease. The extent of the lesions, the peculiar 
appearance presented by the animal, and the fact that until the 
disease had reached a comparatively advanced stage, her functions 
were normally performed, her general condition continued to be 
good, and she was able to perform her work down to a period 
