REPORT OF CASE. 
m 
We have in this Review completed an article of his on the 
important question of the production! of immunity by inoculation 
with diluted virus, which will, no doubt, show that Dr. S. is 
quite master of the subject, and that the appointment which he 
has just received from the Commissioner of Agriculture was well 
deserved, and will prove but another opportunity for him to con¬ 
tinue in the completion of this interesting work. 
We also publish an article from M. Chauveau, presented to the 
Academy of Sciences, on a new method for the preparation of 
attenuated viruses, the process being no longer carried on by the 
influence of oxygen, as in the mode of Pasteur, or by dilution, as 
in that of Salmon, but by the action of heat, a 'process which 
seems, for many reasons, likely to take precedence in general 
practical application over that which is now generally in use on 
the continent of Europe. 
It will be gratifying to the veterinary profession of America 
to learn that, young as she is in the field, she is already making her 
mark in the most important department of their calling, viz., that 
of the prophylaxy of contagious diseases. 
REPORT OF CASE. 
HYDROTIIORAX—TUBERCULOSIS IN A RHINOCEROS. 
By A. Liautakd, M.D., Y.S. 
Mongo was a huge female rhinoceros, which since the age of 
three years had been one of the attractions of the “ greatest show 
on earth,” the property of Barnum, Bailey, Hutchinson A Co. 
Aged 16 years and weighing about 5,000'pounds, she had always 
enjoyed apparent good health. She was of a kind disposition, 
had always fed well, never coughed; drank about five pails of 
water a day. All that was noticed about her was that for the 
last three months she had a peculiarity of resting her throat over 
the edges of her cage, breathing then with difficulty, remaining 
in that position for a few moments, going about in her cage, to 
resume again the same position. This winter she lias seemed 
somewhat delicate in feeding, eating about 10 quarts of oats and 
meal a day, a dozen of carrots, a couple of loaves of bread, and 
