CORRESPONDENCE. 
79 
point of view. I understand that our English and Belgian 
expert friends found lung lesions of a pronounced character as 
regards extent of invaded tissue. Assume that these animals 
were slaughtered twenty days after leaving their original start¬ 
ing point, they must have been then affected, if this is contagious 
pleuro-pneumonia, and at the time of shipment must have been 
observably sick animals, with a temperature of 105° F., and that 
very careless inspection would detect them as unsound, and it 
would be expected that many would be sick and a few dead at 
the end of the voyage. 
The incubation stage of this disease does not, in my experi¬ 
ence, last over from one to three days, when then there are found 
lung lesions readily detectable on physical examination, coupled 
with the characteristic appearance exhibited by the live animal. 
No typical case of contagious pleuro-pneumonia was ever 
limited to one animal, providing that animal was allowed to 
freely cohabit with others during the various progressive stages 
of the disease. 
In the absence of this “missing link,” the pathological con¬ 
dition found in the lungs of these animals cannot be those of 
contagious pleuro-pneumonia contracted in this country. 
What are they? If we take a little history into our confi¬ 
dence, I think you will agree with me that they are due to an 
acute attack of bovine tariff pneumonia of a sporadic character. 
L. McLean, M.R.C.V.S. 
CORRECTION. 
Dr. A. Liautard . New York, March 8, 1895. 
Dear Sir :—I have just received a copy of the March 
American Veterinary Review, and in it I notice a review 
of Hoare’s book. 
I sent you the copy, and so this house should be recognized 
instead of Balliere’s, or at least along with Balliere’s. I presume 
the fault lies with the proofreading, for I do not believe you 
would be so discourteous. Yery truly yours, 
For Mrs. Jenkins. J* IRVING MURRAY, Jr. 
