218 
CORRESPONDENCE. 
appreciated by the more intelligent consumers of dairy products, 
that of being enabled to furnish them with pure products, 
guaranteed the fruit of healthy stock. 
We cannot see how in the light of present knowledge, cattle¬ 
men will continue to purchase stock to replenish or enlarge 
their herds, without first taking the precaution to apply the 
tuberculin test. We believe the time is coming when every 
cattle owner will have his own cattle tested, and never buy 
cattle without submitting them to this test, but this condition 
will not be realized until veterinarians more generally appre¬ 
ciate its importance and advocate its use. 
Cattle-owners naturally look to their veterinarians in whom 
they have confidence, for instruction and advice regarding their 
stock. It should be the duty of veterinarians to instruct and 
advise them regarding stock and stable sanitation, as well as 
the means and methods for preventing the development and 
spread of infectious diseases, and we hope soon to see more 
work done in this line by individual veterinarians and veteri¬ 
nary societies. 
To encourage the private application of the tuberculin test, 
we will furnish for a time, to any or all cattle-owners applying 
for it, sufficient tuberculin to test their herds, provided they 
will require the veterinarians making the tests to furnish us 
with a complete report of their work on blanks furnished by us, 
We should be pleased to have you promptly report to us, 
any cattle you may know or suspect have tuberculosis, as we 
desire in all cases, to take such action as will prevent further 
spread of infection to cattle or man. 
Yours very respectfully, 
F. W. Smith, M. D., 
Sec'y Tuberculosis Committee. 
DR. PKRDKy’S CASE OE EXTRA-UTERINE PREGNANCY. 
Ithaca, N. Y., May 15, 1899. 
Editors American Veterinary Review; 
Dear Sirs :— I am interested yi Dr. Perley’s case report of 
u Extra-uterine Pregnancy,” in the May issue of your journal. 
I do not follow his description. His statements are paradoxical. 
As I read the description, it seems that on October 16, the mare 
had labor pains and expelled the foetal membranes, and that on 
the following day the “os” was “ dilated ” and uterus “ was 
pretty well contracted,” while on the floor of the latter a com¬ 
pletely healed cicatrix was recognizable. 
