536 
JOHN M. PARKER. 
somewhat uncertain. This Bureau is now preparing tuberculin 
for detecting tuberculosis in cows and supplying it free of cost 
to State authorities who have power under the law to act in 
reference to that disease. We shall also probably in the near j 
future test all cattle imported into this, country for breeding 
purposes. Owing to the great amount of work which this 
Bureau now has in charge, it is not likely that any further 
steps will be taken concerning tuberculosis in the near future. 
The Department has no objection to your using lantern 
slides in your lectures made from the lithograph plates in our 
bulletins. I should be pleased to receive copies of anything you 
write in regard to tuberculosis or other diseases. 
Very respectfully, 
D. E. SAI.MON, I 
Chief of Bzireau. 
It gives me real pleasure to give the above information 
from such a high source, as well as being gratified to be sus¬ 
tained in my views on a subject of universal importance to the 
general public, by Dr. Salmon, one of our most distinguished 
comparative pathologists, who is performing a most herculean 
work in tbe suppression of tuberculosis and other animal diseases 
injurious or fatal to mankind. 
A. S. Heath, M. D., V. S. 
RESULTS ATTAINED AND ATTAINABLE BY STATE 
CONTROL OF TUBERCULOSIS. 
By John M. Parker, D. V. S., Secretary Massachusetts Cattle Commission, 
Haverhill, Mass. 
Read before the United States Veterinary Medical Association at Nashville, Sept. 8, 1897. 
{Concluded from page 4/'i.) 
In referring to the work of the local inspectors, one often 
hears the remark made, that physical examination does not 
amount to much any way ! Now, while I admit that many bad 
cases cannot be picked out by physical examination, yet I am t 
also satisfied that a large proportion of the bad cases of tuber- i 
culosis can be picked out, and many more can be suspected, so 
that they may be quarantined and tested. As a rule the bulk of 
