Commission Report: Tuberculosis. 19 
it goes; if they are against it, it is at best a dead letter. It is worth 
a great deal in the promotion of such objects, to have a live stock 
sanitary board in a state that will take hold and lead in this 
work. In too many instances these organizations are purely nega- 
tive, in their influence, and so nothing is done. ‘There is a notable 
lack of funds to bear the expense of demonstration work. The 
farmers everywhere would willingly be taxed for its support. 
Municipalities could well afford to have such expense for the 
“sake of the education it would afford to consumers of meat and 
dairy products. 
In conclusion, I would urge upon this Commission that special 
emphasis be placed upon the promotion of public exhibitions of 
diseased cattle before and after slaughter, as the most powerful 
means of education concerning the nature and danger, of bovine 
tuberculosis. 
(Signed) W. D. Hoar. 
Appendix B. 
REPORT OF COMMITTEE ON LOCATION OF TUBER- 
CULOSIS IN CATTLE. 
Your committee on the location of tuberculosis in cattle desires 
to submit the following as its report upon this subject. Though 
we are all agreed that no method for detecting tuberculosis in 
cattle equals the tuberculin test, we are forced to recognize that’ 
the universal application of the test under existing conditions is 
practically and economically impossible. The number of cattle to 
be tested, for example, is so great that, if all the available veter- 
inarians and all such other persons as may be trusted to make 
tuberculin tests should be started on this work at once, and kept 
at it, years would pass before all the cattle in the United States and 
Canada could be tested even a single time. Consequently, our 
efforts to locate tuberculosis among cattle should depend primarily 
upon other means than the tuberculin test. 
The tuberculin test should be regarded as having only an inci- 
dental value in the systematic work of locating tuberculosis, and 
as being of preeminent importance when we undertake the deter- 
mination of the extent to which the disease is prevalent at any 
point in any herd where it has been located by other means or, 
incidentally by the tuberculin test. 
