CONTROL OF CITY MILK SUPPLY 231 
than “quacks,” and when the testing is done by such 
men there is bound to be trouble. Efforts should be 
made to secure well-known, competent men to do the 
testing and to lay the qualifications of such men before 
the herd owners. 
Farmers Benefited by Tuberculin Test: There is 
one thing that should be strongly emphasized in the 
matter of getting milk producers to test their cows for 
tuberculosis, and that is the need of healthy cows in con- 
ducting a profitable dairy business. Entirely aside from 
the health consideration so far as they affect consumers 
of milk, it is an imperative matter for milk producers 
to eliminate tuberculosis from their herds to insure a 
profitable business. Tubercular cows are sick cows, and 
it is folly to expect the best results from sick cows. If 
milk producers would fully understand the detriment 
to their business from keeping tubercular cows, it would 
not be necessary for city ordinances to compel them to 
cull out their infected animals. There is not a first-class 
dairyman in the country today who is willing to con- 
duct a dairy business without assuring himself that his 
herd is free from tuberculosis. This phase of tuberculin 
testing should be properly stressed when asking dairy- 
men to comply with city ordinances affecting the health 
of cows 
Greater co-operation in tuberculin testing can undoubt- 
edly be obtained by refraining from forcing this test 
upon the farmers until they have had a reasonable oppor- 
tunity to become acquainted with the efficiency and value 
of tuberculin testing. Education is needed here just as 
along general sanitary lines, and this should precede 
the enactment of stringent city ordinances. 
Presence of Tubercle Bacilli in Milk. That tuber- 
