454 
A. T. KINSLEY. 
by the people of the United States is derived from the dairy cow. 
There is probably no one who has a knowledge of milk, the 
source of its contamination, the changes which it undergoes after 
leaving the animal, better than the veterinarian. It is found that 
milk is frequently a carrier of diseases infective to man only. 
Milk borne typhoid fever is credited with about 100,000 cases of 
this disease annually in the United States, of which fifteen to 
twenty thousand die. Scarlet fever and diphtheria are easily 
and frequently transmissible through milk. Through milk borne 
endemics these two diseases are paying a heavy death toll an¬ 
nually. The great loss of human life in the United States to-day 
is due to dysenteric disturbances of babies, caused by impure or 
unwholesome milk. 
It must not be understood that the veterinarian alone should 
be responsible for the preservation of health of the public. The 
various phases in which the veterinarian is and should be a factor 
have been 'briefly discussed, but the conservation of the health can 
be brought to the highest standard only by the co-operation of 
the physician and the veterinarian. Each has his field, although 
they essentially overlap. For example, when the physician finds 
any cases of Malto fever, infantile intestinal tuberculosis, or other 
diseases that may be milk borne, he should consult the veterina¬ 
rian and obtain his co-operation in determining the source of the 
infection and thus prevent further extension of the disease. On 
the other hand, if the veterinarian finds rabies, or other diseases 
transmissible to the human, prevalent in any of the domestic 
animals, he should consult with the physician and advise as to 
the best means for prevention of infection in the human. Such 
freedom of consultation will be of untold benefit, and, if carried 
on as suggested, it will.be the cause of establishing a new stand¬ 
ard of health. 
In summarizing, it is very evident that the veterinarian is 
naturally the most efficient of sanitarians, in the maintenance of 
health of the domestic animal. It has been further shown that 
many of the diseases of animals also affect the human, and in 
view of the fact that there are many human diseases and diseased 
