14 UNIVERSITY OF WISCONSIN STUDIES 
tered at various gatherings of farmers and thus there was 
presented to them evidence of the ravages which the disease 
may occasion in an apparently healthy animal. 
If progress was to be made, the tuberculin test must be 
widely used. The limited number of veterinarians available 
for the work made evident the necessity of extending its appli- 
cation to the laity. With this idea in mind, special instruc- 
tion in the use of the test was given to the students of the 
agricultural college, both in the regular and in the short 
course. 
It was suggested that the prevention of the sale of tuber- 
cular animals would be the most effective way of stopping 
the spread of the disease. The passage of a law was urged 
that would require the testing of all cattle sold for breeding 
and dairy purposes. Such a law was enacted. 
The first of these steps was opposed by the veterinarians 
who felt that it was an encroachment on their field; the 
second was opposed by the farmers who had not been or who 
would not be convinced of the importance of the disease. The 
plan was too early to meet with the approval of those most 
concerned, and by the time they had become ready to give to 
such a plan their sympathy and approval, it was too late for 
such or any plan to have much effect. 
Looking backward from the vantage point of present knowl- 
edge, one can see how great a factor the plan would have 
been in preventing the spread of the disease which is rapidly 
becoming the most important as far as the economic and sani- 
tary aspects of the dairy are concerned. 
Dean Russell served as a member of the State Live Stock 
Sanitary Board for a number of years. The work in bovine 
tuberculosis led to an interest in human tuberculosis. The 
services rendered in this field were in connection with the 
establishment of the State Tuberculosis Sanatorium at Wales. 
Dean Russell served as president of the advisory board of 
this institution. 
For a number of years, work was done for the State Board 
of Health in the sanitary examination of water and in the 
diagnosis of tuberculosis, diphtheria, and typhoid. In 1903 
