12 UNIVERSITY OF WISCONSIN STUDIES 
great importance of the bacteria in the life and work of the 
dairy and farm, but also with the inspiration for their work. 
The first annual report of the Agricultural Experiment 
Station of the University of Wisconsin, published after the 
appointment of the bacteriologist, contained four papers by 
him; one on the relation of bacteria to milk and three on 
bovine tuberculosis, two lines which were to be followed 
actively for many years. In each subsequent report of the 
Station and in a number of bulletins were presented the re- 
sults of the research work of the department. 
It is impossible to review in any detail the things accom- 
plished. A few of the chief lines of endeavor will be men- 
tioned. In 1892 Robert Koch prepared tuberculin, a product 
that was not to fulfill the hopes of him and his friends as a 
therapeutic agent, but whose value as a diagnostic agent in 
the case of bovine tuberculosis was soon recognized. The 
college herd was tested in February, 1894. This test was 
one of the first made in this country and the first made west 
of the Allegheny Mountains. Twenty-five of the thirty 
animals comprising the herd were found to be diseased. The 
whole herd was destroyed and a new herd formed which for 
twenty years has served as an example to the farmers of the 
state of what can be done in the control of this disease. The 
destruction of the college herd was a serious step and one 
that would have been authorized only by a far-secing adminis- 
trator as the history of the Experiment Station and College 
of Agriculture has and is showing Professor Henry to have 
been. The tendency then as now was to temporize with the 
disease. No question remains as to the wisdom of the decision 
made in 1894 with reference to the fate of the college herd. 
Twenty years later sister institutions were still hesitating 
about doing with their herds what they were advising the 
farmer to do with his. 
The pioneer in any line of human endeavor is not likely 
to see the fruition of his work. To no one is this more likely 
to happen than to the investigator in agricultural fields. Facts 
are discovered, the importance of which is most evident to 
those whose background of knowledge enables them to appre- 
