10 - UNIVERSITY OF WISCONSIN STUDIES 



had been attracted by the new subject, the new science of 

 bacteriology, that was developing so rapidly under the 

 tutelage of Pasteur and Koch. The thesis submitted to 

 Harvard University in 1884 by Professor Trelease for his 

 doctorate was entitled Observations on Several Zooylcea and 

 Related Forms. It involved a study of the growth of cer- 

 tain bacteria on potato. The interest of Professor Trelease 

 in bacteriology led him to introduce it into his courses in 

 botany. Dr. Trelease left the University in 1885 and his 

 work fell to the then professor of zoology, President E. A. 

 Birge, under whose guidance the student was to receive his 

 introduction to bacteriology. Two years were spent in grad- 

 uate study at the University of Wisconsin. During this 

 period the first paper was prepared. It was entitled Pre- 

 liminary Observations on the Bacteria of Ice from Lake 

 Mendota, and was published in 1889. 



In those days two laboratories were attracting all students 

 who wished to become bacteriologists, that of Robert Koch 

 at the University of Berlin and that of Louis Pasteur in the 

 Institute which bears his name. The years of 1890-1891 and 

 1891-1892 were spent in these laboratories and at the Zoological 

 Station at Naples where the data were collected for the first ex- 

 tensive paper which was published in the Zcitschrift filr Hy- 

 (ftene in 1892 under the title Untersuchungen ilber im Golf von 

 Neapel lebcnde Bakterien. On returning to this country a year 

 was spent under Dr. William H. Welch of Johns Hopkins 

 University. By this university the doctor's degree was 

 granted in 1893. The thesis submitted for the degree was 

 entitled Bacteria in their Relation to Vegetable Tissue. It 

 was published in the Johns Hopkins Hospital Reports in 

 1893. A year was then spent at the University of Chicago 

 as fellow in biology. 



Under the influence of Weigmann in Germany, Storch in 

 Denmark, and Conn in this country, dairy bacteriology was 

 rapidly attracting the attention of those interested in this 

 phase of animal industry. It had long been evident to the 

 director of the Wisconsin Experiment Station, Professor 

 Henry, that Wisconsin was destined to become a great dairy 



