EARLY INSTRUCTORS IN BACTERIOLOGY IN THE 

 UNITED STATES 



ADDENDA 



E. G. HASTINGS and C. B. MORREY 

 THE WORK OF WILLIAM TRELEASE 



The recent paper^ by Dr. D. H. Bergey on the ''Early Instruc- 

 tors in Bacteriology in the United States" is of historic interest. 

 It would seem that it should be made as complete as possible. 

 The name of Dr. William Trelease is mentioned in connection 

 with the development of bacteriology at the University of Wis- 

 consin. No facts, however, are given as to the importance of 

 his work in this connection. 



Dr. Trelease came to the University of Wisconsin in 1881, 

 leaving in 1885 to assume charge of the Missouri Botanical 

 Gardens at St. Louis. In 1884 Dr. Trelease presented to the 

 Academic Council of Harvard University as a doctor's thesis 

 the results of some work he had done in the botanical laboratories 

 at the University of Wisconsin. This work was published in the 

 Studies from the Biological Laboratory of the Johns Hopkins 

 University, Vol. Ill, No. 4, 1885 under the title "Observations 

 on Several Zoogloeae and Related Forms." 



Dr. L. H. Pammel, Wisconsin 1885, who is mentioned by Dr. 

 Bergey as one of the pioneer instructors in bacteriology, received 

 his first instruction in the subject from Dr. Trelease. Dr. 

 Pammel states in a personal letter that Dr. Trelease introduced 

 some work with the bacteria into his course in cryptogamic 

 botany in the first semester of 1882-1883. Cultures were made 

 on potato. The organisms of the mouth were studied, and the 

 students were required to read Dr. Burrill's paper on "Bacteria," 

 which is mentioned by Dr. Bergey. The work of Pasteur, 

 Tyndall, Koch, Cohn, and others was discussed. 



iJ.Bact. 2, 595. 



307 



