52 a EXPERIMENT STATION. [Jan. 



REPORT OF THE DEPARTMENT OF 

 MICROBIOLOGY. 



C. E. MARSHALL. 



The Experiment Station Avork in this department may be 

 enumerated under three heads : — 



Food. — The only workers in this field for the past year have 

 been two graduate assistants giving half time, — Mr. Conrad 

 H. Leiber and ]Miss Mary Garvey, the latter retiring from the 

 work Oct. 1, 1920. Owing to this situation progress lags. 

 Dr. Arao Itano, who gave some time to food study during the 

 year, with the assistance of ]\Iiss Garvey, concluded a phase 

 of this field of study, report on which will be withheld until 

 another aspect of the subject is covered. The study in hand 

 is a continuation of that of last year. 



Dairy. — Although no recognition is given to the dairy 

 studies by the Experiment Station, it may not be amiss to men- 

 tion the fact that Mr. James Neill and Mr. R. C. Avery are 

 engaged upon two very interesting themes out of which much 

 is anticipated. 



The past year two articles have been published in "Dairy 

 Science," giving the results of the department's work on the 

 De Laval studies : — 



"Clarification of Milk," by Charles E. ]Marshall and E. G. Hood, together 



with Arthur N. Julian, S. G. Mutkekar and Max S. Marshall, in Vol. 



Ill, No. 4, July, 1920. 

 "An Association Study of Streptococcus Lacticus and Bacillus Svbtilis," by 



Max S. Marshall, in Vol. Ill, No. 5, September, 1920. 

 Another article has been prepared by Max S. IMarshall dealing with the 



possibilities of the clarifier, which furnishes a basis for its future 



development. 



