106 Report of the President 



hygiene. Actual exhibits are now under preparation by the 

 Department of Public Education and will be completed by the 

 spring of 1920. 



The Museum of Living Bacteria has continued its invalu- 

 able work, and it is interesting to notice that a collection of a 

 similar kind has just been inaugurated in Eng- 

 Museum of land under the auspices of the Lister Institute. 

 Bacteria ^ 1S to ^ e no P e cl, however, that the preeminence 



in the field of systematic bacteriology which our 

 collection has so long held may still be maintained in the future. 



The total strains now under cultivation are 575, the col- 

 lection having been gone over and a number of duplicate types 

 eliminated. During the year ending December 1, 1919, 4,137 

 cultures were sent without charge to laboratories of health 

 departments and universities, making a total of 26,192 cultures 

 distributed since the opening of the laboratory in 191 1. All 

 together, 283 institutions have benefited by our service during 

 the year ending December 1, 1919. 



The monograph on the colon-typhoid group of bacteria, 

 prepared by the Curator, Dr. Kligler and Mir. Rothberg, ap- 

 peared during the autumn of 19 19, and the revi- 

 sion of the classification of the Staphylococci, 

 with a final report of the Committee on Classification of the 

 Society of American Bacteriologists, of which the Curator is 

 chairman, will go to press early in 1920. 



On the completion of his military service Mr. William 

 Rothberg returned to the Museum, and Miss E. I. Parsons 



resigned her position in June. Mr. Rothberg 

 Changes resigned in the autumn after completing eight 



years of devoted service, and his place has been 

 taken by Miss Ada Bancroft, Wellesley, 19 12. 



