156 CARNEGIE INSTITUTION OF WASHINGTON. 



and the Eugenics Record Office be hereafter designated as 



the Sections of Experimental Evolution and the Eugenics Record 

 Office respectively, of the Department of Genetics." Also, "that the 

 proposed Department be placed officially, as it has already been in 

 fact, under the administration of Dr. Charles B. Davenport, with the 

 title Director of the Department of Genetics." Since the sections are 

 physically separated and since the methods of work in the sections 

 is quite different, the following assistant directors were appointed: 

 Dr. C. C. Little, of the section of Experimental Evolut on, and Dr. 

 H. H. Laughlin, of the Eugenics Record Office, of which he had been 

 superintendent from its foundation. 



SPECIAL ACTIVITIES OF AND CHANGES IN STAFF. 



Assistant Director Laughlin entered upon his new duties June 1, 

 1920, at the expiration of his leave of absence. During the summer he 

 had charge of the training class, assisted by Dr. F. L. Reichert, of 

 Johns Hopkins University. Assistant Director Little has acted as 

 secretary-general of the Second International Congress. During the 

 summer he had the cooperation in his researches of a considerable 

 number of temporary collaborators and assistants, who were, for the 

 most part, engaged on the genetics of cancer. Dr. A. F. Blakeslee has 

 similarly organized a temporary corps of investigators which has 

 assisted in the work on Datura. Dr. J. A. Harris, besides maintaining 

 here his biometric laboratory, has made field studies in Florida and in 

 the Great Desert, especially Utah and Arizona, where he has had a 

 number of temporary associates. Dr. O. Riddle has continued his 

 work on the physiology of reproduction in pigeons. Dr. A. M. Banta 

 has continued his investigations into the origin and characters of the 

 fauna of caves, while maintaining strains of Entomostraca now in 

 between the second and third hundredth generation. Dr. C. W. Metz 

 continued his cytological studies on genetics of Diptera; during the 

 summer he took a vacation enforced by eye-strain. Dr. E. G. Ander- 

 son has been associated with Dr. Metz and has undertaken especially 

 a systematic analysis of the foundations of the theories of linkage, 

 crossing over, non-disjunction, factorial interaction, mutation, and 

 gene constitution. Dr. Banker has continued his work on aristogenic 

 families. This study made necessary a trip to study the records of 

 certain eastern colleges. Dr. A. H. Estabrook has continued his 

 work on the Ishmaelites of Indiana and has devoted some time to the 

 direction of other social investigations in that state. Dr. Elizabeth B. 

 Muncey is in charge of the archives of the Eugenics Record Office in 

 place of Miss L. A. Nelson, who has been engaged in field-work in New 

 York City, especially on bone abnormalities, in which she was aided 

 by the cooperation of Dr. F. W. Taylor. With the organization of the 

 Department of Genetics, Mr. G. H. Claflin was made chief clerk and 

 Mr. George Macarthur superintendent of buildings and grounds. 



