154 CARNEGIE INSTITUTION OF WASHINGTON. 



Tolerance of Salinity in Gammarus limn,'eus. 



Gortner and Harris (Science, n. s., 53 : 460-462, 1921) have noted 

 the occurrence of Gammarus limnceus in the sahne water of the Terrace 

 Crater of the Sevier Desert, an occurrence showing the wide tolerance 

 of this normally fresh-water species. 



Cooperative Studies on Human Basal Metabolism. 



Dr. Harris, in cooperation with Dr. F. G. Benedict, Director of the 

 Nutrition Laboratory of the Carnegie Institution of Washington, has 

 completed a study of the variation of the basal metabolism in the 

 individual subject (Jour. Biol. Chem., 46:257-279, 1921). This 

 supplements the investigation of the variation of basal metabolism from 

 subject to subject published as an Institution volume two years ago. 



Biometfic Methods. 



Dr. Harris has, as heretofore, devoted some time to biometric 

 methodology. Formulae for the determination of the correlation of 

 size and of growth increments in the developing organism have been 

 given by Harris (Proc. Soc. Exp. Biol. Med., 18 : 4-5, 1921) and applied 

 by Harris and Reed (Biol. Bull., 40 : 243-288, 1921). 



Culture Methods. 



Dr. A. M. Banta has published in Science the results of more than 

 five years' experience in rearing Cladocera. He recommends a cul- 

 ture solution in which the bacteria that form the principal food of the 

 Cladocera will multiply at the required rate. 



ADMINISTRATIVE RECORD. 

 ARCHIVES OF THE EUGENICS RECORD OFFICE. 



The care of the archives remained in the hands of Miss Louise A. 

 Nelson until June 1, 1921. Thereafter it was assumed by Dr. Elizabeth 

 B. Muncey. Miss Helen Bowen and Miss Helen Brown were indexers. 



On September 1, 1921, it was estimated that there was a total of 

 818,851 cards in the Sextuple Index and 12,000 in the Persons Index. 

 The total number of books in the archives was 1,363. The field re- 

 ports (F) number 50,854 sheets; the Special Traits file (A) amount to 

 22,039 sheets; of the Records of Family Traits (R), and M files there are 

 3,752 numbers; and of the Family Distribution of Personal Traits 

 (D), 1,711 sheets. 



During the summer we were able to make use of the assistance of a 

 number of college students in the preparation of material for the 

 archives and in the analysis of records. Misses Laura Craytor, Bess 

 Lloyd, and Henrietta Yates assisted in collecting standards of mor- 

 bidity rates for 10,000 individuals from the R files, and in collating 

 eye and hair color data. Misses Elizabeth Austin and Isabelle M. 

 Whitefield mounted clippings of biographies, genealogies, and special 

 traits. 



