270 CARNEGIE INSTITUTION OF WASHINGTON. 



or so-called "extra foods," has been continued by Mrs. Cornelia Golay 

 Benedict. Among the food materials studied the past year are vari- 

 ous cream cheeses, candies (mostly of the penny variety), sardines, 

 olives, nuts, doughnuts, and a number of crackers. A second report 

 of the results of this study has been prepared for publication. In this 

 investigation Mrs. Benedict has been assisted by Miss Mary D. Finn 

 and Mrs. S. C. Stickney. 



Metabolism of cold-blooded animals. — As Mr. Edward L. Fox was 

 called into National service in the summer of 1918, the researches at the 

 New York Zoological Park on the metabolism of cold-blooded animals, 

 and especially of snakes, were discontinued for a time, but were resumed 

 in July 1919. 



Editorial and computing work. — The two monographs published this 

 year, i.e., the report of the study on metabolism during undernutrition, 

 a book of 700 pages, and the biometric study of basal metabolism of 

 man, with its novel and hence especially guarded technicalities, re- 

 quired the major portion of the time of several members of the staff 

 during the year for proof-reading and attention to the numerous techni- 

 cal details. A number of journal articles have also been prepared, 

 giving summaries of results which will appear later in more detail in 

 other publications. Several monographs and journal articles are now 

 in preparation for publication. The mass of experimental material 

 which has accumulated in the various researches required a temporary 

 enlargement of the computing staff. Plans are being made for print- 

 ing in permanent form the various tables, formulae, etc., employed in 

 computing metabolism experiments, for the general use of investigators. 



PUBLICATIONS. 

 The following publications have been issued during the present year: 



(1) The sex expression of men living on a lowered nutritional level. W. R. Miles. Journ. 



Mental and Nervous Disease, 49, 208 (1919). 



This paper gives a detailed presentation of sex data collected in connection 

 with the low-diet investigation reported in the monograph entitled Human 

 Vitality and Efficiency under Prolonged Restricted Diet (Carnegie Inst. 

 Wash. Pub. No. 280, 1919). The introspective accounts which form the 

 basis of this paper were obtained under the most favorable circumstances. 

 Of the 24 individuals studied, 22 report a decrease in sex interest and expression 

 associated with the period of undernutrition. Any recommendation for 

 general reduction in diet must therefore regard the probable effect on the sex 

 instinct. The results suggest a method of treatment for achieving restraint 

 in pathological cases. 



(2) The concentration of alcohol in the tissues of hens after inhalation. T. M. Carpenter 



and E. B. Babcock. Proc. Am. Physiol. Soc, Am. Journ. Physiol., 49, 128 

 (1919). 



An abstract presented at the 1919 meeting of the American Federation of 

 Biological Societies of some of the data obtained in the investigation of the 

 concentration of alcohol in the tissues of hens after inhalation. 



