Preface 



This research was done as part of a project 

 supported by an allotment made by the Secretary 

 of Agriculture from Special Research Funds (Bank- 

 head-Jones Act of June 29, 1935). 



Staff members in the Human Nutrition Re- 

 search Division responsible for the results reported 

 in this publication were as follows: 



Mildred Adams, Research Chemist. Organi- 

 zation and evaluation of data; preparation of 

 report. 



Elizabeth C. Hartman, 1 Nutrition Physiologist. 

 Initiation of this investigation ; general supervision 

 for the longevity studies. 



Anna M. Allen Durand, Medical Officer (His- 

 tology). Evaluation of histological findings in 

 the tissues. 



Murray Fisher, Biologist. General supervision 

 of experimental animals; collection of data on 

 organ weights; evaluation of gross findings at 

 necropsy; preparation of tissues for histological 

 examination. 



Doris D. Taylor, Nutrition Specialist, and 

 Emily S. Conway, Biological Aid (Gen.). Chemi- 

 cal analysis of diets, livers, kidneys, and serum 

 cholesterol. Mrs. Conway also assisted in com- 

 piling and tabulating the data. 



Hazel E. Hildebrand, Nutrition Specialist. 

 Calorie determinations. 



Florence L. Lakshmanan, Biochemist, and 

 Donald Higginbotham, 2 Biochemist. Electro- 

 phoretic analysis of serum. 



Mention of specific products throughout this 

 publication does not imply recommendation by 

 the U.S. Department of Agriculture over other 

 products of a similar nature not mentioned. 



1 Present address: Chief, Training Grants and Awards 

 Branch, Extramural Programs, National Institute of 

 Neurological Diseases and Blindness, National Institutes 

 of Health, Bethesda, Md. 



2 Present address: E. I. duPont deNemours & Co., 

 Textile Fibers Department, Dacron Division, Kinston, 

 N.C. 



