OFFICE OF EXPERIMENT STATIONS. 2l7 



tiiral investigations in the Philippines and to locate and maintain an 

 agricultural experiment station there. In order that these investiga- 

 tions may be begun at an early day, one-third of this amount should 

 be made immediately available. 



Nutrition Investigations. 



The investigations on the food and nutrition of man, carried on in 

 different parts of the country, have been continued during the past 

 year, A^dtli Prof. W. O. Atwater as special agent in charge. The 

 headquartei's for these investigations have remained at Middletown, 

 Conn., where the work is carried on in cooperation with Weslej^an 

 University and the Storrs Experiment Station. 



As in previous years, the work is done largely in connection with 

 the experiment stations, colleges, and universities, some of the lead- 

 ing institutions in the country being represented among the cooper- 

 ators. This policy secui'es the services of skilled investigators, 

 utilizes the resources of the institutions, secures an amount of valu- 

 able research very large in proportion to the cost, awakens widespread 

 interest, and helps to give large and useful publicity to the results. 



Following is a list of the cooperators during the year, and of the 

 institutions with which they are connected : 



Maine: State University and Experiment Station, Prof. C. D. Woods and 

 associates. 



Massachusetts: Harvard University. Dr. E. A. Darling, Mr. Edward Mailinck- 

 rodt, jr. 



Connecticut: Wesleyan University and Storrs Experiment Station, Prof. W. O. 

 Atwater and associates. 



New York: Columbia University, Dr. H. C. Sherman. 



Tennessee: State University. Prof. C. E. Wait and associates. 



Illinois: State University. Prof. H. S. Grindley. 



Minnesota: State University and Agricultural College. Prof. Harry Snyder. 



California: State University and Experiment Station, Prof. M. E. Jaffa. 



The publications of the year have also included work of the follow- 

 ing: North Dakota — State Agricultural College, E. F. Ladd; Ohio — 

 Lake Erie College, Miss Isabel Bevier. 



general purpose and plan of the investigations. 



The nutrition investigations the past year may be divided into four 

 general classes: (1) Dietary studies; (2) digestion experiments; (3) 

 cooking experiments; (4) metabolism experiments. 



The dietary studies have been conducted in various parts of the 

 United States, and have included the study of the diet of peoijle of 

 varying ages and occupations under different conditions. They fur- 

 nish a considerable amount of data as to the actual food habits of 

 persons in different parts of the country, give opportunity for com- 

 parison with the data obtained in other countries, and aid in establish- 

 ing a general nutrition standard. 



The digestion experiments have also been conducted in different 

 parts of the country under widely varying conditions. By means of 

 these experiments the digestibility of various classes of food materials, 

 like meats, cereals, legumes, fruits, nuts, etc., is studied and data are 

 obtained as to the amount of the food material consumed which is 

 made available for use in the human body. 



The cooking experiments have been made with meat, and have 

 included the study of the effects of different methods of cooking upon 



