NUTRITION INVESTIGATIONS. 29 



institutions as offer exceptional facilities and so systematizing the 

 work that it can be carried on from year to 3'ear as a part of a con- 

 sistent plan. Experience has shown that this method is very suc- 

 cessful and that the returns are large for the sums invested. In 

 considerable measure this is due to the generous support of the co- 

 operating institutions. These have contributed in some cases money 

 and in practically all cases the use of laboratories, chemicals, appa- 

 ratus, libraries, the advice and counsel of skilled experts, and similar 

 assistance, so that the Department funds available for nutrition 

 ATork have been materially extended. The value of association with 

 the Department in such work is highly appreciated by the cooperat- 

 ing institutions, as is shown by their readiness to continue the work 

 and by the numerous opportunities which arise for extending the 

 work should Department funds permit. 



THE WORK AT DIFFERENT PLACES, 



The Washington office, in charge of Dr. C. F. Langworthy, has 

 had the general supervision of the plans and expenditures of nu- 

 trition investigations during the past year, and, in cooperation with 

 collaborators, has made detailed plans for the various experiments 

 which have been undertaken. As in the past, editorial work has been 

 an important feature, and has included the final preparation of re- 

 ports for publication, and the preparation of popular bulletins and 

 summaries. The collection of bibliographical data relating to nutri- 

 tion has been continued, and also the preparation of abstracts and 

 reviews of the current literature of the subject, partly for use in 

 the Experiment Station Eecord and the series of Farmers' Bulle- 

 tins entitled " Experiment Station Work,'" and partly for such other 

 purposes as has seemed desirable in connection with the general in- 

 quiry. Many teachers, students, and specialists have been supplied 

 by correspondence and in other ways with information and data 

 which are not readily accessible in printed form, and data on nutrition 

 have been collected at the request of Members of Congress and of 

 different branches of the General Government. The increase in cor- 

 respondence, the growing demand for nutrition publications, and the 

 large number of requests for lectures and informal talks on the sub- 

 ject indicate that the popular interest in nutrition work is increasing 

 markedlv. 



Under the immediate supervision of the Office a Farmers' Bulletin, 

 baeed on experimental and practical studies, was prepared by Miss 

 Maria Parloa on the cooking of vegetables. In a similar wav inves- 

 tigations on household methods of canning vegetables have been con- 

 ducted by Miss Isabel F. Hyams, of the Massachusetts Institute of 

 Technology, and by Miss Charlotte Bragg, professor of chemistry 



