102 U. S. BUREAU OF FISHERIES 



The laboratory was designed and equipped by the bureau's tech- 

 nologists and is particularly well adapted for fishery research. Prac- 

 tically all of the equipment was designed for specific purposes and is 

 particularly adapted for the study of the problems for which it is 

 intended. 



In June of 1931, two of the technologists, from the Washington 

 staff, were transferred to Gloucester to continue their activities in 

 this laboratory. In addition to these, and the one previously 

 assigned there, three new technologists were appointed, for assignment 

 to this laboratory, to assist in the studies being conducted there. 

 The staff of this laboratory also includes a clerk and an expert 

 mechanic. 



During this transfer of activities, from Washington to Gloucester, 

 it was necessary for the study of some of the problems to be suspended 

 for a period. These were resumed the latter part of the year, when 

 the laboratory had been completely equipped with the necessary 

 apparatus. 



SEATTLE, WASH. 



During 1931 the division provided equipment for a technological 

 laboratory on the second floor of the bureau's new fisheries station on 

 Lake Union in Seattle, Wash. It is planned to begin technological 

 investigations there in 1932, when studies will be made on the manu- 

 facture of salmon body and liver oils. 



NUTRITIVE VALUE OF MARINE PRODUCTS 

 NUTRITION LABORATORY 



In the course of the bureau's investigative work it is necessary 

 to determine the comparative food values of various fishery products, 

 the relative efficiency of dift'erent processes of manufacture, methods 

 for evaluating and comparing the products experimented with by its 

 technologists, and the effects or changes on food values resulting 

 from manufacturing by canning, curing, smoking, and freezing. 

 Without means for accomplishing these things there would be no 

 standard of comparison of results or means for evaluating products 

 produced in different ways. Thus it became essential for the proper 

 conduct of its work to make provisions for nutrition work. Co- 

 operative arrangements with other agencies temporarily enabled the 

 bureau to care for some of the more pressing problems having to do 

 with commercial products. To promote the efficiency of the program 

 of research of its own technologists and to standardize the products 

 of industry the bureau has provided nutrition laboratory facilities 

 and began experimental work in its own laboratory in Washington, 

 D. C, in July, 1931. This has been one of the most important con- 

 tributions made in recent years to the effectiveness of its own work 

 and productive of beneficial results to industry. 



BURBOT-LIVER OIL 



Under a working arrangement with the Bureau of Chemistry and 

 Soils, United States Department of Agriculture, as described in the 

 1929 and 1930 reports of this division, Dr. Chester D. Tolle, of the 

 bureau, and Dr. E. M. Nelson and Dr. G. S. Jamieson, of the Bureau 



