United States Department of the Interior, Stewart L. Udall, Secretary 
- Fish and Wildlife Service, Clarence F. Pautzke, Commissioner 
Bureau of Commercial Fisheries, Donald L. McKernan, Director 
A MODIFIED BECKMAN 
MODEL DU SPECTROPHOTOMETER 
FOR SEAGOING USE 
By 
Robert W. Holmes and Robert J. Linn 
University of California 
Scripps Institution of Oceanography 
La Jolla, California 
Contribution from Scripps Institution of Oceanography 
United States Fish and Wildlife Service 
Special Scientific Report--Fisheries No. 382 
Washington, D. C. 
July 1961 
