41. The mineral content of the odiblo portions of some American 



fishery products. By Hugo W. Nilson and E. J. Coulaon. 

 Investigational Reports of the Buraau of Fisheries , Depart- 

 ment of Coimerce, vol. II, pp. 7, 1939 (I9U- ) . 



42. A plan for the development of the Hawaiian fisheries. By 



Frank T. Bell and Elmer Higgins. Investigational Reports 

 of the Bureau of Fisheries, Department of Commerce, vol. II, 

 pp. 25, 2 figs., 1939(1914-). 



43. Some effects of ultraviolet irradiation of haddock fillets. 



By Joseph F. Puncochar, William B. Lanham, Jr., and Hugo VJ. 

 Nilson, Investigational Reports of the Bureau of Fisheries, 

 Department of Commerce, vol. II, 8 pp., 5 figs., 1939(19*+-) 



44. Study of the metabolism of naturally occurring fluorine in 



canned salmon and mackerel. By Charles F. Lee and Hugo W. 

 Wilson. Investigational Reports of the Bureau of Fisheries, 

 Department of Commerce, vol. II, pp. 15, figs, 5, 1939(l9l4-), 



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