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1941. A survey of tuna fishing grounds on the Mar- 

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 W. G. Van Campen (translation editors), Exploratory- 

 tuna fishing in the Marshall Islands, p. 1-4. U. S, 

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Jordan, David Starr, Barton Warren Evermann, and Howard 

 Walton Clark. 



1955. Check list of the fishes and fishlike vertebrates 

 of North and Middle America north of the northern 

 boundary of Venezuela and Colombia. [Reprint of 

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 of Fisheries for the fiscal year 1928; originally 

 issued February 1930.] U. S. Fish and Wildlife 

 Service, Washington, D. C., 670 p. 



Kalmbach, E. R. 



1940. Economic status of the English sparrow in the 

 United States. U. S. Department of Agriculture. 

 Technical Bulletin 711, 66 p. 



Leach, Glen C, M. C. James, and E. J. Douglass. 



1941, Propagation and distribution of food fishes, 

 fiscal year 1940. [U. S.] Bureau of Fisheries, Report 

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 1940, appendix 4 (Administrative Report No. 42), 

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Lincoln, Frederick C. 



1950. Migration of birds. U. S. Fish and Wildlife 

 Service, Circular 16, 102 p., 23 figs. 



Markus, Henry C. 



1939. Propagation of bait and forage fish. [U. S.J 

 Bureau of Fisheries, Fishery Circular No. 28, 19 p., 

 10 figs. 



Marr, John C. 



1948. Observations on the spawning of oceanic skip- 

 jack ( Katsuwonus pelamis) and yellowfin tuna (Neothunnus 

 macropterus) in the northern Marshall Islands, fn 

 Milner B. Schaefer and John C. Marr, Contributions 

 to the biology of the Pacific tunas, p. 201-206. U. S. 

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Martin, A[lex] C, and F[rancis] M. Uhler. 



1951. Food of ganne ducks in the United States and 

 Canada. U. S. Fish and Wildlife Service, Research 

 Report 30, 308 p. (Reprint of U. S. Department of 

 Agriculture Technical Bulletin 634 (1939).) 



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