WALBURG, C[HARLES] H. --Continued 



1957a. Neuse River shad investigations, 



1953. U.S. Fish Wildl. Serv., Spec.Sci. 



Rep. Fish. 206, iii + 13 p. 

 1957b. Observations on the food and growth 



of juvenile American shad, Alosa 



sapidissima . Trans. An-ier. Fish. Soc. 



86: 302-306. 

 1960a. Abundance and life history of 



shad, St. Johns River, Florida. U.S. 



Fish Wildl. Serv., Fish. Bull. 60: 487- 



501. 

 1960b. Abundance of St. Johns River shad. 



Trans. 25th N. Amer. Wildl. Conf.: 



327-333. 

 1961. Natural nnortality of American shad. 



Trans. Amer. Fish. Soc. 90(2): 228-230. 

 1963. Parent-progeny relation and estima- 

 tion of optimum yield for American 



shad in the Connecticut River. Trans. 



Amer. Fish. Soc. 92(4): 436-439. 

 WALBURG, CHARLES H., and JAMES E. 

 SYKES. 

 1957. Shad fishery of Chesapeake Bay with 



special ennphasis on the fishery of 



Virginia. U.S. Fish Wildl. Serv., Res. 



Rep. 48, iii + 26 p. 



WARFEL, HERBERT E., and YNGUE H. 

 OLSEN. 

 1947. Vertebral counts and the problem of 

 races in the Atlantic shad. Copeia 1947 

 (3): 177-183. 

 WHITNEY, RICHARD R. 



1961. The Susquehanna fishery study 1957- 

 1960. Md. Dep. Res. Educ, Solomons 

 (Contrib. 169) and Susquehanna Elec. 

 Co., Conowingo, Md. 81 p. 

 WILLEY, A. 



1923. Notes on the distribution of free- 

 living Copepoda in Canadian waters. 

 Contrib. Can. Biol. 1: 303-334. 

 WORTH, S. G. 



1893. Observations on the spawning habits 

 of the shad. U.S. Fish Comm., Bull. 

 11: 201-206. 

 1898. The shad. U.S. Comm. Fish Fish., 

 pt. 23, Rep. Comm., 1897: 133-158. 

 YARROW, H. C. 



1874. Report of a reconnaissance of the 

 shad- rivers south of the Potomac. U.S. 

 Comm. Fish Fish., pt. 2, Rep. Connm. 

 1872-1873: 396-402. 



MS. #1574 



105 



