288 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Because the observed growth pattern was the 

 opposite from that which would have been 

 expected if heredity were the principal factor 

 determining growth, the conclusions of the experi- 

 ment are not altered. 



9. The experiment demonstrated that environ- 

 ment, not heredity, was the important factor in 

 determining growth of the soft clam. 



LITERATURE CITED 



Belding, David L. 



1930. The soft-shelled clam fishery of Massachusetts. 

 Massachusetts Department of Conservation, Division 

 of Fisheries and Game, Marine Fisheries Series — No. 

 1. 65 pp. 



Kellog, James L. 



1905. Conditions governing existence and growth of 

 the soft clam (Mya arenaria). U. S. Commission of 

 Fish and Fisheries, Report of the Commissioner for 

 1903, pp. 195-224. 



Mead, A. D. 



1900. Observations on the soft-shell clam. Rhode 

 Island Commissioners of Inland Fisheries, 30th 

 Annual Report, pp. 20-42. 



Newcombe, Curtis L. 



1935. Growth of Mya arenaria in the Bay of Fundy 

 region. Canadian Journal of R<>search, vol. 13, sec. 

 D, No. 6 (December), pp. 97-137. 



QUENOtriLLE, M. H. 



1950. Introductory statistics. 

 Ltd., London. 248 pp. 



Butterworth-Springer 



Snedecor, George W. 



1946. Statistical methods. Iowa State College Press, 

 Ames, Iowa. 4th ed. 485 pp. 



Turner, Harry J., Jr. 



1948. Report on investigations of the propagation of 

 the soft-shell clam, Mya arenaria. Massachusetts 

 Department of Conservation, Division of Marine 

 Fisheries (also Woods Hole Oceanographic Institution, 

 Contribution No. 462), pp. 11-42. 



