114 ANIMAL ECOLOGY 



1911. The Evolution of Animal Intelligence, pp. 296. 



New York. 



JENNINGS, H. S. 



1910. Diverse Ideals and Divergent Conclusions in the Study 

 of Behavior in Lower Organisms. Amer. Jour. 

 Psychol., Vol. XXI, pp. 349-370. 

 Valuable for its discussion of points of view in the 

 study of behavior. 



KELLOGG, J. L. 



1900. Observations on the Life-History of the Common Clam, 

 Mya Arenaria. Bull. U. S. Fish and Fisheries 

 Comm. for 1899, Vol. XIX, pp. 193-202. 



1903. Feeding Habits and Growth of Venus Mercenaria. 



Bull. 71, N. Y. State Museum, pp. 27. Albany. 



1904. Conditions Governing Existence and Growth of the 



Soft Clam (Mya Arenaria). Rep. U. S. Comm. 

 Fish and Fisheries for 1903, pp. 195-224. 

 A suggestive paper. 



1905. Notes on Marine Food Mollusks of Louisiana. Bull. 



No. 3, Gulf Biologic Station, pp. 43. Baton 

 Rouge. 



All of these papers by Kellogg are careful studies of 

 the relation of animals to their environment. They 

 also show the intimate relation of ecology to economic 

 problems. Biological surveys intended for economic 

 results should be ecological in their method. 

 1910. Shell-Fish Industries, pp. 361. New York, Henry 

 Holt and Co. 



A popular summary of the marine shell-fish industries 

 of the American coast, from the standpoint of their 

 biology, culture, and utilization. The oyster, hard 

 and soft clams, and scallops are considered. The 

 following subjects deserve mention: ciliary action, 

 feeding reflexes, function of mucus, and food. 



LEFEVRE, G., and CURTIS, W. C. 



1912. Studies on the Reproduction and Artificial Propaga- 



