1906. Death-Feigning in Ranatra. Jour. Comp. Neurol. and Psychol., Vol. XVI, pp. 200-216.

1908. The Instinct of Feigning Death. Pop. Sci. Mo., Vol. LXXII, pp. 179-185.

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.