1910. Feeding Reactions of the Rose Coral (Isophyllia). Proc. Amer. Acad. Arts and Sciences, Vol. XLVI, pp. 149-162.

Casteel, D. B.

1911. The Discriminative Ability of the Painted Turtle. Jour. Animal Behavior, Vol. I, pp. 1-28.

Clarke, W. E.

1912. Studies in Bird Migration. Vol. I, pp. 323; Vol. II, pp. 346. London.

Bird migration may be studied as a response of the animals to the conditions of their life, and the above work is a good example of the best kind of work being done along this line.

Cole, L. J.

1907. An Experimental Study of the Image-Forming Powers of Various Types of Eyes. Proc. Amer. Acad. Arts and Sci., Vol XLII, pp. 335-417.

A study of worms, insects, sow bug, snail, slug, and frogs.

1913. Direction of Locomotion of the Starfish (Asterias Forbesi). Jour. Exp. Zoöl., Vol. XIV, pp. 1-32.