32 annual report of the 



Zoological Laboratory. 

 Contributions : — 



322. Adolph, E. F. — Egg-laying reactions in the pomace fly, 



Drosophila. Journ. exper. zool., October, 1920, 31, p. 327- 

 341. 



323. Parker, G. H. — Activities of colonial animals. I. Circula- 



tion of water in Renilla. Journ. exper. zool., October, 1920, 

 31, p. 343-368, 1 pi. 



324. Olmsted, J. M. D. — The results of cutting the seventh cranial 



nerve in Amiurus nebulosus (Lesueur). Journ. exper. zool., 

 November, 1920, 31, p. 369-401, 4 pis. 



325. Parker, G. H. — Activities of colonial animals. II. Neuro- 



muscular movements and phosphorescence in Renilla. Journ. 

 exper. zool., November, 1920, 31, p. 475-516, 1 pi. 



326. Dawson, A. B. — The integument of Necturus maculosus. 



Journ. morph., December, 1920, 34, p. 487-589, 6 pis. 



327. Fulton, J. F., Jr. — The controlling factors in amphibian 



metamorphosis. Endocrinology, January, 1921, 5, p. 67-84. 



328. Wheeler, G. C. — The phototropism of land snails. Comp. 



psychol, April, 1921, 1, p. 149-154. 



329. Parker, G. H. — The locomotion of the holothurian Stichopus 



panimensis [ = parvimensis] Clark. Journ. exper. zool., May, 

 1921, 33, p.205-208. 

 331. Parker, G. H. — The power of adhesion in the suckers of 

 Octopus bimaculatus Verrill. Journ. exper. zool., July, 1921 1 

 33, p. 391-394. 



Bermuda Biological Station for Research. 



Contributions : — 



116. Crozier, W. J. — Note on the photic sensitivity of the Chitons. 



Amer. nat., July-August, 1920, 54, p. 376-380. 



117. Crozier, W. J. — On the role of an integumentary pigment in 



photoreceptio*n in Holothuria. Journ. gen. physiol., Septem- 

 ber, 1920, 3, p. 57-60. 



118. Crozier, W. J. — Notes on the bionomics of Mellita. Amer. 



nat, September-October, 1920, 54, p. 435-442. 



