12 ANNUAL REPORT OF THE 



Contributions from the Zoological Laboratory for the Academic Year 



1902-03. 



135. Strong, R. M. — The Development of Color in the Definitive 

 Feather. Bull. Mus. Comp. Zool., Vol. 40, No. 3, pp. 145-185. 

 9 pis. October, 1902. 



136. Castle, W. E. — Mendel's Law of Heredity. Proc. Amer. 

 Acad. Arts and Sciences, Vol. 38, No. 18, pp. 533-548. Janu- 

 ary, 1903. 



137. Castle, W. E. — The Heredity of Sex. Bull. Mus. Comp. Zool., 

 Vol. 40, No. 4, pp. 187-218. January, 1903. 



138. Parker, G. H. — The Optic Chiasma in Teleosts and its Bear- 

 ing on the Asymmetry of the Heterosomata (Flat Fishes). Bull. 

 Mus. Comp. Zool., Vol. 40, No. 5, pp. 219-242. 1 pi. January, 

 1903. 



139. Mark, E. L. — A Paraffine Bath heated by Electricity. Amer. 

 Nat., Vol. 37, No. 434, pp. 115-119. 3 figs. February, 1903. 



140. Adams, G. P. — On the Negative and Positive Phototropism of 

 the Earthworm Allolobophora foetida (Sav.) as determined by 

 Light of Different Intensities. Amer. Jour, of Physiol., Vol. 9, 

 No. 1, pp. 26-34. 2 figs. March, 1903. 



141. Prentiss, C. W. — Potydactylism in Man and the Domestic 

 Animals, with especial Reference to Digital Variations in Swine. 

 Bull. Mus. Comp. Zool., Vol. 40, No. 6, pp. 243-314. 22 pis. 

 and 26 figs. April, 1903. 



142. Castle, W. E., and Allen, G. M. — The Heredity of Albi- 

 nism. Proc. Amer. Acad. Arts and Sciences, Vol. 38, No. 21, 

 pp. 601-622. April, 1903. 



