MUSEUM OF COMPARATIVE ZOOLOGY. 27 



The degree of A. M. was conferred on three students whose 

 work was wholly or almost wholly in Zoology. 



The continued generosity of the Curator of the Museum and 

 the Corporation has permitted the publication in the Museum 

 Bulletin of the greater number of the following Contributions 

 from the Zoological Laboratory, all of which have appeared since 

 my last Report : — 



LXX. Jennings, H. S. — The Early Development of Asplanchna 

 Herrickii de Guerne. A Contribution to Developmental Mechanics. 

 Bull. Mus. Comp. Zool., Vol. XXX. No. 1, pp. 1-118. 10 Pis. Octo- 

 ber, 1896. 



LXXI. Neal, H. V. — A Summary of Studies on the Segmentation of 

 the Nervous System in Squalus acanthias. A Preliminary Notice. 

 Anat. Anzeiger, Bd. XII. No. 17, pp. 377-391. 6 Figs. October 20, 

 1896. 



LXXII. Davenport, C. B., and Cannon, W. B. — On the Determina- 

 tion of the Direction and Rate of Movement of Organisms by Light. 

 Jour, of Physiol., Vol. XXXI. No. 1, pp. 27-32. 1 Fig. February 5, 

 1897. 



LXXIII. Davenport, C. B., and Bullard, C. — Studies in Mor- 

 phogenesis, VI. A Contribution to the Quantitative Study of 

 Correlated Variation and the Comparative Variability of the 

 Sexes. Proc. Amer. Acad., Vol. XXXII. No. 4, pp. 87-97/ De- 

 cember, 1896. 



LXXIV. Mayer, A. G. — On the Color and Color-Patterns of Moths and 

 Butterflies. Bull. Mus. Comp. Zool., Vol. XXX. No. 4, pp. 167-256. 

 10 Pis. Feb. [Mar.], 1897. Also Proc. Bost. Soc. Nat. Hist., Vol. 

 XXVII. No. 14, pp. 243-330. 10 Pis. March, 1897. 



LXXV. Parker, G. H. — The Mesenteries and Siphonoglyphs in Me- 

 tridium marginatum Milne-Edwards. Bull. Mus. Comp. Zool., Vol. 

 XXX. No. 5, pp. 257-272. 1 PI. March, 1897. 



LXXVI. Parker, G. H. — Photomechanical Changes in the Retinal 

 Pigment Cells of Palsemonetes, and their Relation to the Central 

 Nervous System. Bull. Mus. Comp. Zool., Vol. XXX. No. 6, pp. 

 273-300. 1 PL April, 1897. 



LXXVII. Bunker, F. S. — On the Structure of the Sensory Organs of 

 the Lateral Line of Ameiurus nebulosus Le Sueur. Anat. Anzeiger, 

 Bd. XIII. No. 8 u. 9, pp. 256-260. March 3, 1897. 



LXXVIII. Wood worth, W. McM. — On a Method of Graphic Recon- 

 struction from Serial Sections. Zeitschr. f. wiss. Mikr., Bd. XIV. 

 No. 1, pp. 15-18. July, 1897. 



