256 PROCEEDINGS OF THE ACADEMY OF [1896. 



269 — A new atlas of embryology. Amer. Nat., 1888, p. 1134- 

 1135. (Review of M. Duval's work). 



270 — New studies of the human embryo. Amer. Nat., 1889, pp. 

 171-172. (Review of work of M. C. Phisalix). 



271 — On the development and first traces of the anterior roots of 

 the spinal nerves in selachians. Amer. Nat., 1889, pp. 172-173. 

 (Review of Dohrn's paper). 



272 — The maturation and fertilization of the egg of Petromyzon 

 planeri. Amer. Nat., 1889, p. 173. (Review of A. A. Bohm's pa- 

 per). 



273 — The structure of the human spermatozoon. Amer. Nat., 

 1889, pp. 183-184 (Vol. irregularly paged). (Review of E. M. Nel- 

 son's paper). 



274 — Development of Crangon vulgaris. Amer. Nat., 1889, pp. 

 737-788. (Review of J. W. Kingsley's paper). 



275 — Development of Sepia officinalis. Amer. Nat., 1889, p. 

 738. (Review of M. L. Vialleton's paper). 



276 — Extra-ovarian primordial ova in the human embryo. Amer. 

 Nat., 1889, p. 827. (Review of W. Nagel's paper). 



277 — Placentation of the hedgehog and the phylogeny of the 

 placenta. Amer. Nat., 1890, pp. 376-378. (Review of Hubrecht's 

 paper). 



278 — "A theory of development and heredity," by Henry D. Orr. 

 Amer. Nat., 1894, pp. 154-156. (Review). 



