— 53 — 



Emibryologia (en. 013). 

 Beard, J. 013. 



1897. The Rhythm of Reproduction in Mammalia. Aiiat. Auz., Bd. 14 

 No. 4 p. 07 — 103. [Resume of a chapter in : The Span of Gestation and 

 the Cause of Birth. Jena, Gust. Fischer.] 



Child, CM. .013. 



1897. Centrosorae and Sphere in the Ovarian Stroma of Mammals. 

 (Zool. Club, Univ. Chicago.) Science, N. S. Vol. 5 Pfo. 110 p. 231—232. 



[Present in cells not undergoing mitosis, but only in pregnant or re- 

 cently pregnant individuals.] 



Coiiklin, Edwin Orant. .013 



1897. The Embryology of Crepidula. A Contribution to the Cell Lineage 

 and early Development of some Marine Gasteropods. Journ. Morph., Vol. 13 

 No. 1 p. 1 — 22Ö. 9 Pis. 13 Diagrams. [Chief axis of ovum = dorso- 

 ventral axis of embryo. First cleavage transverse, second sagittal. 

 Even first cleavage ,, spiral". Formation of germ layers and of organs. 

 Epibolic gastrula. Shifting of axes. Yery detailed observations leading 

 to assertion of cell homologies between Annelids, Gasteropods and La- 

 mellibranchs and of extended region homologies. Besides mechanical 

 factors, phylogenetic and prospective intrinsic factors. Also observations 

 on other Prosobranchs. Structure and breeding habits of C. Abnorm- 

 alities.] 

 Dean, Basliford. .013. 



1897. On the Plan of Development of a Myxinoid. (Amer. morph. Soc.) 

 Science, N. S. Vol. 5 No. 115 p. 435. [Dissimilarity of Bdellostowa and 

 Petromyzon.] 



Dean, Basliford, Nathan R. Harrington, Gary N. .013. 



Calkins and Bradney B. Griffin. 



1897. The Columbia University zoological expedition of 1896. With 

 a brief account of the work of collecting in Puget Sound and on the 

 Pacific Coast. Trans. N. Y. Acad. Sc, Vol. 16 p. 33—42. [Principally 

 embryos of Chimnera and Ddellostoma, 22 stages of the latter. Also 

 many other Invertebrates and Vertebrates.] 



F^r^, Ch. .013. 



1897. Note sur le developpement et sur la position de I'embryon du 



Poulet dans les ouefs ä deux jaunes. C. R. Soc. Biol. Paris, (10) Tome 4 

 No. 29 p. 858—860. 



F^r^, Ch. .013. 



1897. Nouvelles experiences relatives aux inclusions foetalea. C. R. 

 Soc. Biol. Paris, (10) Tome 4 No. 2!) p. 861. 



Huhrecht, A. A. W. 013. 



1897. Over die kiemblaas van mensch en aap en hare beteekenis voor 

 de phylogenie der Primaten. Versl. wit. nat. Afd. Akad. Wet. Amsterdam, 

 D. 5 p. 23 — 25. [Systematische Stellung von Tarsius.'] 



Kopsch, Fr. 013. 



1896. Bildung und Bedeutung des Canalis neurentericus. Sitz.-Ber. Ges. 

 nat. Fr. Berlin, No. 10 p. 165 — 174. [Amphibien, Selachier, Knochenfische.] 



