a. Growth and regeneration of alimentary mucosa. (Mammalia) 

 b Effect of radiation on embryological development. (Amphibia: Aves) 

 ODOR Miss D. L. M.S.. Ph.D. — School of Med.. Univ. of Washington, 



SEATTLE 5. Wash., U.S.A. 

 a. First and second maturation divisions and fertilization stages of ova. 



Rattus ncrveaicus albinus (Rodentia) 

 O'FARRELL. A. F. B.Sc. ARCS — Dept of Zool. Univ. of New Eng- 

 land, ARMIDALE, N.S.W., Australia 

 a. Regeneration and the endocrine system. Blattella gcrmamca (Dictyo- 



ptera, Insecta) (in collaboration with A. STOCK and Miss 



J. MORGAN) 

 OIKAWA. Miss I. B.Sc. — Fac. of Education, Kochi Univ.. KOCHI, 



Japan 



— Research Inst, of Applied Electricity, Hokkaido Univ., SAPPORO. 



Japan 



a. Membrane potential of the egg. Salmo (Teleostei) 



b. Relation between stage of development, structure and phosphorus meta- 

 bolism. Rana nigromaciilata (Anura) 



OKA, H. Ph.D. (Tokyo), Prof. — Inst, of Zool. Univ. of Education, Otsu- 



ka-Kubomachi 24, Bunkyoku. TOKYO. Japan 

 OKADA. K. D.Sc, Prof. — Biol. Inst.. Gakugei Fac. Tokushima Univ.. 



TOKUSHIMA. Japan 



a. Experimental studies on the animalization and vegetalization of gastru- 

 lae. Hemicentrotus pulcherrimus (Echinoidea) 



b. Morphological studies on the cortical reactions of artificially inseminated 

 eggs. Nereis japonica (Polychaeta) 



OKADA, T. S. — Lab. of Embryol. and Exper. Morphol.. Zool. Inst.. Dept 

 of Sci., Kyoto Univ.. KYOTO. Japan 



a. Developmental mechanisms of the differentiation of the presumptive 

 endoderm. Triturus pyrrhogaster, Hynobius nebulosus (Urodela) 



b. Regional differences of induced structure. (Amphibia) 



OKADA, Y. K. F.I. I.E., M.J. A.. Dr. Prof. — Nat . Mus. of Nat. Sci.. Ueno- 

 Park, Daito-ku, TOKYO. Japan 

 a. Normal table of the development. Balacnoptera physalus, Megaptera 



novaeangliae, Stenella caeruleo-albus (Cetacea) 

 h. Sex and sex-reversal. Spams longispinis, Pagrosomus unicolor, Oryzias 

 latipes, etc. (Teleostei) 

 OKAZAKI, Miss K. — Embryol. Section. Dept of Biol. Tokyo Metropolitan 

 Univ., Setagaya-ku, TOKYO, Japan 



a. A study of skeleton formation. (Echinodermata) 



b. Mechanism of gastrulation. (Echinoidea) 



OKAZAKI. R. M.A. — Biol. Inst.. Fac. of Sci., Nagoya Univ., Chigusa-Ku, 

 NAGOYA, Japan (Amphibia) 



a. Critical studies on the inducing capacity of the devitalized organizer. 



b. Biochemical and biophysical studies of cleavage. (Echinodermata, Am- 

 phibia) 



OKSCHE. A. A. DrMed. — Anat. Inst, der Univ.. Robert Kochstr. 6, 



MARBURG Lahn. Deutschland 



a. Anderungen des Kaulquappen-Wachstums nach beiderseitiger Augen- 



Extirpation. Es soil hicrbei die Rolle des Hypophysen-Zwischenhirn- 



Systems und der Epiphyse untersucht werden. Xenopus laevis (Anura) 



77 



