Wurmbach-Zot 



b. Formbildende Krafte beim Wachstum (Wachstumsdynamik); formbil- 

 dende Bedeutung der Gewebe. Bu[o spec. (Anura), (Aves) 

 WYTTENBACH. C. R. A.B.. M.A. — Dept of Embryol.. Carnegie Inst, 

 of Washington. Wolfe and Madison Sts, BALTIMORE 5. Md. U.S.A. 

 a. Chemodifferentiation of the embryonic nervous system. Gallus gallus 

 (Aves) 

 XAVIER MORATO. M. J. Prof. — Inst, de Histol. e Embriol.. Fac. dc 

 Med.. Avenida 28 de Maio. LISBOA, Portugal 

 a. Development of the area postrema. Oryctolagus cuniculus (Lagomorpha) 

 YAFFE. D. M.Sc. — Dept of Exper. Biol., Weizman Inst, of Sci., REHO- 

 VOTH, Israel 

 a. The distribution and synthesis of organ-specific proteins: antigens and 

 enzymes. Gallus spec. (Aves), Mus spec. (Rodentia) (in collaboration 

 with M. FELDMAN) 

 YAGIU. R. D.Sc. Prof. — Zool. Lab.. Fac. of Sc, Hiroshima Univ.. HIRO- 

 SHIMA CITY, Japan 

 YAJIMA. H. M.A. — Embryol. Section. Dept of Biol.. Tokyo Metropolitan 

 Univ.. Setagaya-ku. TOKYO. Japan 

 a. Embryonic determination. Harlequin-fly (Diptera) 

 YAMADA. T. D.Sc. Prof. — Biol. Inst.. Fac. of Sci.. Nagoya Univ.. Chi- 

 gusa-Ku. NAGOYA. Japan 



a. Isolation of the bone marrow factor, which is responsible for induction of 

 mesodermal structures in the ectoderm of the gastrula. (Amphibia, Mam- 

 malia) (in collaboration with K. TAKATA and S. OSAWA) 



b. Electronmicroscopic study of elaboration of the cell structures during the 

 early phase of differentiation. Triturus pyrrhogaster (Urodela) (in col- 

 laboration with S. KARASAKI) 



c. The effect of mesoderm and mesectoderm on the differentiation of the 

 isolated areas of the endoderm of the neurula. Triturus spec. (Urodela) 

 (in collaboration with Miss C. TAKATA) 



YAMAMOTO, K. M.Sc. D.Sc. Prof. — Lab. of Fresh-water Fish Cul- 

 ture. Dept of Biol.. Fac. of Fish.. Hokkaido Univ.. HAKODATE, 

 Japan 

 a. Studies on the formation of eggs. (Teleostei) 

 YAMAMOTO. T. D.Sc, Prof. — Biol. Inst.. Fac. of Sci.. Nagoya Univ., 

 Chigusa-Ku. NAGOYA. Japan 

 a. On the mechanism of fertilization and activation. Oryzias latipes (Teleos- 

 tei) 

 h. Artificial induction of functional sex-reversal. Oryzias latipes (Teleostei) 

 c Melanin formation in color phenotypes. Oryzias latipes (Teleostei) (in 

 collaboration with T. HISHIDA and H. TOMITA) 

 YAMAMOTO. T. S. M.Sc. — Dept of Zool.. Fac of Sci.. Hokkaido Univ., 

 North 8. West 5. SAPPORO, Japan 

 a. Cytochemical investigation on development. (Teleostei) (in collaboration 

 with Y. KANOH) 

 YANAGISAWA. T. — Biol. Inst.. Shizuoka Univ., Oiwa - 2. SHIZUOKA 

 CITY. Shizuoka. Japan phibia) 



a. Phosphate metabolism during embryogenesis and metamorphosis. (Am" 



b. Phosphate metabolism during embryogenesis. (Echinodermata) 

 YANAI. T. Ph.D. — Dept of Biol., Shimane Univ., MATSUE. Shiraane- 



ken, Japan 



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