WOLSKY. A. Dr Phil. — Biol. Lab., Fordham Univ., NEW YORK 58, 

 N.Y., U.S.A. , , , 



a. The role of the central nervous system (optic tract) m the development 

 of the compound eye. Ephestia kuhniella (Lepidoptera) , Motmoniella 

 vitripennis (Hymenoptera) 



b. Effects of external factors (radiations, rotational force, gases in the ath- 

 mosphere) on early embryonic development and regeneration. Lumbricus 

 terrestris (Annelida), Bombyx mod (Lepidoptera), Triturus viridescens 

 (Urodela) 



c. The physiology of body color genes. Drosophila melanogaster (Diptera), 

 Cricetiis (=^ Mesocricetus) auratus (Rodentia) 



WOODGER J. H. Prof. — Middlesex Hosp., Med. School, LONDON 



W. 1, England (U.K.) 

 a. New methods of describing the cleavage process. 

 WRBA, H. Dr rer.nat., Dr Med. — Inst, fiir exp. Krebsforschung der Univ. 



Heidelberg, Voszstrasse 3, HEIDELBERG, Deutschland 

 a. Untersuchungen zur Frage der Differenzierung insbesondere des Zen- 



tralnervensystems und der Herzanlage in vivo und in vitro. 



(Rodentia) 

 WURMBACH, H. Dr, Prof. — Entwicklungsgesch. Abt., Zool. Inst, der 



Univ. Bonn, BONN, Deutschland 



a. Beeinflussung des Wachstums und der Differenzierung durch Wirkstoffe 

 (Schilddriisenhormon, Steroide, Thymuswirkstof f e ) . Lebistes, Xenopus 

 laevis, Bufo, Gallus (Vertebrata) 



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

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



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

 SHIMA CITY, Japan 



a. On the behavior of the macronuclear nodes. Condylostoma spatiosum 

 Ozaki and Yagiu (Heterotricha, Ciliata) 



b. Macronuclear reorganization process and formation of double animals 

 resulted from united exconjugants. Condylostoma spatiosum Ozaki and 

 Yagiu (Heterotricha, Ciliata) 



c. The relationship between the abnormal arrangement of macronuclear 

 nodes and the shape of the organism. Condylostoma spatiosum Ozaki 

 and Yagiu (Heterotricha, Ciliata) 



d. The process of regeneration of the cell-organs on some ciliates. Chlamy- 

 rodon pedarius (Holotricha) , Condylostoma spatiosum Ozaki and Yagiu 

 (Heterotricha, Ciliata) 



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

 gusa-Ku, NAGOYA. Japan 



a. Isolation of pentose-nucleoproteins with regional inducing effects. Studies 

 of their electrophoretic patterns and active loci. (Amphibia, Mammalia) 

 (in collaboration with Y. HAYASHI and K. TAKATA) 



b. Chemical embryology of the blood island. (Amphibia) (in collaboration 

 with Y. HAYASHI and K. TAKATA) 



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

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

 collaboration with C. TAKATA) 



YAMAMOTO, K. — Dept of Zool., Fac. of Sci., Hokkaido Univ., SAPPO- 

 RO, Japan 



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