b Eihautbildung, Differenzierung und Missbildung in vitro. (Rodentia) 



c Heterotransplantation. (Rodentia) 



WRENN, Mrs. J. O. Th. B.A. — Dept. of Biol. Sci., Stanford Univ., STANFORD, Calif. 



94305. U.S.A. 

 a A study of the formation of curved structures from relatively flat sheets of cells; possible 



causes such as intracellular contractile filaments, localized cell multiplication, and localized 



dissolution of a connective tissue sheath arc being investigated in the formation of tubular 



glands from the oviduct. Callus galliis (Aves) 

 WRIGHT, Th. R. F. Ph.D., Prof. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, 



CHARLOTTESVILLE, Va. 22903, U.S.A. 

 a The genetic control of enzyme activity during development. Drosophila melanogaster 



(Diptera) 

 b Temperature sensitive lethal mutations affecting embryogenesis. Drosophila melanogaster 



(Diptera) 

 c Genetic control of myogenesis. Drosophila melanogaster (Diptera) 

 WR6BLEWSKI, R. Dr.med., Prof. — Dept. of Gen. Biol., Silesian Acad, of Med., K. 



Marksa 19, Rokitnica, ZABRZE 8, Poland, 

 a Morphogenetical aspects in the regeneration of endocrine glands, especially the thyroid. 



(Rodentia) 

 WURGLER, F. E. Dr. — Dept. of Zool., Swiss Federal Inst, of Technol., Universitatstr. 2, 



8006 ZURICH, Switzerland 

 a X-ray effects on gametes, embryos, larvae and pupae: influence of chromosome con- 

 figuration, specific genes and developmental stage X-rayed. Drosophila melanogaster 



( Diptera) 

 WURMBACH, H. Dr., Prof. — Inst, fur Landwirtsch. Zool. und Bienenk. der Univ., 



Melbweg 5, 53 BONN, W.Germany 

 a Beeinflussung des Wachstums und der Differenzierung durch Wirkstoffe (Schilddriisen- 



hormon, Steroide, teratogene Substanzen). Lebistes spec. (Teleostei). Xenopus laevis. Bufo 



bufo (Anura), Gallus gallus (Aves) 

 b Formbildende Krafte beim Wachstum ( Wachstumsdynamik); formbildende Bedeutung der 



Gewebe. Bufo spec, Xenopus laevis (Anura). Gallus gallus (Aves) 

 WYATT, G. R. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW 



HAVEN, Conn. 06520, U.S.A. 

 a Protein synthesis, RNA and ribosomes; changes during hormone action and metamorphosis. 



Hyalophora cecropia (Lepidoptera) 

 b Protein synthesis and transport in oogenesis; regulation by hormones. Blattella germanica 



(Orthoptera) 

 WYLIE, C. C. B.Sc. — Dept. of Anat. and Embryol., Univ. Coll., Gower St., LONDON 



W.C.I, England 

 a Study of the ribonucleic acid metabolism in the early embryo. Gallus domesticus (Aves) 

 WYSOCKA, Miss B. B.Sc. — Dept. of Histol. and Embryol., Acad, of Med., ul.Naruto- 



wicza 60, E0D2, Poland 

 a Comparative histochemical and biochemical studies on amounts and distribution of some 



inorganic salts in spodograms of lungs and of livers in relation to the level of Na, K, and 



Ca in blood plasma during embryogenesis. Xenopus laevis (Anura), Rattus norvegicus, 



Cavia cobaya (Rodentia) 

 WYTTENBACH, C. R. Ph.D. — Dept. of Zool., Univ. of Kansas, LAWRENCE, Kansas 



66044, U.S.A. 

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



Egas Moniz, LISBOA 4, Portugal 

 a Histogenesis of the area postrema. Felis catus (Carnivora) 

 b Histogenesis of the neurohypophysis, at microscopical level. Felis catus (Carnivora). 



Oryctolagus cuniculus (Lagomorpha) 

 c Action of ionizing radiations upon the embryonated egg. Callus domesticus (Aves) (in 



collaboration with Mrs. M. J. RODRIGUES CORREIA) 

 YAJIMA, H. Ph.D. — Biol. Inst., Fac. of Sci., Ibaraki Univ., Bunkyo 2-1-1, MITO-City, 



Japan 

 a Comparison of embryonic development between normal and malformed embryos by serial 



sections of fixed material. Chironomus dorsalis (Diptera) 

 h Malformations induced by irradiation with monochromatic ultraviolet light. Chironomus 



dorsalis (Diptera) 

 c Effects of temperature during and after centrifugation of eggs on the production of double 



malformations. Chironomus dorsalis (Diptera) 

 d Effect of ultraviolet irradiation upon the re-entry of pole cells. Chironomus dorsalis 



(Diptera) 

 YAMADA, K. M. B.A. — Dept. of Biol. Sci., Stanford Univ., STANFORD, Cahf. 94305, 



U.S.A. 

 a Study of the synthesis of microtubular protein in nerve ganglia after stimulation with 



nerve growth factor and the relationship of microtubular synthesis to nerve fiber out- 

 growth. Callus gallus (Aves) 



189 



