WITTENBORG. M. H. M.D., Prof . — Children's Hosp. Med. Center, 300 Longwood Ave.. 



BOSTON. Mass. 02115, U.S.A. 



— Harvard Med. School, 25 Shattuck St., BOSTON. Mass. 02115, U.S.A. 

 a Teratology - mandible, skull and spine. (Mammalia) 

 WITTIG, M. — Abt. f. Entw.physiol. der Haustiere, Mac-Planck-Inst. f. Tierzucht u. Tier- 



ernahrung, 3051 MARIENSEE, Deutsche Bundesrepublik 



• WOELLWARTH, C. v. Dr.phil. — Heiligenberg-Inst., 7799 HEILIGENBERG. Baden, 



Deutsche Bundesrepublik 

 a Autonome Musterbildung in der Medullarplatte. (Amphibia) 

 b Determination der Kopforgane. (Amphibia) 

 c Entstehung von Situs inversus durch Defekte und verschiedene aussere Einfliisse. (Urodela) 



• WOERDEMAN, M. W. M.D., Prof. (Emer.) — Anat.-Embryol. Inst.. Fac. of Med., 



Univ. of Amsterdam, Mauritskade 61. AMSTERDAM-O., Netherlands 

 a Lens development. (Aves; Mammalia) 



• WOLFF (HENNIG), Mrs. Em. Dr.es Sci. — Inst. d'Embryol. et Teratol. exper. du 



C.N.R.S., 49 bis Av. de la Belle Gabrielle, 94-NOGENT-sur-MARNE, France 

 a Organotypic culture of human cancer tumors taken directly from the patient; long term 

 organotypic culture; culture on embryonic mesonephros; culture on extracts of embryonic 

 liver, mesonephros and yeast; fractionation of dialysates of such extracts. Gallus gallus 

 (Aves), Homo sapiens (Primates) 



• WOLFF, Et. C. Dr.es Sci., Prof. — Inst. d'Embryol. et Teratol. exper. du C.N.R.S., 49bis 



Av. de la Belle Gabrielle, 94-NOGENT-sur-MARNE, France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Berthelot, PARIS Ve, 

 France 

 a Recherches experimentales sur I'embryologie et la teratologie; monstres simples, monstres 



doubles et poly-embryonie. (Aves) 

 h La differenciation sexuelle, par les methodes de greffes, de castration, d'injections d'hor- 

 mones et d'explantations; differenciation normale et inversion sexuelle des gonades, des 

 voies genitales et des caracteres somatiques precoces. Gallus spec. (Aves) 

 c Problemes relatifs a la regeneration; origine des cellules de regeneration et processus 

 d'induction dans la regeneration. Polycelis nigra. Euplanaria lugubris (Turbellaria), 

 Tritucus cristatus (Urodela) 

 d Culture in vitro de longue duree de tumeurs malignes en presence et en I'absence 

 d'organes embryonnaires. Homo sapiens (Primates) (en collaboration avec Mrs. Em. 

 WOLFF (HENNIG) 

 « Recherches sur la differenciation et I'intersexualite in vitro et in vivo des gonades 



embryonnaires. (Aves) 

 WOLFF, H. H. Dr.med. — Anat. Inst, der Univ., Koellikerstr. 6. 87 WURZBURG, Deutsche 



Bundesrepublik 

 a Development of the retina under normal and experimenta'l conditions (enzyme histo- 

 chemistry, electron microscopy). Rattus norvegicus (Rodentia), Felis catus (Carnivora) 

 WOLK, M. B.Sc. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel 

 a Separation of epiblast from hypoblast by inserted membranes in an attempt to detect 



possible inductive influences. Gallus domesticus (Aves) 

 WOLPERT, L. Ph.D., Prof . — Dept. of Biol, as applied to Med., Middlesex Hosp., Med. 



School, LONDON W.l, England 

 a Cellular basis of morphogenesis and pattern formation. Hydra spec. (Hydroidea), Psam- 



mechinus miliaris (Echinoidea) 

 WOLPOW, E. R. M.D. — Dept. of Neurol., Massachusetts General Hosp., BOSTON, 



Mass. 20015, U.S.A. 

 a Investigation of factors regulating the size and shape of the embryonic eye lens. Gallus 



domesticus (Aves) 

 • WOLSKY, A. Dr.phil.. Prof. — Dept. of Biol.. Marymount Coll.. TARRYTOWN. N.Y. 



10592, U.S.A. 

 a Effect of anti-metabolites, antibiotics (especially beta-mercapto-ethanol and actinomycin) 

 and nucleic acids on development and regeneration. Paracentrotus lividus, Arbacia 

 punctulata (Echinoidea), Triturus viridescens, Rana pipiens (Amphibia) 

 h The effect of long wave ultraviolet irradiation of gametes, on early development. Arbacia 



punctulata (Echinoidea), Rana pipiens (Anura) 

 c A re-investigation of the influence of neurogenesis on the development of the compound 



eye. Bombyx mori (Lepidoptera) 

 WOOD, J. G. Ph.D., Prof. — Dept. of Anat., South Texas Med. School, The Univ. of 



Texas, 715 Stadium Drive, SAN ANTONIO, Tex. 78212, U.S.A. 

 a Histochemistry and electron microscopy of developing adrenomeduUary cells. Mus 



musculus (Rodentia) 

 WOODS, J. E. Ph.D. — Dept. of Biol. Sci., De Paul Univ., 1036 Belden Ave., CHICAGO, 



111. 60614. U.S.A. 

 a Hypophysectomy effects upon hydroxysteroid dehydrogenases in the gonads and adrenals 

 of the developing embryo. Gallus domesticus (Aves) 



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