WIMSATT, W. A. Ph.D., Prof. — Div. of Biol. Sci. and Dept. of Anat., New York State 



Coll. of Vet. Med., Cornell Univ., 645 Emerson Hall, ITHACA, N.Y. 14850, U.S.A. • 

 a Morphogenesis and comparative physiology of placenta and fetal membranes. (Elas~ 



mobranchi; Chiroptera) 

 WINGSTRAND, K. G. Dr.phil., Prof. — Inst, of Comp. Anat., Universitetsparken 15, DK- 



2100 COPENHAGEN 0, Denmark 

 WINTER, Miss H. Dr.rer.nat. — Zool. Inst, der Univ., Berlinerstr. 15, 6900 HEIDELBERG, 



W.Germany 

 a RNA synthesis and transport during oogenesis in the meroistic-telotrophic ovary. Dysdercus 



intermedins (Hemiptera) 

 WISCHNITZER, S. Ph.D., Prof. — Dept. of Biol., Yeshiva Univ., 186th St. and Amsterdam 



Ave., NEW YORK, N.Y. 10033, U.S.A. 

 a Electron microscopy of oogenesis. Tritucus viridescens (Urodela), Mus albicans (Rodentia), 



Saimici sciureus, Homo sapiens (Primates) 

 WITSCHI, E f Ph.D., M.D., Prof. — Rockefeller Univ., NEW YORK, N.Y. 10021, U.S.A. 

 WITTENBORG, M. H. f M.D., Prof. — Children's Hosp. Med. Center, BOSTON, Mass. 



02115, U.S.A. 

 WOELLWARTH, C. von Dr.phil. — Heiligenberg Inst., 7799 HEILIGENBERG, Baden, 



W.Germany • 



a Autonome Musterbildung in der Medullarplatte. (Amphibia) 

 b Determination der Kopforgane. (Amphibia) 



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

 WOERDEMAN, M. W. M.D., Prof. (Emer.) — Anat.-Embryol. Inst., Univ. of Amsterdam, 



Mauritskade 61, AMSTERDAM-O., Netherlands • 



a Lens development. (Aves; Mammalia) 

 WOERLE, R. — I. Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. 19, 852 ERLAN- 



GEN, W.Germany 

 a Embryology. Daphnia magna (Cladocera, Crustacea) 

 WOLBERT, P. Dr.rer.nat. — Zool. Inst. I, Univ. Wiirzburg, Rontgenring 10, 87 WORZ- 



BURG, W.Germany 

 a Hormone dynamics in the pupa during normal development and after wounding or X- 



raying. Galleria mellonella ( Lepidoptera) 

 WOLF, R. Dr. — Heiligenberg Inst., 7799 HEILIGENBERG, W.Germany 



— Zool. Inst, der Univ., Rontgenring 10, 87 WORZBURG, W.Germany 

 a Correlation between kinematics and specific ultrastructures during early embryogenesis, 



including experiments by physical noxes (time lapse microcinematography, electron 



microscopy). Wachtliella persicariae (Cecidomyiidae) , Chironomus thummi (Chironomi- 



dae, Diptera) 

 WOLFE, J. S. Ph.D. — Dept. of Biol., Wesleyan Univ., MIDDLETOWN, Conn. 06457, 



U.S.A. 

 a The effect of karyomere formation in early cleavage on later development. (Echinoidea) 

 b Morphogenetic considerations of the oral apparatus. Tetrahymena pyriformis (Ciliata) 

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



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



a Organ culture of cancer tumors taken directly from the patient: growth factors for long 



term culture; culture on extracts of chick mesonephros and yeast; fractionation of dialysates 



of liver extracts. 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 • 



a Culture in vitro de longue duree de tumeurs malignes en presence et en l'absence 



d'organes embryonnaires. Homo sapiens (Primates) (avec Em. WOLFF) 

 b La differenciation et l'intersexualite in vitro et in vivo des gonades embryonnaires 



par les methodes des antihormones. (Aves) 

 WOLK, M. M.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 Appl. to Med., Middlesex Hosp. Med. Sch., 



LONDON W1P 6DB, England • 



a Cellular basis of morphogenesis and pattern formation: 1. Regeneration. Hydra spec. 



(Hydvozoa); 2. Morphogenesis. Gallus domesticus (Aves); 3. Limb development and 



regeneration. (Amphibia) 

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



10591, U.S.A. • 



a Effect of anti-metabolites, antibiotics (especially actinomycin) and nucleic acids on 



development and regeneration. Paracentrotus lividus, Arbacia punctulata (Echinoidea), 



Triturus viridescens, Rana pipiens (Amphibia) 

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



eye. Bombyx mori (Lepidoptera) 

 c Lens regeneration in embryonic stages under normal conditions and under the influence 



of chemical inhibitors. Ambystoma punctatum (Urodela) 



195 



