Wenger-Wil 



f. Cytochemical and microchemical study of the developing nervous system 

 and its relationship to developing behaviour patterns. Glucoses-phos- 

 phate dehydrogenase activity in isolated areas of brain and spinal cord. 

 Amby stoma maculatum (Urodela) (in collaboration with Mrs. E. L. 

 WENGER) 



WENGER, Mrs. E. L. B.A., M.A., Ph.D. — Dept. of Anat., Med. School, 

 Univ. of Kansas, LAWRENCE, Kansas, U.S.A. 

 a. Cytochemical and microchemical study of the developing nervous system 

 and its relationship to developing behaviour patterns. Glucose-6-phos- 

 phate dehydrogenase activity in isolated areas of brain and spinal cord. 

 Amby stoma maculatum (Urodela) (in collaboration with B. S. WEN- 

 GER) 



WENIGER, J. P. Dr. es Sci. — Lab. de Zool. et d'Embryol. exper., Inst, de 

 Zool. et de Biol, gener., 12 Rue de l'Universite, STRASBOURG, France 

 a. Associations d'organes embryonnaires de meme espece et d'espece diffc- 

 rentes en culture in vitro; gonades, intestin. (Aves; Mammalia) 



WESSELLS, N. K. B.S., — Dept. of Biol. Sci., Stanford Univ., STAN- 

 FORD, Cal., U.S.A. 



WESTON, J. A. B.A. — Dept. of Zool., Josiah Willard Gibbs Research 

 Lab., Yale Univ., NEW HAVEN 11, Conn., U.S.A. 

 a. Studies of the origin and migration of specific cell types in morphogenesis 

 using tritiated-thymidine labeled cells. Gallus domesticus (Aves) 



WHITELEY, A. H. Dr., M.I.I.E., Prof. — Dept. of Zool., Univ. of Wash- 

 ington, SEATTLE 5, Wash., U.S.A. 



WHITING, H. P. M.A., Ph.D. — Dept. of Zool., The University, 



BRISTOL 8, England 

 WHITTAKER, J. R. B.A., M.S. — Dept. of Zool, Josiah Willard Gibbs 



Research Lab., Yale Univ., NEW HAVEN 11, Conn., U.S.A. 



a. Differentiation of embryonic retinal pigment cells in vivo and i n 

 vitro. Gallus domesticus (Aves) 



b. Cytochemical aspects of neural development and melanin synthesis 

 during larval development. Styela spec, Ciona spec, Molgula spec (As- 

 cidiae) 



WIERTZ (HOESSELS), Mrs. E. L. M. J. Ph.D. — Veter. Anat. and Em- 

 bryol. Inst., State Univ., Bekkerstr. HI, UTRECHT, Netherlands 



a. Photographical series of normal development. Gallus domesticus (Aves) 



b. Photographical series of organ development. Domestic animals (Mam- 

 malia) 



c Histochemical determinations in embryos. Domestic animals (Mammalia) 

 WIGGLESWORTH, V. B. Dr., F.I.I.E., Prof. — Zool. Dept., Univ. of 



Cambridge, Downing St., CAMBRIDGE, England 

 WILDE, C. E., Jr. A.B., A.M., Ph.D., M.I.I.E., Prof. — Dept. of Histol. & 



Embryol., School of Dentistry, Univ. of Pennsylvania, 4001 Spruce St., 



PHILADELPHIA 4, Pa., U.S.A. 



a. Organogenesis in vitro (limb bud, gills, cranial neural crest). Am- 

 bystoma maculatum (Urodela) 



b. Cellular differentiation (pigment cell; ectomesenchyme). Ambystoma ma- 

 culatum (Urodela) 



1. causal biochemistry of cellular differentiation. 



2. differentiation of cytoplasmic fragments. 



150 



