Wil'WoI 



WILSON. I. B. B.Sc, Ph.D. — Dept. of Zool.. Univ. Coll. of North Wales. 



BANGOR, Caernarvonshire, Wales 

 a. Investigations on the establishment of implantation and early pregnancy 



Mits musculus (Rodentia) 

 WILSON. J. G. B.A., M.A., Ph.D., Prof. — Dept. of Anat.. Coll. of Med.. 



Univ. of Florida. GAINESVILLE, Fla., U.S.A. 



a. Interaction of two or more teratogenic agents. Rattas rattus albinus 

 (Rodentia) 



b. The effect of teratogenic agents with known mechanisms of action. Rat- 

 tus rattus (Rodentia) 



WILSON, I. W. Ph.D., Prof.(Emer.) — Arnold Biol. Lab., Brown Univ.. 



PROVIDENCE 12, R.I.. U.S.A. 

 WILT, P. H. Ph.D., Prof. — Dept. of Zool.. Univ. of California. BERKE- 

 LEY. Cahf., U.S.A. 

 a. Mechanism of thyroxin-stimulated visual pigment conversion during 



metamorphosis. (Anura) 

 h. Mechanism of origin of hemoglobin-synthesizing machinery during de- 

 velopment. Gallus domesticus (Ai^es) 



c. Activation of protein and RNA synthesis in cleaving eggs. Strongylo- 

 centrotus purpuratus (Echinoidea) 



WIMSATT. W. A. A.B., Ph,D.. M.I.I.E., Prof. — Dept. of Zool., Cornell 

 Univ., ITHACA, N.Y. 14850, U.S.A. 



a. Comparative placentation, structural and functional. (Reptilia; Mamma- 

 lia) 



b. Ultrastructural analysis of sperm-uterus relationship, sperm, oocytes 

 and fertilized ova. Myotis lucifuqus (Microchiroptera) 



WINGSTRAND. K. G. Dr.phil. Prof. — Inst, of Comp. Anat., Universi- 

 tetsparken 3, COPENHAGEN 0. Denmark 

 a. Embrvoloqy. ArmilUfer spec. (Linguatulida) (in collaboration with A. 

 N0RREVANG) 

 WISCHNITZER. S. B.A.. M.S.. Ph.D., Prof. — Dept. of Biol., Yeshiva 

 Univ., 186 St. and Am.sterdam Ave.. NEW YORK, N.Y. 10033. U.S.A. 

 a. Electron microscopic study of oogenesis. Tritunis inridescens (Urodela) , 

 Gallus domesticus (Aves), Mus albicans (Rodentia) 

 WITKAM, W. G. M. Med.Drs. — Lab. for Anat. and Embryol., R.K. Univ., 

 Kapittelweg 40, NIJMEGEN, Netherlands 

 a. Experimental hypoplasia of the cerebellum induced by X-rays. Mus 

 rattus. Caina porcellus (Rodentia) 

 WITSCHI, E. Ph.D.. M.D.L.c. M.I.I.E.. Prof. — Anat. Inst, der Univ., 

 Pestalozzistr. 20. BASEL. Schweiz 



a. Embryology of hermaphroditism. Homo sapiens (Primates) 



b. Atresia in the ovary. Homo sapiens (Primates) 



c. Biochemistry of sex determination and sex differentiation. Xenopus spec. 

 (Anura) 



WITTIG. M. — Abt.f.Entw.physiol.der Haustiere. Max-Planck-Inst.f.Tier- 

 zucht u. Tierernahrung, 3051 MARIENSEE, Deutsche Bundesrepublik 

 a. Analysis of embryonic muscle up to its function. Oryctolagus cuniculus 

 (Lagomorpha) 



WOELLWARTH, C. v. Dr.phil., M.I.I.E. — Heihgenberg-Inst.. 7799 

 HEILIGENBERG, Baden. Deutsche Bundesrepublik 



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