Williams 96 Wits 



c. Studies on the effect of feeding and topical application of carcinogen 

 on cells implanted in transparent chambers in rabbit's ears. (Mammalia) 

 WILLIAMS, S. C. B.S.. Ph.D.. Asst Prof. — Dept of Anat.. School of 

 Med., Univ. of Pennsylvania, PHILADELPHIA 4, Pa. U.S.A. 



a. Tissue culture of young isolated neuroblasts from special areas of brain, 

 esp. cerebellum, medulla. Gallus domesticiis (Aves) 



b. Early development of teeth. Homo (Primates) 



WILLIER, B. H. B.S., Ph.D.. D.Sc. Prof. — Dept of Biol., The Johns 

 Hopkins Univ., Charles and 34th Strs, BALTIMORE 18, Md, U.S.A. 



a. The mechanism of interaction of melanoblasts of known genotype with 

 feather papilla in the production of feather pigmentation pattern. Gallus 

 domesticus (various varieties) (Aves) 



h. Factors regulating migration of melanoblasts and their growth (multipli- 

 cation) and differentiation (synthesis of specific melanin granules). 

 Gallus domesticus (various varieties) (Aves) 



c. The role that sex and other hormones play in modifying the phenotypic 

 expression of melanoblasts in color pattern formation. Gallus domesticus 

 (various varieties) (Aves) 



d. Ontogeny of endocrine correlation (ms. in preparation). Gallus do- 

 mesticus (Aves) 



WILSON, J. W. Ph.D., Prof. — Arnold Biol. Lab., Brown Univ., PROVI- 

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

 a. A study of mitotic activity and other cytological phenomena in liver 

 regeneration. (Vertebrata) 



WINDLE, W. F. B.S.. M.S., Ph.D., Sc.D., Prof. — Dept of Anat., Univ. 

 of Pennsylvania. School of Med., PHILADELPHIA 4, Pa, U.S.A. 

 (no data received over this year) 



WINGSTRAND, K. G. Fil.lic. — Embryol. Dept. Zool. Inst., Univ. of 

 Lund. LUND, Sweden, 

 a. Embryology, esp. development of hypophysis and vessels in connection 

 with it. (Aves) 



WINOWSKA. Mrs J. M.Sc. — Zaklad Anat. Porownawczej, Inst. Zool. 

 Uniw.. ul. Sienkiewicza 21. WROCLAW. Poland, 

 a. Development of the air-bladder. (Euphysoclisti, Teleostei) 



WIRTH. Miss P. B.S. — Dept of Biol. Sci., Univ. of Pittsburgh. PITTS- 

 BURGH 13. Pa. U.S.A. 

 (no data received over this year) 



WISLOCKI. G. B. M.D., A.M.. Prof. — Dept of Anat.. Harvard Med. 

 School, 25 Shattuck Str., BOSTON 15, Mass., U.S.A. 

 (no data received over this year) 



WITSCHI, E. Ph.D., Prof. — Dept of Zool., State Univ. of Iowa, IOWA 

 CITY, Iowa, U.S.A. 



a. Metabolism of normal and overripe eggs. (Anura) 



b. Neoplastic development of overripe eggs. (Anura) 



c. Sex differentiation (normal and experimental). Rana, Bu[o, Alytes and 

 Xenopus (Anura) 



d. Parabiosis and hormones in sex differentiation. Triturus torosus (Uro- 

 dela) 



e. Metamorphosis of the ear. (Anura) 



f. Embryologic and endocrine studies in adreno-gonadal relationships. 



(Amphibia, Aves, Mammalia) 



