c. Modified ribs produced by exposure of the thoracic region of 2-day 

 embryos to nitrogen mustard. Gallus domesticus (Aves) 



d. Effects of hypophysectomy upon development of the liver, spleen, long 

 bones, blood, feather germs, and vascularity of the glycogen body, and 

 upon the alkaline phosphatase content of the glycogen body. Gallus 

 domesticus (Aves) 



e. Reduced endocrine activity of ovaries of hypophysectomized embryos as 

 indicated by modified development of the genital tubercle and syrinx. 

 Anas domesticus (Ares) 



f. Development of the liver following its inhibition by aminoguanidine. 

 Gallus domesticus (Aves) 



g. Spina bifida at the lumbosacral level of hypophysectomized embryos and 

 its effect on development of the glycogen body. Gallus domesticus 

 (Aves) 



h. Modifications of the glycogen content of the glycogen body of the em- 

 bryo by injections of insulin and adrenalin. Gallus domesticus (Aves) 

 WEBER. A. F.I. I.E., Prof. (Emer.) — Lab. de Neurohistol.. Inst. d'Anat.. 

 Ecole de Med., 20 Rue Ecole de Med., GENfiVE. Suisse 

 a. Developpement du systeme nerveux 

 WEBER, R. D.Phil.nat. — Zool. Inst, der Univ. Bern, Sahlistr. 8, BERN, 

 Schweiz 



a. Biochemistry of mitochondria during embryonic development. Tubifex 

 rivulorum (Oligochaeta) . Xenopus laevis (Anura) 



b. Submicroscopical structure of the egg. Tubifex rivulorum (Oligochaeta) , 

 Xenopus laevis (Anura) 



WEDIN. B. Dr — Forsvarets Forskningsanstalt. Avdelning 1. SlINDBY- 



BERG 4, Sweden 

 WlgGLARSKA, Miss B. B.Sc. - Zool. Dept of the Jagiellonian Univ.. St 



Anne 6, KRAKOW. Poland 



a. Descriptive embryology. Uifpsihius mcc;a/oni/.v (hutardiijradn) 



b. Histochemical studies on development, hiclasoma populi L. (Colcoptera) 

 (in collaboration with Cz. JURA and A. KRZYSZTOFOWICZ) 



WEISS, L. B. — Dept of Anat.. Harvard Univ.. Mod. School, 25 Shattuck St. 

 BOSTON 15. Mass., U.S.A. 



WEISS, P. A. Ph.D.. M.D. (hon.c), F.I.I.E.. Prof. — Dept of developm. 

 Biol.. Rockclcllcr Inst, for Med. Res.. 66th St and York Ave. NEW 

 YORK 21, N.Y., U.S.A. 



WEISZ, P. B. B.S.. Ph.D. — Arnold Biol. Lab.. Brown Univ.. PROVI- 

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



a. Study of morphogenesis. Stentor spec. Blcpharisnut spec. (Ciliata) 



b. Study of cell division. Stentor spec. (Ciliata). Rana pipiens (Anura). 

 Mas norvcijicus alhintts ( Rodcntia) 



WELANDF.R. A. D. B.S.. M.S.. Ph.D. - Fisheries Center. Univ. of Was- 

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

 a. Effects of graded sublethal to lethal doses of X-rays on several different 

 stages of the embryo. Oncorhynchus kisutch (Teleostei) 

 WELLER. E. M. A.B., M.S. — Dept of Zool., Univ. of Calif., LOS AN- 

 GELES 24. Cal., U.S.A. 

 WF.LLS. L. J. Ph.D.. Prof. Dept of Anat.. School of Med.. Univ. of Min- 

 nesota. M1NNL:AP0LIS H. Minn.. U.S.A. 

 a. Formation of the iuguin.il bursa. Homo s^ipicrjs ( Prinuttes) 



115 



