Grosch-Hal 



a. Egg production and survival of embryos after mother has been fed 

 enzyme inhibitors, antimetabolites, and related compounds; without and 

 with irradiation. Habrobracon spec. (Hymenoptera) 



GRUENWALD, P. M.D. — Woman's Clinic, Johns Hopkins Hosp., BAL- 

 TIMORE 5, Md., U.S.A. 



GRuNEBERG, H. Ph.D., M.D., D.Sc, F.R.S., F.I.I.E., Prof. — Dept. of 

 Genet., Univ. Coll. London, Gower St., LONDON W.C. 1, England 

 a. Developmental genetics of the axial and appendicular skeleton; effects 

 of major genes. Mus musculus (Rodentia) 



GRQNTHAL, E. Dr., Prof. — Hirnanat. Inst, der Psychiatr. Univ. Klinik, 

 Med. Fak., Waldau, BERN, Schweiz 



GUARDABASSI, Miss A. Dr. — Inst, of comp. Anat, Via Giovanni Gio- 

 litti 34, TORINO, Italy 



a. Responses to thiouracil of the hypothalamo-hypophyseal system, hypo- 

 physis and thyroid of normal larvae and sugar albino larvae after preven- 

 tion of adenohypophysis-hypothalamus connections. Bufo b. bufo (Anu- 

 ra) (in collaboration with V. MAZZI) 



b. Observations on tadpoles treated with Ca 45 . Bufo b. bufo (Anura) 



c. The behaviour of hypophysis, thyroid and parathyroids of tadpoles after 

 treatment with Ca-glycerophosphate. Bufo b. bufo (Anura) 



GUGGENHEIM, P. A.B., M.D. — Dept. of Anat., School of Med., The 



Creighton Univ., OMAHA, Nebraska, U.S.A. 

 GUILLAUD, N. — Lab. d'Hormonol. et de Cytol. Exper., Ecole pratique des 



Hautes Etudes, Hopital Broca, 111, Rue L. M. Nordmann, PARIS XIII, 



France 

 a. Physiologie de la maturation ovulaire et structure de la membrane pel- 



lucide de l'ovule observees en microscopie electronique. (Mammalia) (en 



collaboration avec R. MORICARD) 

 GUILLON, N. — Lab. d'Hormonol. et de Cytol. Exper., Ecole pratique des 



Hautes Etudes, 111, Rue L. M. Nordmann, PARIS XIII, France 

 a. Cytopathologie de la meiose dans les sterilites masculines et recherches 



sur certaines fonctions spermatiques au moyen des traceurs ( 32 P et 35 S). 



(Mammalia) (en collaboration avec R. MORICARD et Miss M. M 



C. S. GOTHIE) 



GURDON, J. B. M.A. — Dept. of Zool. and Comp. Anat, The Univ. Mu- 

 seum, OXFORD, England 



a. Nuclear transplantation using endoderm nuclei. Xenopus laevis (Anura) 



b. Nuclear transplantation between species. (Anura) 

 GUSTAFSON, T. Fil.Dr., M.I.I.E. — Wenner-Grens Inst, for exper. Biol., 



Norrtullsgatan 16, STOCKHOLM Va., Sweden 



a. Morphogenetic movements. (Echinoidea) 



b. Enzyme adaptation in cell cultures. 



c. The effect of various antimetabolites on embryonic development. (Echi- 

 noidea) (in collaboration with S. HoRSTADIUS) 



GUTH, L. A.B., M.D. — Lab. of Neuroanat. Sci., NINDB, Nat. Inst, of 



Health, BETHESDA, Md.. U.S.A. 

 a. Neuronal specificity in the autonomic nervous system. (Mammalia) 

 GUYENOT, E. Dr. Med., Dr. Sci. — Inst, de Zool. et Anat. comp., Univ. 



de Geneve, Rue de Candolle, GENEVE, Suisse 



(no embryological work in progress) 



50 



