Gar-Gey 



a. Action of barbituric compounds on embryonic development. Gallus 

 domesticus (Aves) 

 GARGOUIL, Y. M. Dr.es Sci.. Prof. — Lab. de Physiol, anim., Fac. des 

 Sci.. Route de Limoges. POITIERS (Vienne). France 

 a. Electrophysiology of embryonic heart and muscles; study of the de- 

 velopment of membrane properties. Amby stoma tigrinum (Urodela), 

 Cavia porcellus, Rattus norvegicus (Rodentia) 

 GASSER, F. Dr.Biol. — Lab. de Biol, gener., Fac. des Sci.. 118 Route de 

 Narbonne. TOULOUSE. France 

 a. Differenciation de diverses categories de proteines au cours du deve- 

 loppement; etude cytochimique et electrophoretique. (Urodela) 

 GASSIOLE, Mrs. D. — Lab. d'Embryol. Fac. de Med.. 31 Rue Lionnois, 



NANCY (Meurthe & Moselle), France 

 GATES, A. H. Ph.D. — Dept. of Obstetrics & Gynecol, Stanford Univ. 

 School of Med.. PALO ALTO, Cahf.. U.S.A. 

 a. Factors influencing survival and development of the egg. Mas musculus 

 (Rodentia) 

 GAUTHIER, A. Ing.Chim. — Lab. de Zool. exper., Fac. des Sci. de Lyon. 

 43 Bd. de I'Hippodrome, VILLEURBANNE, France 

 a. Metabolisme des oligoelements. Euglena gracilis (Flagellata) 

 GAWRON (SKOWERSKA), Mrs. M. Ph.D. — Dept. of Gener. Biol., 

 Silesian Acad, of Med.. ZABRZE 8, Poland 



a. The nucleo-plasmatic dynamics of the thyroid cell under the influence 

 of thiouracil-derivatives. Bufo bufo (Anura) 



b. The mitotic regulation of the thyroid gland. Xenopas laevis (Anura) 

 GAYET, T. F. Dr.k Sci., Prof. — Inst, de Physiol. Gener., 15 Place Carnot, 



NANCY (Meurthe 6 Moselle), France 



(no embryological work in progress) 

 GAZE, R. M. M.A., D.phil.. L.R.C.P.E.. L.R.C.S.E., F.R.S.E. — Dept. of 



Physiol., Univ. Med. School, Teviot Place. EDINBURGH 8, Scotland 

 a. Functional aspects of regeneration of the optic ner\'e. Xenopus laevis, 



Rana temporaria (Anura) 

 GEBHARDT, D. O. E. Ph.D. — Rijks Instituut voor de Volksgezondheid. 



Sterrenbos 1 , UTRECHT, Netherlands 



a. The action of drugs on embryonic development. Gallus gallus (Aves), 

 Mus musculus (Rodentia) 



b. The action of drugs on limb regeneration. Ambystoma mexicanum 

 (Urodela) (in collaboration with J. FABER. Hubrecht Lab.) 



GEHRING, W. Dipl.Sc.Nat. — Zool.-vergl.Anat. Inst., Naturwiss. Fak., 



Univ. Zurich, KUnstlergasse 16, ZORICH, Schweiz 

 GEIGY. R. Dr., Prof. — Schweiz. Tropeninst., Socinstr. 57, BASEL. 



Schweiz 



— Zool. Anstalt der Univ., Rheinsprung 9. BASEL, Schweiz 



a. Spermatogenese, Ovogenese, Embryonalentwicklung und Endocrinolo- 

 gie. (Ixodoidea, Acarina. Arachnoidea) (in collaboration with A. 

 AESCHLIMANN) 



b. Spermatogenese, Ovogenese und Geschlechtsbestimmung. Planococcus 

 citri (Homoptera) (in collaboration with A. AESCHLIMANN) 



c. Uebertragung von Spirochaetosen iiber das miitterliche Ovarium auf 

 die Embryonen und damit auf die Nachkommen der nachsten Genera- 



72 



