a Synthesis of RNA and DNA during oogenesis; nuclear morphology; emphasis currently 



on nucleoli and ribosomal RNA production. Tritutus viridescens, Ambystoma mexicanum, 



Xenopus laevis (Amphibia) 

 b Amplification of genes coding for ribosomal RNA during oogenesis. Xenopus laevis (Anura) 

 GALLERA, J. D.Sc. — Lab. d'Embryol. Exper., Inst. d'HistoL, Univ. de Geneve, 20 rue de 



I'Ecole de Medecine, 1211 GENEVE 4, Switzerland • 



a Mechanisms involved in the induction process. Gallus domesticus (Aves) 

 h Action of actinomycin D on ectoblast competence and inductive power of Hensen's node. 



Gallus domesticus (Aves) 

 c Comparison between the inductive capacities of the presumptive endoblast and mesoblast 



cells located in the primitive streak. Gallus domesticus (Aves) 

 d Meaning of the period of latency inserted between the induction time and the beginning 



of neurulation. Gallus domesticus (Aves) 

 GALLIEN, L. Dr.es Sci., Prof. — Lab. d'Embryol., Fac. des Sci. de Paris, 9 quai St. 



Bernard, 75 PARIS Ve, France • 



GALSTON, A. W. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ.., NEW 



HAVEN, Conn. 06520, U.S.A. 

 a Analysis of molecular basis for the developmental roles of indole-3-acetic acid and of light 



(absorbed by phytochrome). Pisum sativum (Papilionaceae) 

 GAMBLE, H. J. Ph.D. — Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON S.E. 1, 



England 

 a Development of peripheral nervous tissues in the foetus. Homo sapiens (Primates) 

 h Development of spinal cord in the foetus (electron microscopy). Homo sapiens (Primates) 

 GANGULY, B. Ph.D. — Dept. of Zool, Presidency Coll., CALCUTTA-12, W.Bengal, 



India 

 GANGULY, D. N. Ph.D. — Cell Research Unit, Dept. of Zool., Univ. of Calcutta, 35 



Ballygunje Circular Rd., CALCUTTA-19, India 

 GARAVINI, Mrs. C. Dr. — 1st. di Anat. Comp., Univ. di Bologna, Via Belmeloro 8, 



BOLOGNA (103), Italy 

 GARBER (BILSKY), Mrs. B. B. Ph.D. — Dept. of Biol., Div. of Biol. Sci., Univ. of 



Chicago, CHICAGO, 111. 60637, U.S.A. 

 a Epithelial-mesenchymal interactions in embryonic development. 

 GARCIA AUSTT, E. M.D., Prof. — Sect, of Exper. Neurol., Inst, of Neurol., Hosp. de 



Clinicas, MONTEVIDEO, Uruguay 

 a Influence of uterine contractions on fetal EEG. Homo sapiens (Primates) 

 GARCIA-BELLIDO, A. Ph.D. — Sect. Developm. Genet., Inst, of Genet, and Anthropol.. 



Velazquez 144, MADRID 6, Spain 

 a Clonal analysis of wing imaginal disc development in situ and in culture; effect of genetic 



recombination of mutations on further clonal development. Drosophila melanogaster (Dip- 



tera) 

 b Nature of the specificity of cell recognition in cell aggregates of imaginal discs; cell 



affinities of normal versus mutant genotypes. Drosophila melanogaster (Diptera) 

 GARDENGHI, G. Dr. — Inst, of Zool., Fac. of Sci., Univ. of Bologna, Via S. Giacomo 9, 



40126 BOLOGNA, Italy 

 a in vitro culturing of larval gonads. Bufo bufo (Anura) 



b Hormonic regulation of ovarian and Bidder's organ oogenesis. Bufo bufo (Anura) 

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



Poitiers, 40 Av. de Recteur Pineau, 86 POITIERS, France 

 a Electrophysiology of embryonic heart and muscles; study of the development of membrane 



properties. Ambystoma tigrinum (Urodela), Cavia porcellus, Rattus norvegicus (Rodentia) 

 h Histology and electron microscopy of the embryonic heart. Rattus norvegicus (Rodentia) 

 GARROD, D. R. B.A. — Dept. of Biol, as applied to Med., The Middlesex Hosp. Med. 



School, LONDON W.l, England 

 a Morphogenetic movement and cell adhesion. Dictyostelium discoideum (Acrasiales) 

 GARWEG, G. Dr.med. — Anat. Inst, der Univ.. fur Neuroanat., Nussallee 10, 53 BONN, 



W.Germany 

 a Ontogenesis of the brain. Mus musculus (Rodentia) 

 GASC, J. M. Lic.es Sci. — Inst. d'Embryol. et Teratol. exper. du C.N.R.S., 49bis Av. de la 



Belle Gabrielle, 94-NOGENT-sur-MARNE, France 

 a X-ray damages on embryonic intestine at biochemical level. Gallus domesticus (Aves) 

 b Evolution of the DNA-like RNA during embryonic development. Xenopus laevis (Anura) 

 GASSER, F. Dr.Biol. — Lab. de Biol., Gener., Fac. des Sci., 118 Route de Narbonne, 31 



TOULOUSE (04), France 

 a Differenciation de diverses categories de proteines au cours du developpement; etude 



cytochimique et electrophoretique. (Urodela) 

 GASSER, R. F. Ph.D. — Dept. of Anat., Louisiana State Univ., 1542 Tulane Ave., NEW 



ORLEANS, La. 70112, U.S.A. 

 a The development of the trigeminal nerve. Papio spp. (Primates) 

 h The development of the parotid gland around the facial nerve. Homo sapiens (Primates) 



62 



