Vis- War 



VISSER, M. H. C. M.Sc. — Zool. Inst., Fac. of Sci., Univ. of Stellenbosch, 

 STELLENBOSCH, South Africa 

 a. General ontogeny. Gonaxis gwandaensis (Streptaxidae, Pulmonata) 



VIVIEN, J. H. Dr. esSci., M.I.I.E., Prof. — Lab. de Zool. et d'Embryol. 

 exper., Inst, de Zool. et de Biol, gener., 12 Rue de 1'Universite, STRAS- 

 BOURG, France 



a. Morphogenese des gonades et du tractus genital. (Selachii) (en collabo- 

 ration avec J. J. THIEBOLD) 



b. Correlations neuro-endocrines. (Pisces; Amphibia) 



VOLKOVA, L. S. Dr. — Inst, of Exper. Biol, of the Acad, of Med. Sci. of 

 the U.S.S.R., Baltiyskaya 8, MOSCOW D-315, U.S.S.R. 

 a. Immunological factors in the pathogenesis of haemolytic disease in new- 

 borns, and of pregnancy toxicosis. Homo sapiens (Primates) 



VOLPE, E. P. Ph.D. — Dept. of Zool., Newcomb Coll., Tulane Univ., 

 NEW ORLEANS 18, Louisiana, U.S.A. 



a. Embryonic temperature adaptations in various species. Bufo americanus, 

 B. terrestris, B. fowled, B. woodhousei, B. valliceps (Anura) 



b. Inheritance of color patterns. Rana pipiens (Anura) 



c. Interspecific hybridization. Bufo terrestris, B. fowleri, B. valliceps 

 (Anura) 



d. Descriptions of larvae. Bufo valliceps, B. quercicus, Rana palmipes, R. 

 capito sevosa (Anura) 



e. Development, sex and pigmentary patterns of gynogenetic diploids. Rana 

 pipiens (Anura) 



f. Gene dosage studies involving mutant color patterns. Rana pipiens 

 (Anura) 



VOY, A. Dr. es Sci. — Lab. de Zool. et Biol, anim., Fac. des Sci., POI- 

 TIERS, Vienne, France 



a. Croissance, regeneration. (Orthoptera) 



b. Oeufs a developpement rapide et oeufs a developpement retarde. Clo- 

 nopsis spec. (Orthoptera) 



VYASOV, O. E. Dr., M.I.I.E. — Inst, of Exper. Biol, of the Acad, of Med. 

 Sci. of the U.S.S.R., Baltiyskaya 8, MOSCOW D-315, U.S.S.R. 



a. The formation of lens-specific proteins (antigens). (Vertebrata) 



b. Study of antibody-like substances in embryonic cells which react with 

 antigens specific for early developmental stages. (Vertebrata) 



c. Study of immunological tolerance. (Vertebrata) 

 WADDINGTON, C. H. Sc.D., F.R.S., F.I.I.E., Prof. — Inst, of Animal 



Genet., Univ. Dept. of Genet., King's Buildings, West Mains Road, 

 EDINBURGH 9, Scotland 



a. Metabolism of radio-isotopes. Triturus spec. (Urodela) (in collaboration 

 with J. L. SIRLIN) 



b. Phenocopies. Drosophila spec. (Diptera) 



c. Developmental effects of metabolic antagonists. (Evertebrata; Vertebra- 

 ta) (in collaboration with Miss M. M. PERRY) 



d. Electron microscope studies of gene action, (in collaboration with Miss 

 M. M. PERRY) 



e. Study of certain features of developing embryos using electronmicro- 

 graphs. (Diptera; Amphibia) (in collaboration with G. G. SELMAN and 

 Miss M. M. PERRY) 



146 



