TUCHMANN-DUPLESSIS. H. M.I.I.E.. Prof. - Lab. dEmbryoi. Fac 

 de Med.. 45 Rue des Sts. Peres. PARIS Vie. France 



a. Anencephalie. Homo sapiens (Primates) 



b. Teratogenese par sulfamides hypoglycemiants. antimetabolites. Rattus 

 spec. (Hodentia) (en collaboration avec Mrs. L. MERCIER (PAROT) ) 



c. Influence des hormones sur le developpement foetal. Hattus spec. 

 (Uodentia) 



d. Influence des alcaloides du Rauwolfia. de la reserpine et de la deserpi- 

 dine, sur le developpement. Rattus spec. (Rodentia) (en collaboration 

 avec Mrs. L. MERCIER (PAROT) 



e. Influence des neuroleptiques sur la fertilite et le developpement foetal. 

 Rattus spec, Mus spec. (Rodentia), Oryctolagus cuniculus (Lagomor- 

 pha) 



f. Diabete experimental et grossesse. (Mammalia) 



I'UCKER. J. S. Ph.D. — Pacific Marine Station, Univ. of the Pacific, 



DILLOWS BEACH. Cal. 95204. U.S.A. 

 a. Reproductive cycles in marine benthic forms; influence of environmental 



factors and nutrition. (Polychaeta; Phoronidea; Lamellibranchia) 

 iUFT, P. H. M.A., Ph.D.. M.I. I.E. — Dept. of Zool.. Univ. of Edinburgh, 



West Mains Road. EDINBURGH 9, Scotland 



a. Embryonic growth: cell number, mass, density, uptake and distribution 

 of water. Xenopus laevis (Anura) 



b. Effect of morphogenetic inhibitors, e.g. /3-mercapto-ethanol. 



f UMANISHVILI. G. D. Doct.biol.sci. — Dept. of Biophysics. Inst, of Phy- 

 sics, Acad, of Sci. of the Georgian S.S.R., TBILISI. U.S.S.R. 



TUNG. T. C. Dr.. M.I.I.E. Prof. — Inst, of Zool.. Acad. Sinica. PEKING. 

 Haitien. China 



TURBYFILL. Ch. L. B.A., M.A., Ph.D. — Worcester Foundation for Exp. 

 Biol.. 222 Maple Avenue. SHREWSBURY. Mass.. U.S.A. 

 a. Effects of irradiation on germ cells and early development. Mesocricetus 

 auratus (Rodentia) 



TWEEDELL, K. S. B.S., M.S.. Ph.D., Prof. — Dept. of Biol.. Univ. of 

 Notre Dame. NOTRE DAME. Ind., U.S.A. 



a. Role of subcellular particles in differentiation of living marine eggs. 

 Pectinaria gouldii (Polychaeta) 



b. Inhibition of hydranth regeneration. Tubularia crocea (Hydroidea) 



c. Renal tumor induction by subcellular fractions in embryonic and larval 

 stages. Rana pipiens (Anura) 



TWITTY, V. C. Dr.. M.I.I.E.. Prof. — Dept. of Biol. Sci.. Stanford Univ., 



STANFORD. Cahf.. U.S.A. 

 TYLER. A. Ph.D., M.I.I.E.. Prof. — Dept. of Devel.Biol.. Div. of Biol., 



California Inst, of Technol.. PASADENA 4. Cahf. 9 11 09. U.S.A. 



a. Physiology of fertilization. (Echinoidea) 



b. Physiology of early development. (Polychaeta; Echinoidea) 



c. Life-span, motility and metabolism of spermatozoa. (Annelida; Mollus- 

 ca; Echinodermata; Aves; Mammalia) 



d. Immuno-embryology; developmental immunogenetic analysis of cancer. 

 (Echinodermata; Mammalia etc.) 



e. Protein biosynthesis during early development. Marine animals (Echi- 

 nodermata etc.) 



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