TONDEUR, M. Cand. en Med. — Lab. d'Anat. et d'Embryol., Fac. de 



Med.. 97 Rue aux Laines, BRUXELLES, Belgique 

 a. Impregnation osmiee des jeunes stades. (Mammalia) 

 TONDURY, G. F.I.I.E., Prof. — Anat. Inst, der Univ., Gloriastr. 19, 



ZURICH, Schweiz 

 TOROK, L. J. — Inst, of Histol. and Embryol., Med. Univ., Tuzolto u. 58, 



BUDAPEST IX, Hungary 

 a. Investigation of regenerative processes with special consideration of the 



morphogenetic role of the central nervous system. Dugesia lugubris, Den- 



drocoelum lacteum (Turbellaria) 

 TORREY, Th. W. A.B., A.M., Ph.D. — Dept. of Zool. 2 Indiana Univ., 



BLOOMINGTON, Ind., U.S.A. 



a. Studies on development of gonads and sexual ducts. (Mammalia) 



b. Development of nephros. Homo sapiens (Primates) 



TRACY, H. C. Ph.D., Prof. (Emer.) —Dept. of Anat., Med. School, Univ. 

 of Kansas, LAWRENCE, Kansas, U.S.A. 



a. Development of the nervous system in relation to behaviour. Opsanus 

 tau (Pisces) 



b. Physiological stages in development. Opsanus tau (Pisces) 

 TRAMPUSCH, H. A. L. Ph.D., M.I.I.E. — Div. of exp. Morphol., Anat.- 



Embryol. Inst., Municipal Univ. of Amsterdam, Mauritskade 61, AM- 

 STERDAM O, Holland 



a. Studies aimed to investigate some inductive effects on regenerative blas- 

 temata. Ambystoma mexicanum (Urodela) 



b. Experiments designed to test relations of some inhibitors of embryonic 

 development to the effect of X-rays. (Urodela; Rodentia) (in collabora- 

 tion with J. van der BORDEN) 



c. Attempts to analize the differences in regenerative capacity between Am- 

 phibia and Mammalia. Ambystoma spec. (Urodela), Mus spec. (Roden- 

 tia) (in collaboration with D. J. JOCHEMS) 



d. Studies on the mechanism of recovery from the effect of X-rays in rege- 

 nerates. Ambystoma mexicanum (Urodela) (in collaboration with Miss 



e. Effect of X-rays on the pattern of nucleic acids in the regenerate. Am- 

 bystoma mexicanum (Urodela) (in collaboration with C. D. A. VER- 

 WOERD) 



TRINKAUS J. P. M.A., Ph.D. — Josiah Willard Gibbs Research Lab., Yale 

 Univ., NEW HAVEN 11, Conn., U.S.A. 



a. Cytodifferentiation. Fundulus heteroclitus (Teleostei), Gallus domesticus 

 (Aves) 



b. Cell affinities. Fundulus heteroclitus (Teleostei), Gallus domesticus 

 (Aves) 



c. Mechanism of morphogenetic movements. Fundulus heteroclitus (Te- 

 leostei), Gallus domesticus (Aves) 



TRUSLOVE, Miss G. M. B.Sc, Ph.D. — Dept. of Genet., Univ. Coll. 



London, Gower St., LONDON W.C. 1, England 

 a. Developmental genetics of skeletal mutants. Mus musculus (Rodentia) 

 TUCHMAN-DUPLESSIS, H. M.I.I.E., Prof. — Lab. d'Embryol., Fac. de 



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



a. Anencephalie. Homo sapiens (Primates) 



b. Teratogenese par bleu trypan, sulfamides hypoglycemiants, antimetabo- 

 lites. Rattus spec. (Rodentia) 



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