THEILER, K. Dr Med. — Anat. Inst, der Univ., Gloriastr. 19, ZuRICH. 



Schweiz 

 THIEBOLD, J. J. — Lab. de Zool., Inst, de Zool. et de Biol, gen., Fac. des 



Sci.. 12 Rue de I'Universite, STRASBOURG, France 

 a. Morphogenese des gonades et du tractus genital. (SelachV, Teleostei) 



(en collaboration avec J. VIVIEN et Th. MOSEN) 

 THOMASON, Miss D. B.A., Ph.D. — The Royal Free Hospital School of 



Med., 8 Hunter St, LONDON W.C. 1. England (U.K.) 



a. Phosphate metabohsm of nuclei in early development using P 32. (Am^ 

 phibia) (Amphibia) 



b. Study of phosphate metabolism in artificially induced microcephaly. 



c. Study of spermatogenesis using tracers. Xenopus laevis (Anuta) 

 THOMSON FLYNN, T. F.I.I.E., M.B.E., D.Sc, Prof. — Boston, Priest- 

 man's River, JAMAICA. West Indies 



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



Zurich, Schweiz ^^^^ 



THORNTON, C. S. A.B., M.A., Ph.D. — Kenyon College, GAMBIER, 

 Ohio. U.S.A. 



a. Correlation between apical epidermal cap and ability to regenerate a 

 limb in larval anurans. Rana pretiosa (Anuta) 



b. Removal of apical epidermal cap and effect on hmb regeneration. Am- 

 bystoma punctatum (Urodela) 



c. Foreign innervation of grafted limbs (from spinal cord grafted in tail 

 fin) and its effect on apical cap formation and limb regeneration. (Am- 

 bystoma opacum (Urodela) 



THURMOND, W. A.B., M.A. — Biol. Sci. Dept, Cahf. State Polytechnic 

 College, SAN LUIS OBISPO. Cal.. U.S.A. Regilla (Anura) 



a. The determination of onset of intermedin production and secretion. Hyla 



b. Factors controlling the differentiation of the pars intermedia heteroplas- 

 tically transplanted into albino larvae. Hyla Regilla (Anura) 



TIEDEMANN, H. Dr Med.. Dr rer. nat. — Heihgenberg-Inst., (17b) HEX- 

 LIGENBERG, Kreis Ueberhngen/Bodensee, Deutschland 

 a. Chemische physiologie der Entwicklung. (Amphibia) 

 TIEDEMANN— WAECHTER, Mrs H. Dr rer.nat. — Heiligenberg^nst., 

 (17b), HEILIGENBERG, Kreis Ueberlingen/Bodensee, Deutschland. 

 a. Chemische physiologie der Entwicklung. (Amphibia) 

 TIXIER— VIDAL, Mrs A. — Lab. d'Histophysiol.. Coll. de France. Place 

 Marcehn Berthelot, PARIS Ve, France 



a. Differenciation de la thyroide embryonnaire en culture d'organe (me- 

 thode de Vv^OLFF). Callus domesticus (Aves) 



b. Apparition de la fonction thyreotrope dans I'hypophyse embryonnaire 

 (etude experimentale). Gallus domesticus (Aves) 



TOIVONEN. S. I. F.I.I.E., Ph.D., Prof. — Dept of Physiol., Zool. Lab.. 

 Fac. of Mathem. and Nat. Sci., Univ. of Helsinki, P. Rautatiekatu 13. 

 HELSINKI. Finland 

 a. The specific action of heterogenous inductors. Triton (Urodela) 

 h. Analysis of the regulative potencies of the invaginating archenteron roof 

 and of the induced neural plate along the dorsoventral and craniocaudal 

 axes by heteroplastic transplantation of parts of the dorsal blastoporal 

 Up. Tritutus alpestris, taeniatus and cristatus (Urodela) (in collaboration 

 with P. D. NIEUWKOOP, Utrecht) 



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