Tim-Tra 



TIMOURIAN, H. B.A., Ph.D. — Dept. of Embryol., Div. of Biol., California 

 Inst, of Technol., PASADENA 4, Calif., U.S.A. 

 a. Protein synthesis and antigens in marine embryos. ( Echinodermata) 



TISNA-AMIDJAJA, D. A. Dipl.Biol., Dr.rer.nat. — Dept. of Chemistry and 

 Biol., Inst, of Technol. Bandung, Djl. Ganeca 10, BANDUNG, Indonesia 

 a. The reproductive cycles of some species in West-Java. Hipposideros spec. 

 (Microchiroptera) , Cynopterus spec. (Megachiroptera) 



TITOVA, 1. 1. Dr. — Inst, of Exper. Biol., Acad, of Med. Sci. of the U.S.S.R., 

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



TITSCHACK, H. Dipl.-Biol. — Zool. Inst., Techn. Hochschule, DARM- 

 STADT, Deutsche Bundesrepublik 



a. Priifung der Potenzen der Flankenregion zur Extremitatenbildung. Am- 

 by stoma mexicanum (Urodela) 



b. Implantierung verschiedener Gewebe in einen bestrahlten Beinstumpf, 

 ura die Beteiligung des Wirtsgewebes an der Regeneration auszuschalten 

 und die Einwirkung des Implantats auf die Differenzierung des Regene- 

 rates zu priifen. Ambystoma mexicanum (Urodela) 



TIXIER (VIDAL), Mrs. A. Dr. es Sci. — Lab. d'Histophysiol., Coll. de 



France, 1 1 Place Marcelin Berthelot, PARIS Ve, France 

 TOBLER, H. Cand.phil. — Zool.-vergl.Anat. Inst., Naturwiss. Fak., Univ. 



Zurich, Kiinstlergasse 16, ZURICH, Schweiz 

 a. Pteridines and spermatogenesis in larval and pupal testis, revealed by 



transplantation and paper chromatography. Drosophila melanogaster 



(Dipt era) 

 TOERIEN, M. J. M.Sc, Ph.D. — Dept. of Anat, Univ. of Stellenbosch, 



STELLENBOSCH, Republic of South Africa 



a. Cranial development. Podiceps cristatus (Podicipitidae, Aves) 



b. Chondrocyte sources of auditory capsule and columella auris. Chelydra 

 serpentina (Testudines, Reptilia), Gallus domesticus (Aves) 



(no embryological work in progress) 

 TOIT, C. A. du M.Sc, Ph.D., M.I.I.E., Prof. — Zool. Inst., Fac. of Sci., 



Univ. of Stellenbosch, STELLENBOSCH, Republic of South Africa 

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



Helsinki, Arkadiankatu 7, HELSINKI, Finland 



a. The specific action of heterogenous inductors. Triturus spec. (Urodela) 



b. The mechanism of the primary induction. Triturus spec. (Urodela) (in 

 collaboration with L. O. SAXEN and E. T. VAINIO) 



c. Viral resistance and kidney tubulogenesis. Mus musculus (Rodentia) (in 

 collaboration with L. O. SAXEN and E. T. VAINIO) 



TOKIN, B. P. Dr.Biol.Sci., Prof. — Dept. of Embryol., Leningrad Univ., 

 Mendeleevsky St. 5, LENINGRAD, U.S.S.R. 

 a. Regeneration and somatic embryogenesis. Beroe cucumis (Ctenophora), 

 Laomedea flexuosa (Coelenterata), Balinopsis infundibulum and other 

 spp. 



TOKIN, I. B. Cand.biol.sci. — Dept. of Embryol., Leningrad Univ., Mende- 

 leevsky St. 5, LENINGRAD, U.S.S.R. 



a. Electron microscopy of germ cells. Mus norvegicus albinus (Rodentia) 



b. Electron microscopy of the process of regeneration. Rana temporaria and 

 other spp. (Anura) 



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