b Regeneration, teratogenesis and tumour development. Dugesia (— Euplanaria) tigrina 

 ( Turbellaria) 



c Nudeo-histone changes during morphogenetic processes of regeneration. Dugesia ( =: 

 Euplanaria) lugubris (Turbellaria) 



d Nucleo-histone changes during embryonic development and regeneration. Triturus cristatus 

 (Urodela), Xenopus laevis (Anura) 



TORRES (WINTENBERGER), Mrs. S. Dr.es Sci.Nat. — Station Centr. de Physiol. 

 Anim., Inst. Natl, de la Rech. Agronom., C.N.R.Z.. 78 JOUY-en-JOSAS, France 



a Etude de la mortalite embryonnaire precoce; etude de revolution des oeufs aux premiers 

 stades, dans les conditions normales et avec variation de I'equilibre endocrinien de la 

 mere. Ovis acies (Artiodactyla) 



b Etude de la mortalite embryonnaire. Sus scrota (Artiodactyla) 



c Fertilization and development of superovulated eggs. Ovis aries (Artiodactyla) 



d Activite respiratoire des oeufs en liaison avec la mortalite embryonnaire. Ovis aries 

 (Artiodactyla) 



e Etude de I'activite respiratoire des blastocystes ages de 5 jours. Oryctolagus cuniculus 

 (Lagomorpha) 



TOTO, P. D. D.D.S., Prof. — Dept. of Oral Pathol., School of Dent., Loyola Univ., 1757 

 W.Harrison St., CHICAGO, 111. 60612, U.S.A. 



a Cytogenesis of myoblasts and myotubules in regenerating striated muscle (tracer studies). 

 Rattus norvegicus (Rodentia) 



b Cytogenesis of plasma cells in subcutaneous tissues (tracer studies). Mus musculus (Ro- 

 dentia) 



TOWERS, B. M.B., Ch.B. — Anat. School, Univ. of Cambridge, Downing St., CAM- 

 BRIDGE CB2 3DY, England 



a Development of fetal lung and changes at birth (experimental). Rattus rattus (Rodentia), 

 Ovis aries (Artiodactyla) 



b Structure and functions of fetal larynx (experimental). Rattus rattus (Rodentia), Ovis 

 aries (Artiodactyla) 



TRAMPUSCH, H. A. L. Ph.D. — Dept. of Anat. and Embryol., Univ. of Amsterdam, 

 Mauritskade 61, AMSTERDAM-O., Netherlands • 



a Mechanics of the morphogenetic field during regeneration. Ambystoma mexicanum (Uro- 

 dela) 



h Compatibility of xenoplastic blastemata, used for the study of regeneration. (Anura, 

 Urodela) 



c Regeneration from extremities, situated in heterotopic positions. Xenopus laevis (Anura) 



d Differentiation and de-differentiation during regeneration. Ambystoma mexicanum (Uro- 

 dela) (in collaboration with Mrs. A. E. HARREBOMlfiE) 



e Effect of X-rays on oogenesis and ovulation. Mas spec. (Rodentia) (in collaboration with 

 P. SMIT) 



f Analysis of fracture-repair. Ambystoma mexicanum (Urodela) (in collaboration with H. J. 

 PRINS) 



g Tracer studies in the course of regeneration. Ambystoma mexicanum (Urodela) 



TRASLER, Mrs. D. G. Ph.D. — Human Genet. Section, Dept. of Genet., McGill Univ., 

 MONTREAL, Que., Canada 



TRAURIG, H. — Depts. of Microbiol, and Biochera., Med. C^enter, Univ. of Kentucky, 

 LEXINGTON, Ky. 40506, U.S.A. 



a Analysis of the physico-chemical properties of DNA in differentiating cells. Triturus viri- 

 descens (Urodela), Gallus domesticus (Aves), Mus musculus, Rattus rattus (Rodentia). 

 Homo sapiens (Primates) (in collaboration with S. P. MODAK) 



TRELSTAD, R. L. M.D. — Developm. Biol. Lab., Massachusetts Gen. Hosp., BOSTON. 

 Mass. 02114, U.S.A. 



a The ultrastructure of cell contacts during early stages of development. Gallus domesticus 

 (Aves) 



h The analysis of mesenchymal tissue organization through evaluation of individual cartilage 

 cell orientation in the axial and limb skeleton. Gallus domesticus (Aves), Mus musculus 

 (Rodentia) 



c Changes in the intracellular position of the Golgi apparatus during epithelial-mesenchymal 

 interactions in the corneal epithelium and limb bud ectoderm. Gallus domesticus. Anas 

 platyrhynchos. Phasianus colchicus (Aves), Mus musculus (Rodentia) 



d Development of the fibrous architecture of the orthogonal collagen lamellae in the corneal 

 stroma. Gallus domesticus (Aves) 



TRINKAUS, J. P. Ph.D., Prof. — Dept. of Biol, Kline Biol. Tower, Yale Univ., NEW 

 HAVEN, Conn. 06520, U.S.A. • 



a Cell contacts, cell movements and mechanisms of morphogenetic movements with techni- 

 ques of cell culture, cinemicrography, electron microscopy, cell dissociation and reag- 

 gregation, electrophysiology and chemistry of the cell surface, and microsurgery. Pundulus 

 heteroclitus (Teleostei), Xenopus laevis (Anura). Gallus domesticus (Aves) 



175 



