rubrocincta (Polychaeta), Phoronopsis viridis (Phoronida), Macoma secta, M. nasuta 



(Lamellibranchia) -..'i^« M 



TUFT, P. H. Ph.D. — Dept. of Zool., Univ. of Edinburgh, West Mains Rd.. EDINBURGH 



EH9 3JN, Scotland, U.K. • 



TUMANISHVILI, G. D. Dr., Prof. — Dept. of Biophys., Inst, of Exper. Morphol., Acad, of 



Sci. of the Georgian SSR., 51 Kamo St., TBILISI 2, U.S.S.R. 

 a Role of chemical intercellular interactions in regulation of the rate of cell multiplication 



and intracellular synthesis studied in cell cultures and in vivo. Gallus domesticus 



(Aves), Rattus norvegicus, Mus musculus (Rodentia) 

 b Participation of intracellular substances in gastrulation. Misgurnus fossitis (Teleostei) 

 c Participation of nuclear and cytoplasmic substances in control of state of DNA in 



chromatin. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) 

 TUNG, T. C. Dr., Prof. — Inst, of Zool., Acad. Sinica, PEKING, Haitien, People's Republ. 



of China r^xm * ouor 



TUPPER, J. T. Ph.D. — Dept. of Biol., Syracuse Univ., College Place 130, SYRACUSE, 

 N.Y. 13210, U.S.A. 



a The role of intercellular communication and membrane permeability in early embryonic 

 differentiation ,«».«««, 



TURCHINI, J. P. D.M., D.Sc, Prof. — Lab. d'Histol.-Embryol., Fac. de Med., Bd. Winston 

 Churchill, B.P. 38, 63 CLERMONT-FERRAND, France 



a Cytology of neonatal liver; differentiation of intercellular junctions, characters of micro- 

 bodies; histochemical differentiation. Mus musculus (Rodentia) (with R. POURHADI and 

 P. MALET) ' , e 



TURNER, D. C. Ph.D. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonnegg- 

 str. 5, 8006 ZURICH, Switzerland 



a I n v i t r o differentiation of imaginal discs. Drosophila melanogaster (Diptera) 



TWEEDELL K. S. Ph.D., Prof. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, 

 Ind. 46556, U.S.A. « 



a Oocyte development and incorporation of radioactive precursors. Pectinarta gouldu 

 (Polychaeta) 



b Cell source and movement during hydranth regeneration. Tubularia crocea (Hydrozoa) 



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



TYLER, C. Ph.D., D.Sc, Prof. — Dept. of Physiol. & Biochem., The Univ., Whiteknights, 



READING RG6 2AJ. England 

 a Structure and properties of the egg shell. (Aves) 

 TYNDALE-BISCOE, C. H. Ph.D. — Dept. of Zool., School of Gen. Studies, Australian 



Nat. Univ., P.O.Box 4, CANBERRA, A.C.T. 2600, Australia 

 a Early development, including fine structure. Antechinus stuarti (Marsupialia) 

 b Fine structure of the blastocyst. Macropus eugenii (Marsupialia), Oryctolagus cuniculus 



(Lagomorpha) 

 c Factors involved in resumption of development by blastocysts in diapause. Macropus 



eugenii (Marsupialia) 

 TYSZKIEWICZ, Mrs. K. M.Sc. — Zool. Dept.. Jagiellonian Univ., ul.Krupnicza 50, 



KRAKOW, Poland 

 a Embryogenesis of nervous system. Tetrodontophora bielanensis (Collembola) 

 UBBELS, Miss G. A. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, 



Universiteitscentrum "De Uithof", UTRECHT, Netherlands 

 a Cytochemical heterogeneity of the egg, cleavage stages and early embryo. Amby stoma 



mexicanum, Xenopus laevis (Amphibia) 

 b Cytochemistry of the origin of dorso-ventral polarity of the egg. Same species as a (with 



P. D. NIEUWKOOP) 

 UCHIDA, T. A. Dr.Agr. — Zool. Lab., Fac. of Agric, Kyushu Univ., FUKUOKA, Japan 

 a Reproduction and embryology. Pipistrellus abramus, Miniopterus schreibersi (Chiroptera) 

 UEMURA, I. — Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, 



Fukazawa-machi, Setagaya-ku, TOKYO, 158 Japan 

 a Electron microscopy of the development of primary mesenchyme cells. Hemicentrotus 



pulcherrimus (Echinoidea) 

 ULBERG L C. Ph.D., Prof. — Dept. of Anim. Sci., North Carolina State Univ., P.O.Box 



5127, RALEIGH, N.C. 27607, U.S.A. 

 ULLMANN, Miss S. L. Ph.D. — Dept. of Zool., The Univ., GLASGOW W.2, Scotland, 



U.K. • 



ULRICH, H. Dr.phil., Prof. — Dept. of Zool., Swiss Fed. Inst, of Technol., Universitatstr. 2, 



8006 ZURICH, Switzerland 

 a Action of x-rays on eggs and embryos. Drosophila melanogaster (Diptera) 

 b Morphology, physiology, and cytology of paedogenetic-bisexual reproduction cycle. 



Heteropeza pygmaea (- Oligarces paradoxus), Miastor metraloas (Cecidomyiidae, 



Diptera) 

 c Time-lapse cinemicrography of embryonic development and chromosome elimination in 



early cleavage. Heteropeza pygmaea (Cecidomyiidae, Diptera) 



184 



