Trin 90 Uch 



TRINKAUS, J. P. M.A., Ph.D. — Osborn Zool. Lab.. Yale Univ., NEW 

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



a. Mechanism of gastrulation. Analysis of epiboly with particular attention 

 to role of periblast. Fundulus heteroclitus (Teleostei) 



b. Investigation of the nutritional role of yolk and its constituents in early 

 morphogenesis, by the method of explantation in vitro of yolkfree 

 blastoderms at blastula and gastrula stages. Fundulus heteroclitus 

 (Teleostei) 



c. Experimental studies on histogenesis of melanoblasts. Gallus domesticus 

 (Aves) 



TRUSLOVE. Miss G. M. B.Sc, Ph.D. — Dept of Zool. and Comp. Anat., 

 Univ. Coll. London, Gower St, LONDON W.C. 1, England (U.K.) 



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



b. The determination of the capacity of the annular tympanic cartilage of 

 metamorphosing anim.als to induce tympanic membrane formation when 

 heteroplastically and xenoplastically transplanted. Xenopus laevis 

 (Anura) (in collaboration with D. R. NEWTH) 



TUFT, P. H. M.A.. Ph.D. (cantab.) — Dept of Zool., Univ. of Edinburgh, 



West Mains Rd., EDINBURGH 9, Scotland (U.K.) 

 a. Respiratory metabolism of developing eggs. Rhodnius prolixus, Locustana 



pardalina and Calliphora (Insecta) 

 TUNG, T. C. Dr, Prof. — Dept of Zool., Univ. of Shantung, TSINGTAO, 



China. (no data received) 



TWEEDELL, K. S. — Dept of Zool.. Univ. of Illinois, URBANA, 111., 



U.S.A. 



a. Specificity and differential growth of the Lucke carcinoma. Rana (dif- 

 ferent spec.) (Anura) 



b. Differential growth of Lucke carcinoma. Rana pipiens (hybrid sub- 

 spec.) (Anura) orr^Axr 



TWITTY, V. C. Dr, Prof. — Dept of Biol. Sci., Stanford Univ., STAN- 

 FORD, Cal., U.S.A. 



a. The differentiation of macrophages into melanophores follov/ing their 

 ingestion of pigmentary debris released by degeneration of preexisting 

 melanophores. (Amphibia) (in collaboration with M. C. NIU) 



b. The transformation of differentiated xanthophores into typical melano- 

 phores. (Amphibia) (in collaboration with M. C. NIU) 



c. The migratory behaviour of single neural crest melanoblasts isolated 

 in capillary tubes of extremely small bore. (Amphibia) (in collaboration 

 with M. C. NIU) 



TYLER A. Ph.D., Prof. — Dept of Embryol., Div. of Biol., Cahfornia Inst. 

 ofTechnol.. PASADENA 4. Cal.. U.S.A. 

 a. Physiology of fertihzation. (Echinoidea) 



h. Physiology of early development. (Echinoidea), (Polychaeta) 

 c. Life-span, motiUty and metabolism of spermatozoa. (Echinodermata, 

 Annelida. Mollusca, Aves and Mammalia) 

 UBISCH, L. V. Drjur. et phil.. Prof. (Emer.) — PARADIS, Norge. 



a. Untersuchungen iiber Pleuronectiden. III. (Pleuronectidae, Teleostei) 

 UCHIDA, T. Rigakushi (M.S.), Rigakuhakushi (Dr), Prof. — Zool. Inst., 

 Fac. of Sci., Hokkaido Univ., North 8, West 5, SAPPORO, Japan. 

 a. On the development of oviform cells in the testis. Upogebia major (Deca- 

 poda reptantia, Crustacea) 



