a. Etude biochimique du developpement de I'intestin; constitution et fonc- 



tionnement enzymatique. Gallus spec. (Aues) 

 SILeN, L. K. p. Fil.Dr, Prof. — Zootom. Inst., Univ. of Stockholm, 70A 



Radmansgatan, STOCKHOLM, Sweden 

 SILVER, P. H. S. Ph.D. — Anat. Dept, Middlesex Hosp., Med. School. 



LONDON W. 1, England 

 SIMON, Mrs D. Lie. es Sci. — Lab. de Zool. et d'Embryol. exper., Inst. 



de Zool. et de Biol, gener., 12 Rue de I'Universite, STRASBOURG, 



France 



a. Explantation in vitro de jeunes embryons et etude des besoins nutri- 

 tifs necessaires a leur survie, leur differenciation et leur croissance par des 

 aliments naturels et synthetiques entrant dans les milieux de culture. 

 Gallus spec. (Aves) 



b. La localisation et la migration des cellules germinales aux premiers sta- 

 des du developpement. Gallus spec. (Aves) 



SINCLAIR, J. G. B.S., M.S., Ph.D., Prof. — Dept of Anat., Med. Branch, 

 Univ. of Texas, GALVESTON. Tex., U.S.A. 



a. Anterior cerebral nerve plexus in adult and fetus. Tursiops truncatus, 

 Oryctolagus cuniculus, Mus musculus. Homo sapiens (Mammalia) 



b. Continued study of developmental anomalies. Brain. Heart. Mus muscu- 

 lus. Homo sapiens (Mammalia) 



c. Continued study of transplacental effects of urethan. Mus musculus 

 (Rodentia) 



d. Developmental pattern and mechanism of iris and ciliary body. Tursiops 

 truncatus, Oryctolagus cuniculus, Mus musculus, Homo sapiens (Mam-- 

 malia) 



SINGER, M. B.S.. A.M., Ph.D.. Prof. — Dept of Zool.. Cornell Univ.. 



ITHACA, N.Y., U.S.A. 

 a. Introduction of chemicals directly into developing regenerates and tissues 



by means of a method of microin fusion. Triturus viridescens viridescens 



(Urodela) (Urodela) 



h. Electron microscopic studies of regenerates. Ambystoma punctatum 

 c. The induction of regeneration in postmetamorphic animals by increase 



in nerve number. (Anura) 

 SINGER, R. M.B.. Ch.B., F.R.A.I. — Anat. Dept, Med. School, Univ. of 



Cape Town, MOWBRAY, C.P.. South Africa 



a. Development of clavicle, humerus and femur. Homo sapiens (Primates) 



b. Factors producing ectopia vesicae. Homo sapiens (Primates) 



c. Factors producing renal agenesis. Homo sapiens (Primates) 

 SINHA, A. B.Sc.(Hons) — Dept of Zoology. Presidency Coll., College St, 



CALCUTTA 12, India 



a. Cell transplantation and isolation. Hydra spec. (Coelenterata) (in colla- 

 boration with S. MOOKERJEE) 

 SIPPEL, T. O. A.B., Ph.D. — Dept of Anat., School of Med., Western 

 Reserve Univ., CLEVELAND, Ohio, U.S.A. 



a. Energy metabolism of the developing lens. Rattus rattus (Rodentia) 

 SIRAKAMI, K. I. M.A., Ph.D. — Biol. Dept, Yamanashi Univ., KoFU. 

 Japan 



a. Cell division of isolated blastomeres. Triturus pyrrhogaster, Bufo vulgaris 

 (Amphibia) garis (Anura) 



h. Normal Table on a cyto-embryological (cytometrical) basis. Bu[o vul- 



101 



