Sine 84 Sny 



b. Effects of urethane on reproduction and on the young across the placenta. 

 Mus musculus (C57 and CBA strains) (Rodentia) 



c. Anterior cerebral nerve plexus in adult and fetus. Phocaena, Oryctolagus 

 cuniculus, Mus musculus and Homo (Mammalia) 



SINGER, M. A.M., Ph.D., Prof. — Dept of Anat., Harvard Med. School, 



25 Shattuck Str., BOSTON 15, Mass., U.S.A. 



(no data received over this year) 

 SINHA, T. P. B.S., M.S., M.B., Prof. — Dept of Anat., Prince of Wales 



Med. Coll., PATNA, Behar, India. (no data received over this year) 

 SIPPEL, T. O. A.B. — Osborn Zool. Lab., Yale Univ., NEW HAVEN 11, 



Conn.. U.S.A. 

 a. Correlation of the morphological, physiological and biochemical events 



in the differentiation of the heart, with emphasis on the systems con- 



troHing rate. Amblystoma punctatum and Rana pipiens (Amphibia) 

 SKREB, N. Dr — Inst, de Biol., Fac. de Med., ZAGREB, Salata, Yougo- 



slavie. 



a. Etude des substances necessaires a la croissancc et a la differenciation 

 du blastoderme de I'oeuf, separe de son vitellus et cultive in vitro. 

 Salmo ivideus (Teleostei) (en collaboration avec Ch. DEVILLERS, 

 Coll. de France, PARIS) 



b. Etude de la plaque prechordale par la methode des marques colorees. 

 Bombinator igneus (Anura) et Triton vulgaris (Urodela) 



SLIJPER, E. J. Dr, Prof. — Zoologisch Lab. der Univ., Plantage Dok- 



laan 44, AMSTERDAM C, Holland, 

 a. The embryonic bloodcirculation (ductus Botalh, ductus Arantii, etc.). 



(Cetacea, Mammalia) 

 SLOTWInSKI, J. Dr, Prof. — Inst. d'Histol. norm, et d'Embryol. de I'Univ. 



Poznan, ul. Swiecickiego 6, POZNAN. Pologne. 



(no data received over this year) 

 SMIT, A. L. M.Sc. — Zool. Inst., Univ. of Stellenbosch, STELLENBOSCH, 



S. Africa. 



a. Ontogenesis of the vertebral column. Xenopus laevis (Anura) 



b. Ontogenesis of skeleton and muscles of the trunk region. Xenopus laevis 

 (Anura) (in collaboration with P. A. J. RYKE) (Normal Table) 



SMRECZYnSKYI, S. Ph.D. — Zool. Dept of the Jagellonian Univ.. 

 KRAKOW (Cracow), St Anne 6, Poland, 

 a. Determination of early developmental stages. Agelastica alni (Coleo- 

 ptera) (this work is temporarily in abeyance) 



SNELLEN. H. A. Med. Dr — Anat.-Embryol. Lab. of the Univ. of Leyden. 

 Fac. of Med., Wassenaarseweg, Boerhaavekwartier, LEIDEN. Holland, 

 a. Investigations on congenital heartmalformations; X-ray and anatomical 

 dissection; collateral circulations. Homo (Primates) (in collaboration 

 with J. DANKMEIJER and Miss R. M. COLLISTER) 

 SNOOK, T. Ph.D. — Dept of Anat., School of Med., Univ. of Pittsburgh, 

 PITTSBURGH 13. Pa., U.S.A. 

 a. Studies on the development of the spleen. Homo sapiens (Primates) 

 h. The relation of reticulum to epidermis in the developing hoof. Sus 

 (Artiodactyla) 

 SNYDER. F. F. M.D.. A.M., Prof. — Dept of Obstetrics and Anat., 

 Harvard Med. School. 25 Shattuck Str., BOSTON 15. Mass.. U.S.A. 

 (no data received over this year) 



