Smithb 85 Spr 



SMITHBERG. M. Ph.D. — Roscoe B. Jackson Mem. Lab . BAR HARBOR. 

 Me. U.S.A. 



a. Maternal influences upon prenatal development. Mus musculus (Ro- 

 dentia) 



b. Factors influencing survivability of transplanted ova. Mus musculus 

 (Rodentia) 



SMRECZYnSKI. S. Ph.D. — Zool. Dept of the Jagellonian Univ.. KRA- 

 KOW, St Anne 6. Poland 

 (no data received on Nov. 1^'. 1953) 



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

 Wassenaarseweg, Boerhaavekwartier. LEIDEN. Holland 

 a. Heart and vessels in congenital malformations. Homo (Primates) 

 (in collaboration with J. DANKMEIJER) 



SNOOK. T. B.Sc. M.Sc. Ph.D. — Dept of Anat., School of Med.. Univ. 

 of North Dakota. GRAND FORKS. N. Dak.. U.S.A. 



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



b. 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., Har- 

 vard Med. School. 25 Shattuck St, BOSTON 15, Mass.. U.S.A. 

 a. Action of analgesic agents on fetal respiration — Meperidine and levo- 



isomethadone. Lepus cuniculus L. (Lagomorpha) 

 h. Antidotal action of N-allylnormorphine to depression of fetus by 

 morphine, meperidine, levo-isomethadone. Homo sapiens (Primates) 

 SOBELS. F. H. Ph.D. — Genet. Inst, der Rijks Univ., Stationsstraat 9. 

 UTRECHT. Holland 

 a. Genetics and developmental physiology of the mutant type "Asym- 

 metric" with special reference to its abnormal abdomen character. 

 Drosophila melanogaster Meigen (Diptera) 

 SPIRITO. A. Dott.. Prof. — 1st. di Biol, gen., Fac. di Med., S. Pietro, 

 PERUGIA. Italia 

 a. Origine e natura dei tumori. Bufo (Anura) 

 SPOFFORD W. R. Ph.D., Prof. — Dept of Anat., School of Med., State 

 Univ. of New York, SYRACUSE 10, N.Y., U.S.A. 



a. Induction and determination in the neural plate. Ambystoma maculatum 



(Urodela) 



b. Experimental neurogenesis. Ambystoma maculatum (Urodela) 

 SPRATT Jr, N. T. A.B., Ph.D., Prof. — Dept of Zool., Coll. of Sci., Lit. 



and Arts, Univ. of Minnesota, MINNEAPOLIS 14, Minn., U.S.A. 



a. Investigating the nutrient requirements essential to morphogenesis and 

 growth in the early stages of development (pre-streak and streak blas- 

 toderms). Gallus domesticus (Aves) 



b. Survey of dehydrogenase enzymes in early embryos: 1. Localization of 

 enzyme activity. 2. Structural integrity and enzyme activity. Gallus do- 

 mesticus (Aves) 



c. Regeneration. Planaria spec. (Turbellaria) and Tubularia spec. (Coel- 

 entetata) 



d. Cytological study of the developmental center (organizer). Gallus 

 (Aves) 



