a. Experimental teratology. Oryzias latipes (Teleostei), Mus musculus 

 (Rodentia) 

 SMITTEN, Mrs.N.A. Cand.med.sci. — Inst, of Animal Morphol.. Acad, of 

 Sci. of the U.S.S.R., Vavilov St. 12, MOSCOW V-133. U.S.S.R. 



a. Development of the sympatho-adrenal system. (Amphibia; Aves: Mam- 

 malia) 



b. Comparative embryological and experimental investigations of develop- 

 mental sources and of functional activity of the adrenal system cells 

 (light and electron microscopy). Rana arvalis, R.temporaria (Anura), 

 Lacerta agilis (Lacertilia) , Callus domesticus (Aves), Rattus norvegi- 

 cus, Mus musculus, Oryctolagus cuniculus (Mammalia) 



SMOLKER, R.E. B.S., M.A., Ph.D., Prof. — Dept. of Biol.. State Univ. of 

 New York at Stony Brook, STONY BROOK, N.Y., U.S.A. 

 a. Migration and localization of primordial germ cells. (Aves), Didelphys 

 virginiana (Marsupialia) 

 SMRECZYlslSKI, S. Ph.D. — Zool. Dept.. Jagiellonian Univ., ul. Krup- 

 nicza 50. KRAKOW, Poland 

 (no embryological work in progress) 

 SNELLEN, H.A. Med. Dr., Prof. — Dept. of Cardiol., Fac. of Med., Acad. 

 Ziekenhuis, LEIDEN, Netherlands 

 a. Heart and vessels in congenital malformations. Homo sapiens (Prima- 

 tes) (in collaboration with J.DANKMEIJER, Miss A.DEKKER and 

 MissH.C.vanlNGEN) 

 SOKOLOVA, Mrs.Z.A. Cand.biol.sci. — Dept. of Embryol.. Fac. of Biol., 

 Moscow Univ., MOSCOW V-234, U.S.S.R. 

 a. The influence of ionizing on structure and function of retinal cells. Rana 



spp. (Anura) 

 h. The development and structure of the eye. Limnaea stagnalis (Gastro- 

 poda) 



c. Regeneration of the eye lens. Limnaea stagnalis (Gastropoda) 



d. Mitotic activity of retinal cells. (Anura) 



e. The influence of some parts of the retina on the induction and differen- 

 tiation of the lens. (Anura) 



SOLfiRE, M. Dr.en Med. — Lab. d'Embryol., Fac. de Med., 45 Rue des 

 Sts.Peres, PARIS Vie, France 

 a. Developpement normal et anormal de I'appareil digestif. Mus rattus 

 (Rodentia) , Homo sapiens (Primates) 

 SOLOMON, J.B. Ph.D. — Chester Beatty Research Inst., Fulham Rd., 

 LONDON S.W.3, England 

 a. Onset of immune mechanisms in young animals. Gallus domesticus 



(Aves) 

 h. Trophoblastic and tumour growth. Mus spec. (Rodentia) 

 SOMA, T. — Nat. Inst, of Animal Industry, CHIBA-shi, Japan 

 SOMERS, G.F. D.Sc, Ph.D.(Med.), F.P.S.. F.I.Biol. — Reckitt & Sons, 

 160 Dansom Lane. HULL, England 

 a. The teratogenic effects of drugs; testing of drugs for foetal toxicity. 

 (Mammalia) 

 SONDHI, K.C. M.Sc, Ph.D. — Dept. of Physiol, and Zool., Rutgers Univ.. 

 NEWARK, N.J.. U.S.A. 

 a. Gene-controlled processes in the genesis of symmetry. Drosophila mela- 

 nogaster, D. subobscura (Diptera) 



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