SMITH, S. T. B.Sc. — Dept. of Zool.. Univ. of Bristol. BRISTOL 8. England 

 SMITHBERG, M. Ph.D.. Prof. — Dept. of Anat.. School of Med.. Univ. of Minnesota. 



MINNEAPOLIS. Minn. 55455. U.S.A. 

 a E.xperimental teratology. Oryzias latipes (Teleostei), Mus musculus (Rodentia) 

 SMITTEN, Mrs. N. A. Cand.mcd.sci. — Inst, of Developm. Biol., Acad, of Sci. of the 



U.S.S.R., Vavilov St. 26. MOSCOW V-133, U.S.S.R. 

 a Development of the sympatho-adrenal system. (Amphibia; Aves; Mammalia) 

 h Comparative embryological and experimental investigations of developmental sources and 

 of functional activity of the adrenal system cells (light and electron microscopy). Rana 

 arualif, R. tempovavia (Anura), Lacerta agilis (Lacertilia), Gallus domesticus (Aves). 

 Rattus norvegicus, Mus musculus, Oryctolagus cuniculus (Mammalia) 

 SMOLKER. R. E. Ph.D.. Prof. — Dept. of Biol., State Univ. of New York at Stony Brook. 



STONY BROOK. N.Y. 11785, U.S.A. 

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



pialia) 

 b Cell aggregation and morphogenesis. Microciona pcolifera (Demospongiae, Porifera) 

 SOBOTKA. P. M.D., CSc. — Inst, of Pathophysiol.. Med. Fac, Charles Univ.. Lidicka 1, 



PLZE5J, Czechoslovakia 

 a Relationships between biochemical and electrophysiological correlates of brain development 



in ontogenesis. Rattus norvegicus (Rodentia) 

 SOFER. W. H. Ph.D. — Dept. of Biol.. Johns Hopkins Univ.. Charles and 34th Sts.. BAL- 

 TIMORE. Md. 21218, U.S.A. 

 a Changes in alcohol dehydrogenase during development. Drosophila melanogaster (Diptera) 

 b Changes in nucleic acids during development. Arbacia punctulata (Echinoidea) 

 SOIKA, N. J. D.V.M. — Vivarium. School of Med.. Univ. of Virginia. CHARLOTTES- 

 VILLE, Va. 22901, U.S.A. 

 a Influence of hormonal state of the female on the fertilizing ability of sperm (comparative 

 study). Oryctolagus cuniculus (Lagomorpha), Rattus norvegicus (Rodentia), Canis 

 familiaris (Carnivora) 

 SOKOLOVA, Mrs. Z. A. Cand.biol.sci. — Dept. of Embryo!.. Fac. of Biol., Moscow Univ., 



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

 SOLERE. M. Dr.en Med. — Lab. d'Histol.-Embryol. B. Fac. de Med. de Paris. 45 Rue des 



Sts. Peres. PARIS Vie. France 

 a Development of the brain and sensory organs. Homo sapiens (Primates) 

 SOLOGUB, Miss A. A. — Inst, of Developm. Biol.. Acad, of Sci. of the U.S.S.R., Vavilov St. 



26. MOSCOW V-133. U.S.S.R. 

 a Metaplastic potencies of embryonic and larval eye for retina and lens regeneration, and 

 attempts of their stimulation. Leuciscus bergi (Cyprinidae), Anoptichthys jordani (Char' 

 acidae, Teleostei), Rana temporaria, R. esculenta, R. ridibunda (Anura) (in collaboration 

 with G. V. LOPASHOV) 

 SOLOMON, J. B. Ph.D. — Dept. of Bacteriol., Univ. of Aberdeen, ABERDEEN, Scotland 

 SOLTER. D. M.D. — Inst, of Anat.. Fac. of Med.. ZAGREB. Salata. Yugoslavia 

 a Investigation of early differentiation; autoradiography. Rattus norvegicus (Rodentia) (in 



collaboration with N. §KREB, Inst, of Biol.) 

 SOLTYKiSKA (MARCINKOWSKA), Mrs. M. Mgr.of Sci. — Inst, of Zool.. Warsaw Univ., 



WARSZAWA 64, Poland 

 SOMERS. G. F. D.Sc, Ph.D. (Med). — Reckitt & Sons. 160 Dansom Lane, HULL. England 

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

 SONDHI, K. C. Ph.D.. Prof. — Dept. of Physiol, and Zool., Rutgers Univ., NEWARK. 



N.J. 07102. U.S.A. 

 a Gene controlled processes in the genesis of symmetry. Drosophila melanogaster. D. 



subobscura (Diptera) 

 b Evolutionary morphogenesis. Drosophila melanogaster, D. subobscura (Diptera) 

 c Development and ageing. Drosophila melanogaster (Diptera) 

 SORIANO, L. I. M.D., Dr.Sc. — Inst. d'Embryol. et Teratol. exper. du C.N.R.S., 49 bis Av. 



de la Belle Gabrielle. 94-NOGENT-sur-MARNE. France 

 a Differenciation des epitheliums par la methode des dissociations et reassociations en culture 



in vitro. Mus musculus (Rodentia) 

 b Action de la vitamine A. de I'hydrocortisone et de I'actinomycine sur la keratinisation 



oesophagienne in vitro. Mus musculus (Rodentia) 

 SOUPART. P. M.D.. Ph.D., Prof . — Dept. of Obstetrics and Gynecol.. Vanderbilt Univ. 



School of Med., NASHVILLE, Tenn. 37203, U.S.A. 

 a Chemical composition and structure of the zona pellucida. (Mammalia) 

 b Studies on the nature of sperm capacitation (quantitative hormonal control of capacitation, 

 ultrastructural relationship between spermatozoa and capacitation environment, influence 

 of experimentally delayed capacitation on incidence of embryonic mortality and birth 

 defects). Oryctolagus cuniculus (Lagomorpha) 

 SOVA, J. C.Sc. — Inst, of Histol. and Embryol., Fac. of Med.. Charles Univ., Karlovarska 



48, PLZEN. Czechoslovakia 

 a Ontogeny and phylogeny of the processes in the apocrine type of secretion. (Amniota) 



141 



