as a (with L. I. SORIANO and Y. CROISILLE) 

 c Reverse transcription in embryonic brain. Callus domesticus (Aves) (with Y. CROISILLE and 



L. I. SORIANO) 

 d Immunological detection of new embryological components of skin keratins. Same species as c 



(withJ.DESVEAUX) 

 SMITH,, Miss C; Ph.D. - Dept. of Pathol., Univ. of Bristol, University Walk,.BRISTOL BS8 ITD, 



England 

 a Immunology of reproduction. Mus musculus (Rodcntia), Homo sapiens (Primates) 

 b Biology of the trophoblast. Same species as a 

 c Early embryonic development. Mus musculus (Rodentia) 

 SMITH, J. L.; B.Sc. - Dept. of Zool., Univ. of Liverpool, Brownlow St., P.O. Box 147, LIVERPOOL 



L69 3BX, England 

 a Factors affecting aggregation of early embryonic cells. Xenopus laevis (Anura) 

 SMYTH, J. D.; Sc.D., Prof. - Dept. of Zool. &' Appl. Entomol., Imp. Coll. of Sci. & Technol., Prince 



Consort Rd., LONDON SW7 2BB, England 

 a In vitro differentiation. Echinococcus granulosus and other spp. (Cestoda) 

 SNOW, M. H. L.; Ph.D. - MRC Mammalian Devi. Unit, Univ. Coll. London, Wolfson House, 4 



Stephenson Way, LONDON mVl 2HE, England 

 a Differentiation in preimplantation stages (1 to 150 cells) in vivo and in vitro. Mus musculus 



(Rodcntia) 

 b Effects of heteroploidy, especially on embryonic development. Same species as a 

 c Differentiation of post-implantation stages, up to 8d gestation. Same species as a 

 d Chromosome behaviour in embryos up to 8d gestation. Same species as a 

 SOBIS, Mrs. H.; M.D. - Rega Inst., Cath. Univ., Minderbroederstr.lO, 3000 LEUVEN, Belgium 

 a Teratomas induced by displacement of visceral yolk sac. Rattus spec, Mus musculus, 



Mesocricetus auratus (Rodentia) 

 b Yolk sac carcinoma and virus induced embryological carcinomas. Rattus spec. (Rodentia) 

 SOBOTKA, P.; M.D., CSc. - Inst, of Pathophysiol., Charles Univ., Lidicka 1, 306 05 PLZEfvI, 



Czechoslovakia 

 a Influence of amino acids, newly synthesized drugs, and other substances on electrogenesis of the 



central nervous system during early postnatal development. Rattus norvegicus (Rodentia) 

 SOEKARJO, R.;Dr. - Limnol. Inst., Rijksstraatweg 6, NIEUWERSLUIS, Netherlands 

 a Influence of ecological factors on, and hormonal regulation of growth (morphological para- 

 meters). Ceratophyllum demersum (Ceratophyllaceae) 

 SOKOLOVA, Mrs. Z. A. Chair of Embryol., Biol. Fac, State Univ. of Moscow, Lenin Hills, 



MOSCOW 117234, U.S.S.R. 

 SOLOGUB, Mrs. A. A.; Cand.biol.sci. - Inst, of Devi. Biol., USSR Acad, of Sci., Vavilov St.26, 



MOSCOW 117334, U.S.S.R. 

 a Stimulation of metaplasia of the pure pigmented epithelium of adults into retina by means of 



agents from newly differentiated retina. Mus musculus (Rodentia) (with G. V. LOPASHOV) 

 SOLOMON, J. B.; Ph.D., D.Sc. Immunol. Unit., Dept. of Bacteriol., Univ. of Aberdeen, Foresterhill, 



ABERDEEN AB9 2ZD, Scotland, U.K. 

 a Onset of immunocompetence by phytohaemagglutinin-induced transformation of foetal 



lymphoid cells and haemolytic plaque-forming cells in vitro. Rattus norvegicus, Cavia porcellus 



(Rodentia) 

 SOLTER, D.; M.D., D.Sc. - Inst, of Biol., Fac. of Med., Univ. of Zagreb, Salata 3, P.O. Box 166, 



41001 ZAGREB, Yugoslavia 

 a Preimplantation and early post-implantation stages; autoradiography, histochemistry, electron 



microscopy. Rattus norvegicus, Mus musculus (Rodentia) (with I. DAMJANOV, Inst, of Pathol.) 

 b Differentiation of early post-implantation stages under the kidney capsule, teratocarcinogenesis, 



nature of embryonal carcinoma cells; transplantation, electron microscopy. Mus musculus 



(Rodentia) (with I. DAMJANOV and N. SKREB) 

 c Protein patterns in embryo-derived teratocarcinomas and in host serum (polyacrylamide electro- 

 phoresis). Same species as b (with D. SERMAN) 

 d Urethan tcratogenesis in early embryos (histochemistry, electron microscopy). Same species as b 



(with I. DAMJANOV, Inst, of Pathol.) 

 SOLTYIsJSKA (MARCINKOWSKA), Mrs. M.; Dr. - Dept. of Cytol., Zool. Inst., Warsaw Univ., 



Krakowskie Przedmiescie 26/28, WARSAWA 64, Poland 

 SORIANO, L. I.; M.D. - Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle 



Gabrielle, 94130 NOGENT-sur-MARNE, France 

 a DNA polymerase activities in embryonic tissues. Gallus domesticus (Aves) (with Y. CROISILLE 



and E. J. C. SMITH) 

 b Reverse transcription in embryonic brain. Gallus domesticus (Aves) (with Y. CROISILLE and 



E. J. C. SMITH) 

 SPENCER, A. N.; Ph.D. - Inst, of Biol., Odense Univ., Niels Bohrs AUe, ODENSE 5000, Denmark 

 a Membrane potential of ectodermal epithelial cells during embryonic development; function of 



conducted electrical events (microelectrodes, piezoelectric cannon). Macropodus opercularis, 



Salmo trutta (Teleostei) 

 SPINELLI, Miss M. M. G.; Dent. - Lab. de Zool, Dept. de Biol., Univ. Sci. et Med. de Grenoble, 



B.P.53, 38041 GRENOBLE, France 

 a Ultrastructure and differentiation of dental buds. Rana temporaria, Bufo bufo (Anura) 

 b In vitro culture of dental buds. Rana spec, Bufo spec. (Anura), Pleurodeles spec. (Urodela) 

 SPORNITZ, U. M. - Anat. Inst, der Univ., Pestalozzistr.20, 4056 BASEL, Switzerland 

 a Oogenesis and early degeneration of eggs. (Amphibia) 



95 



