homozygosity at different times of development, and clonal analysis of the mutant wing. 

 Drosophila melanogaster (Diptera) 

 b Analysis of embryo development by means of nuclear transplantation. Drosophila melanogaster, 



D. simulans, D. erecta, D. subobscura (Diptera) 



SANTORO D'ANGELO, Mrs. L.; Prof. - 1st. di Biol. Gen., Univ. di Roma, Policlinico Umberto I, 



00100 ROMA, Italy 

 a Effects of gravity acceleration during growth of primary root. Vicia faba (Papilionaceae) 

 b Effects of 1-asparaginase, strychnin, and veratrum during embryonic development. Rana 



esculenta, Bufo vulgaris (Anura) 

 SANYAL, S.; Ph.D. - Dept. of Anat., Erasmus Univ., Postbox 1738, ROTTERDAM 3002, Nether- 

 lands 

 a Phenogenesis of the retinal degeneration gene (rd) (enzyme histochemistry, electrophoresis, 



isozymes, protein separation, light and electron microscopy). Mus musculus (Rodentia) 

 SAUER, H. W.; Dr.rer.nat. - Abt. Entw.biol., Fachber. Biol, der Univ., Postfach 7733, 775 



KONSTANZ, B.R.D. (Germany) 

 a Regional differences in protein composition in early development (SDS polyacrylamide gel 



electrophoresis). Acheta domesticus (Orthoptera) 

 b Activities of isolated RNA polymerases in relation to differential transcription in the develop- 

 mental cycle. Physarum polycephalum (Eumycetozoina) 

 c Replication-transcription coupling m the mitotic cycle. iJame species as b 

 SAUNDERS, D. S.; Ph.D. - Dept. of Zool., Univ. of Edinburgh, West Mains Rd., EDINBURGH 



EH9 3JT, Scotland, U.K. 

 a Photoperiodic control of development and diapause. Nasonia vitripennis (Hymenoptera), 



Sarcophaga argyrostoma (Diptera) 

 SAUSSEY, M.; Dr.es Sci., Prof. - Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14032 CAEN, 



France 

 a Regeneration, sexuality and diapause. Allolobophora icterica, A. spp. (Oligochaeta) 

 SAUZIN-MONNOT, Mrs. M. J. - Lab. de Biol. Anim. A, Fac. des Sci., Univ. Paris-Sud, Bat.445, 



91405 ORSAY, France 

 a Ultrastructure du blasteme de regeneration: la differenciation des neoblastes. (Planariidae, 



Turbellaria) 

 SAXfiN, Miss I. P. N.; D.D.S. - Lab. of Exp. Embryol., III.Dept. of Pathol., Univ. of Helsinki, 



Haartmaninkatu 3, 00290 HELSINKI 29, Finland 

 a Drug-induced teratogenesis in vitro. Mus musculus (Rodentia) 

 b Tissue-interactions in tooth development. Same species as a 

 SAXfiN, L. O.; M.D., Phil.lic, Prof. - Lab. of Exp. Embryol., III. Dept. of PathoL, Univ. of Helsinki, 



Haartmaninkatu 3, 00290 HELSINKI 29, Finland 

 a Mechanism of primary induction. Triturus spec. (Urodela) (with S. I. TOIVONEN, Dept. of 



Zool.) 

 b Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with J. J. WARTIOVAARA, 



E. LEHTONEN, and S. NORDLING) 



SAXOD, R.; D.Sc. - Lab. de Zool. et Biol. Anim., Univ. Sci. et Med. de Grenoble, B.P.53, Centre de 



Tri, 38041 GRENOBLE, France 

 a Experiments on the differentiation of the cutaneous sensory corpuscles. Gallus domesticus. Anas 



platyrhynchos (Aves) 

 b Development of cutaneous nerve supply and nerve compensation; neurotaxis. Gallus domesticus 



(Aves) 

 c In vitro associations of spinal ganglia and dermal mesenchyme for the study of development of 



cutaneous sensory end organs. Gallus gallus. Anas platyrhynchos (Aves) 

 SAZHINA, Miss M. V.; Cand.biol.sci. - Phenogenet. Lab., Inst, of Gen. Genet., Acad, of Sci. of the 



U.S.S.R., Profsojuznaya St. 7 (I), MOSCOW 117312, U.S.S.R. 

 a Developmental study of mutant gene effects on cell proliferation and differentiation. Mus 



musculus (Rodentia) 

 SBRENNA, G.; Dr.Biol. - 1st. di Zool., Univ. di Ferrara, Via Previati 24, 44100 FERRARA, Italy 

 SCALI, v.; Dr.Nat.Sci. - 1st. di Zool. c Anat. Comp. deirUniv., Via A. Volta 4, 56100 PISA, Italy 

 SCARANO, E. Lab. Intern, di Genet, e Biofis., Via G.Marconi 10, 80125 NAPOLI, Italy 

 SCHAFER, U. - Inst, fur Allgem. Biol., Univ. Dusseldorf, Ulenbergstr:' 127-129, 4000 



DUSSELDORF, B.R.D. (Germany) 

 a Gene physiology, Y chromosome. Drosophila spp. (Diptera) 

 b Genetic regulation of differentiation; male germ line cells. Drosophila hydei, D. neohydei 



(Diptera) 

 c Magnification of ribosomal RNA genes in the Y chromosome. Drosophila hydei (Diptera) 

 SCHARLOO, W.; Ph.D., Prof. - Dept. of Popul. and Evol. Biol., Genet. In'st., Univ. of Utrecht, 



Transitorium 111, Padualaan 8, UTRECHT, Netherlands 

 a Effect of environmental factors and selection on the development of mutant characters. 



Drosophila melanogaster (Diptera) 

 b Induction of morphological aberrations by antimetabolites. Same species as a 

 SCHFDL, P.; Ph.D. - Abt. Zellbiol., Biozentrum der Univ., Klingelbergstr. 70, 4056 BASEL, 



Switzerland 

 a Determination of imaginal discs using Drosophila/Col EI plasmid hybrids. Drosophila 



melanogaster (Diptera) 

 SCHEIB (PFLEGER), Mrs. D.; Dr.Sci. Inst. dTimbryol. et Teratol. Exp. du C.N.R.S., 49bis Av. de la 



Belle Gabriclle, 94130 NOGENT-sur-MARNE, France 



90 



