SHERIDAN, J. D. D.Phil. — Dept. of Zool., Univ. of Minnesota, MINNEAPOLIS, Minn. 



55455, U.S.A. 

 SHIELD, J. W. Ph.D. — Zool. Dept., Univ. of W.Australia, NEDLANDS, W.Austr. 6009, 



Australia 

 SHIMADA, T. Ph.D. — Dept. of Hygiene and Prev. Med., School of Med., Niigata Univ., 



Asahimachi, NIIGATA-City, 951 Japan 

 a Cytogenetics of the development of embryos in vitro. Mus musculus, Rattus spec, 



Mesocricetus auratus (Rodentia) 

 b Electron microscopy of chromosome structures. Same species as a 

 SHIOMI, T. Dr., Prof. — Dept. of Genet., School of Med., Nagasaki Univ., 12-4, Sakamoto- 



machi, 852 NAGASAKI, Japan 

 a Radiation genetics (embryo, germ cells). Dcosophila melanogaster (Diptera) 

 SHIRAI, H. B.Sc. — Lab. of Physiol., Ocean Research Inst., Univ. of Tokyo, Minamidai 



1-15, Nakano-ku, TOKYO, 164 Japan 

 a Mechanism of spawning. Asterias amurensis, Asterina pectinifera (Asteroidea) 

 b Electron microscopic study on spawning and oocyte maturation. (Asteroidea) 

 c Biochemical pathway of 1-methyladenine formation in ovary. (Asteroidea) 

 SHOGER, R. L. Ph.D., Prof. — Dept. of Biol., Carleton Coll., NORTHFIELD, Minn. 55057, 



U.S.A. 

 a Migration of primordial germ cells from tritiated thymidine labelled heterotypic grafts of 



germinal crescent. Gallus gallus (Aves) 

 b Activation of sperm by material derived from eggs or oviduct; artificial activators; 



sperm-egg interaction. Limulus polyphemus (Xiphosura) 

 SHORO, A. A. M.Phil. — Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON 



S.E.I, England 

 a Production of limb deformities and growth retardation in the fetus with neuromuscular 



blocking agents. Rattus norvegicus (Rodentia) 

 SHOSTAK, S. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, 



U.S.A. • 



a The mechanism and control of cell movement during homeostasis and budding; role of 



collagen-like protein in the mesoglea. Hydra viridis, H. oligactis, H. pseudoligactis, H. 



piracdi, H. fusca (Hydrozoa) 

 SHUKUYA, R. M.D., Prof. — Dept. of Biochem., Nippon Med. School, 1-1-5 Sendagi, 



Bunkyo-ku, TOKYO, Japan 

 a Genetic control of hemoglobin switch during metamorphosis. Rana catesbeiana (Anura) 



(with A. KAJITA) 

 b Change of isozyme patterns during metamorphosis. Rana catesbeiana (Anura) (with A. 



KAJITA) 

 c Control of enzyme formation and activity in liver during development. Rana catesbeiana 



(Anura) (with H. NAGANO) 

 SHULOV, A. D.Sc, Prof. — Dept. of Entomol. and Venomous Anim., Hebrew Univ., 



JERUSALEM, Israel 

 a Regeneration, transplantation, and tissue implantation. Leiurus quinquestriatus (Scorpion- 

 idea) 

 SHUPE, J. L. D.V.M., Prof. — Vet Dept., Utah State Univ., LOGAN. Utah 84321, U.S.A. 

 a Congenital malformations, especially musculoskeletal and cleft palate. Bos taurus, Ovis 



aries ( Attiodactyla) 

 b Congenital anterior polar cataracts, cleft lip and cleft palate. Canis familiaris (Carnivora) 

 c Congenital multiple exostosis (hereditary osteochondromatosis). Equus caballus (Peris- 



sodacfyla) 

 d Fluorides as related to placental transfer and intra-uterine development. Ovis aries. Bos 



taurus (Attiodactyla) 

 e Congenital skeletal anomalies as related to loco plants. (Astragalus spp. and other 



Papilionaceae). Ovis aries, Bos taurus ( Artiodactyla) 

 SICHAZULIDZE, Mrs. T. A. Cand.biol.sci. — Dept. of Anim. Embryol.. Inst, of Zool., 



Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. 

 a Interaction between eye cup and embryonic tissue implanted after lens removal in embryos 



and larvae. (Amphibia) 

 SICHEL, G. M.D., Prof. — 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 



CATANIA, Italy 

 a Regeneration (origin of blastema cells). (Sabellimorpha, Nereidae, Polychaeta) 

 SIDKY, Y. A. Ph.D. — Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMONTON, 



Alta., Canada 

 SIDOROVA, Mrs. V. F. Dr.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of 



the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. 

 a Growth and regeneration of the inner organs and their regulation. Oryctolagus cuniculus 



(Lagomorpha), Rattus norvegicus, Mus musculus, Mesocricetus auratus (Rodentia) 

 SIGNORET, J. Dr.es Sci., Prof. — Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14 

 CAEN, France • 



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