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. 



pirardi, H. [usca (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) 



(in collaboration with A. KAJITA and K. HAMADA) 

 b Change of isozyme patterns during metamorphosis. Rana catesbeiana (Anura) (in col- 

 laboration with A. KAJITA) 

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



(Anura) 

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



JERUSALEM, Israel 

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



U,S.A. 

 a Congenital malformations, especially musculo-skeletal and cleft palate. Bos taurus, Ovis 



aries (Artiodactyla) 

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

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



sodactyla) 

 SHUTE, C. C. D. M.D. — Anat. School, Univ. of Cambridge, Downing St., CAMBRIDGE 



CB2 3DY, England 

 a Segmentation of vertebrae; development of arcualia and centra. (Vertebrata) 

 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 

 a Comparison between the development of the immune reaction of adult hibernating animals 



and newborns. Citellus tridecimlineatus (Rodentia) 

 h The possible inductive role of the thymus in immune reaction development. Citellus tri- 

 decimlineatus (Rodentia) 

 SIDOROVA, Mrs. V. F. Dr.biol.sci. — Inst, of Exper. Biol., Acad, of Med. Sci. of the 



U.S.S.R., Baltiyskaya St. 8, MOSCOW A-315, U.S.S.R. 

 SIGNORET, J. Dr.es Sci., Prof. — Biol, et Ecol., Univ. de Caen, 14 CAEN, France • 



a Study of nuclear differentiation and specific activities by means of nuclear transplantation. 



Ambystoma mexicanum (Urodela) 

 h Study of chromosome changes during cellular differentiation. Ambystoma mexicanum 



(Urodela) 

 SIGOT. M. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49 bis Av. de la 



Belle Gabrielle, 94 NOGENT-sur-MARNE, France 



— Lab. d'Embryol. Exper. du Coll. de France, 11 Place M. Berthelot, PARIS Ve, 

 France 



a Morphogenese du tube digestif en culture in vitro. Callus spec. (Aves) 

 SIGOT (LUIZARD), Mrs. M. F. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du 

 C.N.R.S.. 49bis Av. de la Belle Gabrielle. 94 NOGENT-sur-MARNE, France 



— Lab. d'Embryol. Exper. du Coll. de France, 1 1 Place M. Berthelot, PARIS Ve, France 

 a Culture de tissus cancereux sur des organes embryonnaires de poulet explantes in vitro. 



Mus musculus, Rattus norvegicus. Homo sapiens (Mammalia) 

 SILfiN. L. K. P. Fil.Dr., Prof. — Zool. Inst., Univ. of Stockholm, 70A Radmansgatan, 



Box 6801, S-113 86 STOCKHOLM, Sweden 

 a Embryology. (Bryozoa) 

 SILVA MURTA, Mrs. I. M. da B.Sc. — Dept. de Biol. Geral, Inst, de Cienc. Biol, da 



U.F.M.G., Rua Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE, M.G., Brazil 

 a Embryology of nephridia. Peripatus acacioi (Onychophora) 



SIMKISS, K. Ph.D., Prof. — Dept. of Zool., Queen Mary Coll., LONDON E.l, England 

 a Respiratory acidosis in embryos 

 SIMON, M. I. Ph.D. — Dept. of Biol., Univ. of California, San Diego. P.O. Box 109, 



LA JOLLA. Calif. 92037, U.S.A. 

 a Mechanism of molecular assembly in development of subcellular organelles 

 SIMONS, J. A. Ph.D. — Dept. of Biol.. Coll. of William and Mary, WILLIAMSBURG, 



Va. 23185, U.S.A. 

 a Induction of d-aminolevulinate synthetase and the regulation of heme biosynthesis during 



development. Callus domesticus (Aves) 

 SIMPSON, S. B. Ph.D. — Dept. of Anat., Developm. Biol. Center, Case Western Reserve 



Univ., 2109 Adelbert Rd., CLEVELAND, Ohio 44106, U.S.A. 

 a Tail regeneration. Triturus vihdescens (Urodela), Anolis carolinensis (Lacertilia) 

 h Spinal cord regeneration. Anolis carolinensis (Lacertilia) 

 c In vitro differentiation of promuscle cells from tail regenerate. Anolis carolinensis 



(Lacertilia) 



160 



