SORENSEN, R. A.; Ph.D. - Dept. of Biol. Sci., DePaul Univ., 1036 W. Belden Ave., CHICAGO, 



IL 60614, U.S.A. 

 a Oocyte growth, differentiation, and maturation; in vitro preiinplantation development. Mus 



musculus (Rodentia) 

 b Protein synthesis in early embryo. Oryzias latipcs (Teleostei) 

 SOUPART, P.; M.D., Ph.D., Assoc. Prof. - Dept. of Obstet. and Gynecol., Sch. of Med., Vanderbilt 



Univ., NASHVILLE, TN 37232, U.S.A. 

 a Cytogenetics of preimplantation stages obtained by culture methods. Homo sapiens (Primates) 

 b Freeze preservation of preimplantation stages. Homo sapiens and others (Mammalia) 

 c Cryobiology of semen. Same species as a 



d Malignancy in germ cell - cancer cell hybrids. Mus musculus (Rodentia) 

 e Manufacture and culture of embryos by virus-assisted fusion of oocytes. Same species as d 

 SOUZA, Miss M. L.; - Dept. de Morfol., Fac. de Med. Vet. de Jaboticabal, 14870 JABOTICABAL, 



S.P., Brazil 

 SPAZI ANI, E. ; Ph.D., Prof. - Dept. of Zool., Univ. of Iowa, lOWA-City, lA 52242, U.S.A. 

 a Mechanism of ovarian and testicular hormone action on growth and development of reproductive 



tissues: uterus, seminal vesicles, prostate. Rattus norvegicus (Rodentia) 

 b Hormonal control of melanocyte differentiation and pigment synthesis. Same species as a 

 c Biosynthesis of growth and differentiating hormone (ecdysone) by the Y-organ; variations 



according to molt cycle. Cancer spec. (Decapoda, Crustacea) 

 SPERELAKIS, N.; Ph.D., Prof. - Dept. of Physiol., Sch. of Med., Univ. of Virginia, CHARLOTTES- 

 VILLE, VA 22903, U.S. A. 

 a Membrane properties of myocardial cells and skeletal muscle during embryonic development. 



Gallus domesticus (Aves), Rattus spec. (Rodentia) 

 b Ellectrophysiology of heart cells and whole hearts cultured in vitro. Same species as a 

 c Control of membrane properties, e.g., effect of niRNA. Same species as a 

 d Ultrastructure of cardiac and skeletal muscle at different stages of embryonic and postnatal 



development. Same species as a, and Cavia porcellus, Mus musculus (Rodentia) 

 SPERRY, R. W.; Ph.D. - Div. of Biol., Calif. Inst, of Technol., PASADENA, CA 91 109, U.S.A. 

 SPIEGEL, Mrs. E. SCLUFER; Ph.D. - Dept. of Biol. Sci., Dartmouth Coll., HANOVER, NH 03755, 



U.S.A. 

 a Cell adhesion. Arbacia punctulata, Lytechinus pictus (Ecliinoidea) (with M. SPII^GEL) 

 SPIEGEL, M.; Ph.D., Prof. - Dept. of Biol. Sci., Dartmouth Coll., HANOVER, NH 03755, U.S.A. 

 SPIEGELMAN, M.; Ph.D. - Dept. of Anat., Med. CoU., CorneU Univ., 1300 York Ave., NEW YORK,, 



NY 10021, U.S.A. 

 a Fine structure of normal and mutant embryos. Mus musculus (Rodentia) 

 b Cell surface structures in early embryos. Same species as a 

 SPIKER, S.; Ph.D. - Biol. Dept., American Univ. of Beirut, BEIRUT, Lebanon 

 SPIRA, A. W.; Ph.D. -- Div. of MorphoL Sci., Health Sci. Centre, Univ. of Calgary, CALGARY, Alta. 



T2N 1N4, Canada 

 SPIROFF, B. E. N.; Ph.D. - Dept. of BioL, Loyola Univ., 6525 N. Sheridan Rd., CHICAGO, 



IL 60626, U.S.A. 

 a Effects of thalidomide on development. (Aves) w 



b Function and structure of the epiphysis. (Aves) f 



c Lymphocytes and epiphysis. (Aves) 'i 



SPITZER,N.C.;Ph.D. - Dept. of Biol., B-022, Univ. of Calif., San Diego, CA 92093, U.S.A. 

 a Cell death in development: the electrical excitability of Rohon-Beard neurons prior to their 



regression at stage 50; hormonal dependence of physiological and anatomical changes beginning 



at stage 50. Xenopus laevis (Anura) 

 b Sensitivity to neurotransmitters of primary sensory (Rohan-Beard), and motor neurons in vivo; 



and of neurons in vitro. Same species as a . 

 SPRATT, N. T., Jr. t; Ph.D., Prof. - Dept. of Zool., Univ. of Minnesota, MINNEAPOLIS, MN 55455, 



U.S.A. 

 SPYKER, J. M.; Ph.D. - Dept. of Pharmacol., Univ. of Arkansas for Med. Sci., 4301 West Markham, 



LITTLE ROCK, AR 72201, U.S.A. 

 a Subtle and delayed effects of exposure to low-level chemicals during development. Callithrix 



jacchus (Primates), (Rodentia) 

 b Brain development and behavior under normal and abnormal conditions. Same species as a 

 SRIVASTAVA, A. K.; Ph.D. - Zool. Dept., Fac. of Sci., Univ. of Gorakhpur, GORAKHPUR 273001, 



India 

 SRIVASTAVA, G. K.; M.Sc. - Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD 



211002, India 

 a Some enzymes (lipase, proteolytic, treiiaiase, phosphatases, and aminotransferases) and meta- ; 



bolites (proteins, total free amino acids, lipids, nucleic acids and carbohydrates) in some tissues | 



(intestine, malpighian tubules and wing buds) during larval-pupal development. Piiilosamia ricini, , 



Antheraea mylitta (Lepidoptera) | 



SRIVASTAVA, H. C.;M.S., Prof. - Dept. of Anat., Med. Coll., BARODA 390001, India | 



a Palate closure and jnoduction of cleft palate by physostigmine. Rattus spec. (Rodentia) 

 b Development of the scjuamous part of tlie occipital bone. Homo sapiens (Primates) 

 STAAL, G. B.; Dr., Ir. - Zoecon Corp., 975 California Ave., PALO ALTO, CA 94304, U.S.A. , 



a Inliuence of insect hormones and synthetic analogs on metamorphosis, reproduction, and | 



embryogenesis. (Orthoptera; Homoptera; Coleoptera; Lepidoptera; Diptera) 



84 



