ROTSHENKER, S.; M.D. - Dept. of Anat. and Embryol., Hebrew Univ. - Hadassah Med. Sch., 



P.O.Box 1172, JERUSALEM 91000, Israel 

 a Formation, maintenance and replacement of synapses, specifically mechanisms underlying 



induction of sprouting of intact motor neurons and synapse formation. Rana pipiens (Anura) 

 ROTUNDO, R. L.; Ph.D. - Dept. of Embryol., Carnegie Inst, of Washington, 115 W. University Park- 

 way, BALTIMORE, MD 21210, USA 

 a Synthesis, secretion, and appearance of membrane bound forms of acetylcholinesterase in cultured 



muscle cells; role of innervation in appearance and distribution of molecular forms of this enzyme. 



GaUus domesticus (Aves) 

 ROY, Ms. D. - Dept. of Zool., Sch. of Life Sci., North Eastern HiU Univ., SHILLONG 793003, India 

 a Ecological and developmental biology. Rana limnocharis (Anura) 

 RUBEN, L. N.; Ph.D., Prof. - Biol. Dept., Reed College, PORTLAND, OR 97202, USA 

 a Development and evolution of immune responses with special emphasis on cell cooperation 



(immunocytoadhcrence, hapten-carrier immunization, haemagglutination). Triturus viridescens 



(Urodela), Xenopus laevis, Rana pipiens (Anura) 

 RUDDLE, F. H.; Ph.D., Prof. - Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, CT 



06520, USA 

 RUDERMAN, Ms. J. V.; Ph.D. - Dept. of Anat., Harvard Med. School, 25 Shattuck St., BOSTON, 



MA 02115, USA 

 a Synthesis and utilisation of messenger RNA during oogenesis. Arbacia punctulata, Strongylo- 



centrotus purpuratus, Lytechinus pictus (Echinoidea) 

 b Segregation of maternal messenger RNA and proteins during cleavage, and the onset of differential 



gene expression in early blastomeres. Spisula solidissima (LamelUbranchia) 

 RUDOLPH, A. M.; M.D., Prof. - Cardiovasc. Res. Inst., Univ. of Cahf., 1403 HSE, SAN FRANCISCO, 



CA 94143, USA 

 a Physiology of fetal circulation: developmental changes; responses to stress; effects of pharma- 

 cologic agents. (MammaUa) 

 RUGH, R.; Ph.D., Prof. (Emer.) - Bur. of Radiol. Health, Div. of Biol. Effects, F.D.A , 5600 Fisher's 



Lane HFX-120, ROCKVILLE, MD 20857, USA 

 a Microwave radiation effects on the embryo and fetus. (Mammaha) 

 b Risk to the embryo and fetus of pelvic X-irradiation. (MammaUa) 



RUNNER, M. N.; Ph.D., Prof. - Inst, of Devi. BioL, Univ. of Colorado, BOULDER, CO 80302, USA 

 RUSCH, H. P.; M.D., Prof. - McArdle Lab. for Cane. Res., Univ. of Wisconsin, 450 N. Randall Ave., 



MADISON, WI 53706, USA 

 a Acidic nucleoproteins in the control of growth and differentiation. Physarum polycephalum 



(Myxomycetes) 

 RUTH, R. F.; Ph.D. - Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMONTON, Alta. T6G 2E9, 



Canada 

 a Developmental immunology. Coturnix c. japonica (Aves) 

 b Ontogeny of histoincompatibility. Same species as a 



SACHS, H. G.; Ph.D. - Dept. of Anat., Univ. of IlUnois, P.O. Box 6998, CHICAGO, IL 60680, USA 

 a Development of the normal heart and a genetic cardiomyopathy (biochemistry, calcium dynamics 



of intact cell and subcellular fractions, quantitative electron microscopy, electrophysiology). 



Callus domesticus (Aves), Mesocricetus auratus (Rodentia) 

 SACHS, L.; Prof. - Dept. of Genet., Weizmann Inst, of Sci., P.O. Box 26, REHOVOT, Israel 

 SACHS, T.; Dr. - Dept. of Bot., Hebrew Univ., JERUSALEM, Israel 



a Experiments on the exact course of differentiation of vessel pattern. Raphanus sativus (Cruciferae) 

 b Control of flowering (apex differentiation): plant size, leaf number, distance from root and other 



factors. Various spp. (Angiospermae) 

 SACK,W.O.;D.V.M., Ph.D., Dr. med. vet.. Prof. - Dept. of Anat., New York State Coll. of Vet. Med., 



Cornell Univ., ITHACA, NY 14853, USA 

 a EstabUshing a comprehensive cmbryological slide collection of domestic and laboratory animals. 



Canis familiaris, FeUs catus. Bos taurus, Ovis aries, Rattus rattus, Mus musculus, Cavia porcellus 



(Mammalia) 

 b Developmental morphology: nerve distribution. Equus caballus (Perissodactyla) 

 SADANA, G. L.; Ph.D. - Dept. of Zool., Punjab Agric. Univ., LUDHIANA, India 

 a I'jiibryonic development. Pardosa bhatnagari (Araneida, Arachnida) 

 b Postembryonic development of genital organs. Lycosa chaperi (Araneida, Arachnida) 

 SADLER, T. W.; Ph.D. - Dept. of Anat., Univ. of Virginia, CHARLOTTESVILLE, VA 22901, USA 

 a Mechanisms involved in neural tube closure and abnormalities of closure such as spina bifida and 



exencephaly. Mus musculus (Rodentia) 

 b Effects of hypcrinsuhnism and hyperglycemia on organogenesis. Same species as a 

 SAGAWA, Y.; Ph.D., Prof. - Harold L. Lyon Arboretum and Horticult. Dept., Univ. of Hawaii, 



HONOLULU, HI 96822, USA 

 a Developmental studies of ovule formation. (Orchidaceae) 



b Developmental studies of apical meristem explants. (Orchidaceae and other tropical plants) 

 c Studies of in vivo growth of pollen tubes. Same species as a 

 SAHU, A. K. Dept. of Zool., Sch. of Life Sci., North Eastern Hill Univ., SHILLONG 793003, 



India 

 a Population dynamics of larvae. Bufo melanostictus, Rana limnocharis, R. cyanophlyctis (Anura) 

 b Biochemical studies in relation to developmental stages. Rana alticola (Anura) 



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