b Biochemistry and ultrastructure of polarity induction, cell wall formation and cellular differ- 

 entiation in embryos. Fucus distichus, F. vesiculosus (Phaeophyceae) 

 QUEVEDO, W. C, Jr.; Ph.D., Prof. - Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R. I. 



02912, U.S.A. 

 a Genetic regulation and developmental variations of multiple forms of tyrosinase in melanocytes. 



Mus musculus (Rodentia) 

 b Developmental variations in the isozymes of lactate dehydrogenase in the skin. Same species as a 

 c Genetic regulation of melanosome synthesis in melanocytes. Same species as a 

 OUINN, P.; Ph.D. - Dept. of Biol. Sci., Univ. of Newcastle, NEWCASTLE, N.S.W. 2308, Australia 

 a Oxygen effect on growth and differentiation in utero or preimplantation embryos. Mus musculus 



(Rodentia) 

 b FertiUzability and development (metabolic and morphological criteria) of ovarian oocytes 



matured in vitro. Mus musculus (Rodentia), Homo sapiens (Primates) 

 RADHAKRISHNAN, N.; M.Sc. - Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda, 



BARODA 390002, India 

 a Tail regeneration in the adult. Mabuya carinata (Lacertilia) 

 RADICE, G. P.; B.A. - Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, CT 06520, 



U.S.A. 

 a Mechanism of epithelial cell movements during wound closure. Xenopus laevis (Anura) 

 RAE, P. M.M.; Ph.D. - Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, CT 06520, 



U.S.A. 

 a DNA and protein components of constitutive heterochromatin; nucleic acid-protein interaction; 



constitutive heterochromatin in early embryogenesis; position-effect variegation. Drosophila 



melanogaster, D. virilis (Diptera), Mus musculus (Rodentia) 

 b Synthesis and distribution of unusual deoxyribonucleotides. Gyrodinium cohnii and other spp. 



(Dinophyceac) 

 RAFF, R. A.; Ph.D., Prof. - Dept. of Zool., Indiana Univ., Jordan Hall 224, BLOOMINGTON, 



IN 47401, U.S.A. 

 RAFFERTY, K. A., Jr.; Ph.D., Prof. - Dept. of Anat., Univ. of Illinois, P. O. Box 6998, CHICAGO, 



IL 60680, U.S.A. 

 a Longevity and preservation of differentiated function in cultured cells. (Primates and other 



Mammalia) 

 RAISMAN, J. S. - Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. dc TUCUMAN, 



Argentina 

 a FertiUzation: 1. acrosome reaction; 2. oviductal factors; 3. viteUine coat. Bufo arenarum, 



Leptodactylus chaquensis (Anura) 

 RAMACHANDRAN, A. V.; M.Sc. - Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda. BARODA 



390002, India 

 a Tail regeneration in the adult. Mabuya carinata (Lacertiha) 

 RAMIREZ, O. C; M.D., Ph.D. - Dept. de Bioquim., Centro de Invest, y de Estudios Avanzados, Inst. 



Polit^cn. Nac, Apartado Postal 14-740, MEXICO 14, D.F., Mexico 

 RAMUS, J. S.; Ph.D., Assoc. Prof. - Dept. of Biol., Yale Univ., NEW HAVEN, CT 06520, U.S.A. 

 a Biogenesis of cell surface polysaccharides in a unicellular organism. Porphyridium aerugineum 



(Rhodophyccae) 

 RANGA RAO, K.; Ph.D., Assoc. Prof. - Gamma Coll., Fac. of Biol, Univ. of W. Florida, 



PENSACOLA, FL32504, U.S.A. 

 a The responses of chromatophores of zoea, megalopa and adult to purified chromatophorotropins. 



Uca pugilator (Dccapoda, Crustacea) 

 b Control of pigmentation in regenerating appendages. Uca pugilator, Cambarellus shufeldti 



(Decapoda, Crustacea) 

 c Comparative study of the effects of various ecdysones on regeneration of appendages. Uca 



pugilator, U. minax, Chbanarius vittatus (Decapoda, Crustacea) 

 RAO, K. v.; Ph.D. - Dept. of Zool., Univ. of Delhi, DELHI 110007, India 

 a The role of sulfhydryl groups in primary organizer action studied by grafting and culturing in 



vitro pieces of early blastoderms. Gallus domesticus (Aves) 

 b Role of surface properties of blastoderm cells in morphogenetic movements; isoelectrofocusing of 



Uving cells to determine surface cliarge. Same species as a 

 c Nucleic acid synthesis in the early embryo. Planorbis exustus, Lymnaea stagnalis (Gastropoda) 

 RAPPAPORT, R., Jr.; Ph.D., Prof. - Dept. of Biol. Sci., Union Coll., SCHENECTADY, NY 12308, 



U.S.A. 

 a Experiments on the mechanisms of cell division. Echinarachnius parma, Strongylocentrotus 



purpuratus (Echinoidea) 

 RAPPORT, Ms. E. W.; Pli.D. - Ramsay Wright Zool. Labs., Dept. of Zool., Univ. of Toronto, 25 



Harbord St., TORONTO, M5S lAl, Ont., Canada 

 a Morphological abnormalities in the eversion of imaginal structures caused by feeding glucosamine 



or hydroxyproline: genetic, cellular, and biochemical differences in the responses of susceptible 



and non-susceptible strains. Drosopiiila melanogaster (Diptera) 

 RASCH (MYRB1;RG), Mrs. E. M.; Pli.D., Prof. - Dept. of Biol., Marquette Univ., 530 N. 15th St., 



MILWAUKEE, Wl 53233, U.S.A. 

 a Atypical nucleoprotein synthesis during larval development. Sciara coprophila (Diptera) 

 b Cytochemistry of puffs in giant chromosomes. Same species as a 

 c Triploidy in a gynogcnetic fish. Poccilia formosa (Teleostei) 

 RASWEILER, J. J., IV; Ph.D. - Dept. of Anat., Coll. of Phys. and Surg., Columbia Univ., 630 W. 



168th St., NEW YORK, NY 10032, U.S.A. 



72 



