RAEKALLIO, J. M.D., Prof. — Dept. of Forensic Med., Univ. of Turku, Kiinamyllynkatu 



10, 20520 TURKU 52, Finland 

 a Biochemical characterization of enzymes appearing in early wound healing. Rattus spec, 



Cavia spec. (Rodentia) (with P.-L. MAKINEN) 

 b Histochemistry of bone regeneration (fracture healing). Rattus spec. Cavia spec. (Roden- 

 tia (with P.-L. MAKINEN) 

 c Enzyme histochemistry of skin transplants (allografts and homografts). Rattus spec, 



Cavia spec. (Rodentia) (with P.-L. MAKINEN) 

 d Biochemistry of vascular response in experimental wound healing. Rattus spec, Cavia 



spec (Rodentia) (with P.-L. MAKINEN) 

 RAFFERTY, K. A., Jr. Ph.D., Prof. — Dept. of Anat., Univ. of Illinois, 1853 W. Polk St., 



P.O.Box 6998, CHICAGO, 111. 60680, U.S.A. 

 a In vitro longevity of fetal versus adult cells; longevity compared to life expectancy 



of donor. (Primates and other Mammalia) 

 RAGOZINA, Mrs. M. N. Dr.biol.sci. — Inst, of Anim. Evolut. Morphol. and Ecol., Acad. 



of Sci. of the U.S.S.R., Lenin Ave. 33, MOSCOW W-71, U.S.S.R. 

 a Embryogenesis. Testudo graeca (Chelonia) 

 RAISMAN, J. S. — Inst, de Biol., Univ. Nac de Tucuman, Chacabuco 461, S. M. de TU- 



CUMAN, Argentina 

 a Fertilization: 1. acrosome reaction; 2. oviducal factors; 3. protein synthesis. Bufo arenarum, 



Leptodactylus chaquensis (Anura) 

 RAJTOVA, Miss V. M.V.Dr. — Anat. Inst., Vet.-Med. Fak., Komenskeho 71, KOSICE, 



Czechoslovakia 

 a Ossifikation des Skeletts, insbesondere des Primordialkraniums. Cavia porcellus (Roden- 

 tia) 

 b Morphogenesis of the chondrocranium. Cavia porcellus, Mesocricetus aucatus (Rodentia) 

 c Morphogenesis of carpus and tarsus. Ovis aries, Capra hhcus (Artiodactyla) 

 d Skeletal development. Same species as c 

 RALIS, Z. M.D., F.Cz.C.S. — Dept. of Child Health, Congen. Anomalies Res. Unit, 



Children's Hosp., Fulwood Rd., SHEFFIELD S10 3BR, England 

 a Normal and pathological development of limbs, particularly paralytic hindlimb deformities 



associated with spina bifida. Rattus norvegicus (Rodentia) , Homo sapiens (Primates) 

 RAMACHANDRAN, A. V. M.Sc — Dept. of Zool., Fac of Sci., M.S. Univ. of Baroda, 



BARODA-2, India 

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

 RAMSEY, Miss E. M. M.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 



University Parkway, BALTIMORE, Md. 21210, U.S.A. 

 a Placentation; study of placental structure, development and vasculature. Macaca mulatta, 



Homo sapiens (Primates) 

 b Determinations of blood, amniotic and intervillous space pressures throughout pregnancy. 



Macaca mulatta (Primates) 

 c Anatomical and radiological studies of circulation in the maternal placenta. Macaca 



mulatta. Homo sapiens (Primates) (with M. W. DONNER and H. R. MISENHEIMER) 

 RAMUS, J. S. Ph.D. — Dept. of Biol., Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. 

 RANGA RAO, K. Ph.D. — Dept. of Biol., Tulane Univ., NEW ORLEANS, La. 70118, 



U.S.A. 

 a The responses of chromatophores of zoea, megalopa and adult to purified chromato- 



phorotropins. Ilea pugilatot (Decapoda, Crustacea) 

 b A study on the control of pigmentation in regenerating appendages. Ilea pugilatoc, 



Cambarellus shufeldti (Decapoda, Crustacea) 

 RANZI, S. Ph.D., Prof. — Lab. di Zool., Univ. di Milano, Via Celoria 10, 20133 MILANO, 



Italy • 



RANZOLI, F. Dr., Prof. — 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 



CATANIA, Italy 

 a Gametogenesis and sexuality. Electra posidoniae (Ctenostomata, Bryozoa) 

 RAO, K. V. Ph.D. — Dept. of Zool., Univ. of Delhi, DELHI-7, India 

 a Study of the role of sulfhydryl groups in the primary organizer action by grafting and 



culturing in vitro pieces of early blastoderms. Gallus domesticus (Aves) 

 b Role of the surface properties of blastoderm cells in morphogenetic movements; isoelectro- 



focussing of living cells to determine surface charge. Same species as a 

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



(Pulmonata, Gastropoda) 

 RAPOLA, M. H. J. M.D. — Children's Hosp., Univ. of Helsinki, 11 Stenback St., 00290 



HELSINKI 29, Finland • 



a Teratology. Homo sapiens (Primates) 



b Kidney differentiation; organ culture, electron microscopy. Mus musculus (Rodentia) 

 RAPPAPORT, R., Jr. Ph.D., Prof. — Dept. of Biol. Sci., Union College, SCHENECTADY, 



N.Y. 12308, U.S.A. 

 a Comparative micrurgical studies on cytokinesis: extending present methods to a variety 



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