ROBERTSON, G. G. B.A., B.Sc, Ph.D., Prof. — Div. of Anat., Med. 



Units, Fac. of Biol. Sci., Univ. of Tennessee, MEMPHIS 3, Tenn., 



U.S.A. 

 a. Virus-induced abnormalities in embryos. Gallus domesticus (Aves) 

 ROCKSTEIN, M. A.B., M.A., Ph.D. — New York Univ. Med. Center, 



550 First Ave., NEW YORK 16, N.Y., U.S.A. 



a. Physiological basis of aging, growth and metamorphosis. Musca domes- 

 tica (Diptera) 



b. Metachemogenesis — post-emergence biochemical maturation. (Holo- 

 metabola, Insecta) 



c. Hereditary vs. environmental factors in longevity. (Diptera; Hyme- 

 noptera) 



RODRIGUEZ (GALINDO), Mrs. M. — Lab. d'Hormonol. et de Cytol. 



Exper., Ecole pratique des Hautes Etudes, Hopital Broca, 1 1 1 Rue L. M. 



Nordmann, PARIS VIII, France 

 ROGUSKI, H. F. M.So — Dept. of Exper. Zool., Polish Acad, of Sci., 



ul. Kopernika 7, KRAK6W, Poland 

 a. Properties of regeneration blastemal cells. Ambystoma mexicanum, Sala- 



mandra salamandra (Urodela) (in collaboration with S. SKOWRON) 

 ROLLHAUSER, H. Dr.med., Prof. — Anat. Inst., Friedrichstr. 24, GIES- 



SEN, Deutsche Bundesrepublik 



(no embryological work in proqress) 

 ROLLHAUSER (TER HORST), Mrs. J. O. B. Dr.rer.nat. — Anat. Inst., 



Friedrichstr. 24, GIESSEN, Deutsche Bundesrepublik 



(no embryological work in progress) 

 ROMANOFF, A. L. B.S., M.S., Ph.D., Prof. (Emer.) — Lab. of Chem. 



Embryol., Cornell Univ., c/o Rice Hall 105, ITHACA, N.Y., U.S.A. 

 a. Physiological embryology. (Aves) 

 ROMANOVSKY, A. RNDr., C.Sc. — Dept. of Gener. and Exper. Zool., 



Zool. Inst, of Charles Univ., Vinicna 7, PRAHA 2, Czechoslovakia 



a. Immunoembryology of hybridization and parabiosis. (Amphibia) 



b. Nucleus and cytoplasm in embryonic development (hybridization, hetero- 

 ploidy). (Urodela) 



ROMIJN, C. Dr., Prof. — Lab. for Veter. Physiol., State Univ., Alexander 

 Numankade 93, UTRECHT, Netherlands 



a. Investigations on the respiratory metabolism and heat regulation in the 

 embryo. Gallus domesticus (Aves) 



b. The role of the allantoic circulation in the heat elimination of the embryo. 

 Gallus domesticus (Aves) 



c. Direct and indirect calorimetry of the growing embryo. Gallus domesticus 

 (Aves) 



RONCORONI, G. Dott.Med. — Cattedra di Istol. ed Embriol. gener., Fac. 

 di Med. e Chir. dell'Univ. di Milano, Via Ponzio 7, MILANO, Italia 



a. Studies of embryonic lipids with freeze-drying and carbowax-embedding. 

 (Mammalia) 



b. Studies of embryonic glycogen with electron-microscopy. (Mammalia) 

 ROOFE, P. G. Ph.D., Prof. — Dept. of Anat., Med. School, Univ. of Kan- 

 sas, LAWRENCE, Kansas, U.S.A. 



a. Cytochemical and microchemical study of the developing nervous system 

 and its relationship to developing behaviour patterns. Ambystoma macu- 

 latum (Urodela) 



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