ROCKSTEIN. M. Ph.D.. Prof. — Dept. of Physiol.. Univ. of Miami, P.O. Box 875. Bis- 



cayne Annex, MIAMI, Fla. 33152, U.S.A. 

 a Physiological basis of aging, growth and metamorphosis. Musca domestica (Dipfera) 

 h Metachemogenesis — post emergence biochemical maturation. ( Holometabola, Insecfa) 

 c Hereditary vs. environmental factors in longevity. (Dipfera, Hymenopfera) 

 d Effects of X-irradiation on development, aging and longevity. Musca domestica (Dipteca) 

 RODRIGUES CORREIA, Mrs. M. J. M.D. — Inst, de Histol. e Embriol.. Fac. de Med., 



Av. Prof. Egas Moniz, LISBOA 4. Portugal 

 a Ultrastructure of the embryonic mesonephros. Gallus domesticus (Aves) 

 h Ultrastructural cytogenesis of the embryonic myocardium. Gallus domesticus (Aves) 

 c Action of ionizing radiations upon the embryonated egg. Gallus domesticus (Aves) (in 



collaboration with M. J. XAVIER MORATO) 

 ROEDER, R. G. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W. Uni- 

 versity Parkway. BALTIMORE. Md. 21210. U.S.A. 

 a Biochemical studies of early development. Xenopus laevis (Anura) (in collaboration with 



D. D. BROWN) 

 ROELS, F. M.D. — Lab. of Anat.. Univ. of Gent, Ledeganckstr. 35. GENT, Belgium 

 ROGERS, K. T. Ph.D. — Dept. of Anat., School of Med.. Univ. of California, SAN 



FRANCISCO. Calif. 94122, U.S.A. • 



a Development of the Na+ + K+-activated ATPase system in the retina and the ciliary 



body. Gallus domesticus (Aves), Oryctolagus cuniculus (Lagomorpha) 

 ROGUEDA (VIGNAU). Mrs. J. Dr.Biol.anim. — Lab. de Zool. Experim., Fac. des Sci. 



de Bordeaux, Av. des Facultes, 33 TALENCE, France 

 a Recherches experimentales sur la morphogenese embryonnaire de la tete. Carausius spec. 



(Orthoptera) 

 ROGULSKA. Miss T. Ph. D. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Kra- 



kowskie Przedmiescie 26/28, WARSZAWA 64, Poland 

 a Origin and fate of primordial germ cells. Gallus domesticus (Aves), Mus musculus 



(Rodentia) 

 h Regulative capacities of blastoderm. Gallus domesticus. Anas platyrhynchos domestica 



(Aves) 

 ROKYTA, R. MUDr. — Inst. Pathophysiol., Med. Fac. Charles Univ.. Lidicka 1, PLZE55, 



Czechoslovakia 

 a Development of different parts of medial geniculate body (GM), and its projection to 



the homolateral and contralateral cortex. Pelis domestica (Carnivora), Rattus norvegicus 



(Rodentia), Oryctolagus cuniculus (Lagomorpha) 

 h Interhemispherical connections between subcortical auditory centres, especially between 



medial geniculate bodies in development. Felis domestica (Carnivora), Rattus norvegicus 



(Rodentia), Oryctolagus cuniculus (Lagomorpha) 

 ROLLHAUSER. H. Eh-.med.. Prof. — Anat. Inst, der Univ. Munster. Vesaliusweg 2-4. 



44 MONSTER/ Wesf., W.Germany 

 a Pre- and postnatal development of phenol red excreting capacity of the proximal renal 



tubules in relation to ultrastructural tubule cell differentiation (vital staining, freeze-drying 



method, electron microscopy). Mus rattus (Rodentia) 

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



Vesaliusweg 2-4, 44 MUNSTER/ Westf., W.Germany 



(no embryological work in progress) 

 ROLLINS, E. A. Ph.D. — Dept. of Biol.. State Univ. of New York at Albany, ALBANY, 



N.Y. 12203, U.S.A. 

 a Control of tissue-specific RNA and protein synthesis in the early embryo. Rana pipiens 



(Anura) 

 b Characterization of chromatin. DNA. RNA and protein at specific developmental stages. 



employing cell or organ culture and nuclear isolation. Rana pipiens (Anura) 

 ROMANOFF, A. L. Ph.D.. Prof. (Emer.) — Lab. of Chem. Embryol.. Cornell Univ., c/o 



105 Rice Hall. ITHACA. N.Y. 14850, U.S.A. 

 a Chemical embryology. (Aves) 

 h Developmental pathology. (Aves) 

 ROMANOVA. Mrs. L. K. Cand.med.sci. — Inst, of Exper. Biol., Acad, of Med. Sci. of the 



U.S.S.R.. Baltiyskaya St. 8, MOSCOW A-315. U.S.S.R. 

 ROMANOVSK?, A. RNDr., C.Sc, Prof. — Dept. of Exper. Zool., Charles Univ., Vinicna 



7. PRAHA 2. Czechoslovakia 

 a Proteins and antigens in early development. (Amphibia) (in collaboration with J. MACH A. 



J. PALECEK and A. MACELA) 

 b Transplantation of nuclei in relation to the development of antigenic characteristics. 



(Amphibia) (in collaboration with F. SLADECEK) 

 ROMIJN. C Dr., Prof. — Lab. of Veter. Physiol., State Univ. of Utrecht, Alex. Numan- 



kade 93, UTRECHT, Netherlands 

 a Physiology of respiration in embryos under influence of environmental conditions. Gallus 



domesticus (Aves) (in collaboration with Miss W. LOKHORST) 



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