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 



Rice Hall 105, 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. 

 a Regeneration of organs. (Vertebrata) 

 h Mechanisms of regeneration. (Vertebrata) 

 ROMANO VSKY, A. RNDr. — Dept. of Gener. and Exper. Zool., Fac. of Sci.. Charles Univ., 



Vinicna 7, PRAHA 2, Czechoslovakia 

 a Intraembryonic milieu and its influence on cytodifferentiation. (Amphibia) 

 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.. Fac. of Veter. Med., State Univ. of 



Utrecht, Alex. Numankade 93, UTRECHT, Netherlands 

 ROOFE, P. G. Ph.D., Prof . — Dept. of Anat. and Zool., Univ. of Kansas, 102a Haworth 



Hall, LAWRENCE. Kansas 66045. U.S.A. 

 ROOSEN (RUNGE). E. C. M.D.. Prof. — Dept. of Biol. Struct.. School of Med.. Univ. of 



Washington. SEATTLE, Wash. 98105, U.S.A. 

 ROSATE, A. — 1st. di Anat. Umana Normale della Univ., Fac. Med. e Chir., Corso M. 



D'Azeglio 52. 10126 TORINO, Italia 

 a Studies on the structure and vascularization of the yolk sac. Gallus domesticus (Aves) 

 • ROSE. S. M. Ph.D., Prof. — Lab. of Developm. Biol.. Dept. of Anat., Tulane Univ.. F. 



Edward Hebert Center, BELLE CHASSE. La. 70037. U.S.A. 

 ROSELER. P.-F. Dr. — Stadtisches Museum fur Naturkunde. Gerberau 32, 78 FREIBURG i. 



Br.. Deutsche Bundesrepublik 

 a Entstehung der drei Formen in Hummelstaat. Bombus agrorum, B. pratorum, B. terrestris 



and other spp. (Hymenoptera) 

 ROSENBERG, A. J. Prof. — Lab. d'Anat. comp.. Fac. des Sci.. 7 Quai St. Bernard. 75- 



PARIS Ve. France 

 a Developmental biochemistry. 

 ROSENBERG. Miss M. M.D. — Dept. of Biol., Yale Univ., NEW HAVEN, Conn. 06520, 



U.S.A. 

 a Ontogeny of LDH isozyme patterns (cytogenetic aspects). Lepus cuniculus (Lagomorpha) 

 ROSI, Miss G. Dott.Sci.Biol. — 1st. di Biol, gener., Fac. di Med., Via del Giochetto. PERU- 

 GIA. Italia 

 a Rapporti tra rigenerazione e neurosecrezione. Dugesia lugubris (Turbellacia), Allolo- 



bophora caliginosa (Oligochaeta) 

 h Influenza di alcune sostanze simpaticomimetiche sulla rigenerazione. Dugesia lugubris 



(Turbellacia). Allolobophora caliginosa (Oligochaeta) 

 ROSS, G. T. B.A. — Dept. of Zool., Coll. of Sci., Univ. of Western Ontario. LONDON. 



Ont.. Canada 

 a Effect of actinomycin D on developmental processes. (Teleostei) 

 ROSSI. A. Dr. — 1st. di Anat. Comp. "Battista Grassi". Fac. di Sci.. Univ. di Roma. Via 



A. Borelli 50, ROMA, Italia 

 a Determination in the neural plate. Rana esculenta, Bufo bufo (Anura) 

 ROSSINI, Miss M. C. Dr.nat.sci. — 1st. di Anat. comp., Univ. di Bologna, Via Belmeloro 8, 



BOLOGNA (103), Italia 

 • ROSTAND, J. — 29 Rue Pradier, VILLE D'AVRAY (S. & O.), France 

 a Parthenogenese et gynogenese; regulation chromosomique par le froid. (Amphibia) 

 b Mutations (polydactylie, ectrodactylie, etc.) et anomalies provoquees par le milieu exte- 



rieur (principalement "Anomalie P"). (Amphibia) 

 c Action protectrice de la glycerine a I'egard de la congelation des cellules spermatiques. 



(Amphibia) 

 ROTA (ROND053), Mrs. T. — Dept. of Genet., Albert Einstein Coll. of Med., Yeshiva Univ.. 



Eastchester Rd. and Morris Park Ave., BRONX, N.Y. 10461, U.S.A. 

 a Disaggregation and reaggregation of normal and mutant (phocomelia) embryo limbs (in 



vitro techniques using 12-14 day old embryo limbs). Mus musculus (Rodentia) 

 ROTT, Mrs. N. N. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., 



Vavilov St. 26, MOSCOW V-133. U.S.S.R. 

 a Nucleo-cytoplasmic interrelations in early development (changes of ploidy. hybridization, 

 differential damage of nuclei and cytoplasm). Misgurnus fossilis, Carassius auratus 

 (Teleostei) 

 ROUGH. R. — Lab. Souterrain du C.N.R.S., 09 MOULIS (Ariege). France 

 a Oogenesis and development of cavemicolous forms. (Harpacticoidea, Crustacea) 



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