c. Analysis of components in the regeneration of adult forelimbs, using 

 ultraviolet radiation. Triturus viridescens (Urodela) 

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

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

 U.S.A. 

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

 h. Analysis of growth rates of prenatal ossification centers. Homo sapiens 

 (Primates) 

 ROCCA, E. Dr Biol.Sci. — 1st. di Zool. e Anat. comp., Univ. di Milano, 

 Via Celoria 10, MILANO, Italia phibia) 



a. Flow birefringence and physical chemistry of embryonic proteins. (Am- 

 ROCK. J. M.D. — Free Hospital for Women, 245 Pond Ave, BROOK- 

 LINE. Mass., U.S.A. 

 a. Histochemical observations on early fertilized ova of less than 14 days 

 age. Homo sapiens (Primates) (in collaboration with A. T. HERTIG, 

 W. J. MULLIGAN and Miss E. C. ADAMS) 

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

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

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



tica (Diptera) 

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

 metabola, Insecta) 

 ROLLHAUSER, H. Dr med.. Prof. — Anat. Inst, der Univ., Robert Koch- 

 strasse 6, MARBURG/Lahn, Deutschland 

 (no embryological work in progress) 

 ROLLHAUSER— ter HORST, Mrs J. O. B. Dr rer.nat. — Anat. Inst, der 

 Univ., Robert Kochstr. 6. MARBURG/Lahn, Deutschland 

 a. Reaktion verschieden vorbehandelten Gastrula-Ektoderms auf densel- 

 ben heterogenen Induktor. Behandlung der Gastrulae mit Hormonen, 

 NaF, Butylalkohol u.a. Mit dem isolierten Ektoderm dieser Gastrulae 

 werden Stucke erwachsener Triton-Leber umhiillt. Triton alpestris 

 (Urodela) 

 ROMANI, Miss M. L. Dr — 1st. di Zool. e Anat. comp.. Via Universita 4, 

 MODENA, Italia 

 a. Activity of sex hormones on the sex differentiation of gonads and Bid- 

 der's orqan. Bufo bufo (Anura) 

 ROMANKOWOWA, Mrs A. M.Sc. — Zaklad Anat. Porownawczej, Inst. 

 Zool. Uniw., ul. Sienkiewicza 21, WROCLAW, Poland 

 a. Development of sesamoid bones in the carpus. (Rodentia, Insectivora) 

 ROMANOFF, A. L. B.S., M.S., Ph.D., Prof. — Lab. of Chem. Embryol., 



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

 ROMANOVSKY, a. D.Sc. — Dept of Gener. and Exper. Zool.. Zool. 

 Inst, of Charles Univ., Vinicna 7, PRAHA II. Czechoslovakia 



a. Regeneration of the central nervous system in early developmental 

 stages. Ambystoma mexicanum, Triturus alpestris, Triturus taeniatus 

 (Urodela) 



b. The influence of parabiosis in early embryonal stages on survival of 

 heteroplastic grafts of limbs and skin. Ambystoma mexicanum, Triturus 

 alpestris, T. taeniatus, T. cristatus, T. montandoni (Urodela) 



ROMIJN, C. Dr, Prof. — Lab. for Veterinary Physiol., Alexander Numan- 

 kade 93, UTRECHT, Holland 



91 



