Reynolds-Ros 



b. Uterine contraction patterns. Homo sapiens (Primates) 



c. Pulmonary vasculature, fetal and neonatal condition. Cavia spec. (Ro- 

 dentia) , Ovis spec. (Artiodactyla) 



d. Architecture of umbilical blood vessels, distended and nondistended. 

 Homo sapiens (Primates) 



REYSS-BRION (DUCREAU), Mrs. M. — Lab. d'Embryol. exper. du Coll. 

 de France, 1 1 Place Marcelin Berthelot, PARIS Ve, France 

 — Lab. d'Embryol. et Tetarol. exper. du C.N.R.S., 49 bis Avenue de la 

 Belle Gabrielle, NOGENT sur Marne (Seine), France 



a. Influence des rayons X sur le developpement embryonnaire. Pleurodeles 

 Waltlii (Urodela), Galles spec. (Aves) 



b. Influence des rayons X sur le pouvoir inducteur de la gastrula. Pleuro- 

 deles Waltlii (Urodela) 



RICHTER, K. M. B.A., M.A., Ph.D. — Dept. of Anat, School of Med., 

 Univ. of Oklahoma, OKLAHOMA City, Okla., U.S.A. 



RIECK, A. F. B.S., M.S., Ph.D. — Dept. of Physiol, Marquette Univ., 

 561 N. 15th St., MILWAUKEE 3, Wis., U.S.A. 



a. Quantitative correlation of the regenerative process with thyroid activity. 

 Triturus viridescens (Urodela) 



b. Studies on the determination of the limb regeneration blastema. Ambys- 

 toma maculatum (Urodela) 



c. Carcinogenicity versus inhibition of regeneration. Ambustoma maculatum 

 (Urodela) 



d. Studies on cleavage delayed with ultraviolet radiation. Echinarchnius 

 parma (Echinoidea) 



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) 



b. 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 



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) 



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

 metabola, Insecta) 



c. Hereditary vs. environmental factors in longevity. (Diptera, Hymenop- 



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

 per., Ecole pratique des Hautes Etudes, Hopital Broca, 111, Rue L. M. 

 Nordmann, PARIS VIII, France 

 a. Metabolisme du 35 S dans la physiologie de la reproduction. (Mammalia) 

 (en collaboration avec R. MORICARD et Miss M. M. C. S. GOTHlE) 



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