Rosin 78 Runns 



ROSIN, S. Dr, P.D. — Zool. Inst, der Univ. Bern. Sahlistr. 8, BERN. 

 Schweiz. 

 (no data received over this year) 



ROSS, Miss J. R. W. B.Sc. M.B., Ch.B. — Dept of Anat., Charing Cross 

 Hosp. Med. School, 62 Chandos Place, LONDON W.C. 2, England 

 (U.K.) 

 a. Developmental abnormalities — foetus acardius. Homo (Primates) 



ROSSINI. Miss M.C. Ph.D. — 1st. di Anat. Comp., Via Belmeloro 8. BO- 

 LOGNA (103), Italia, 

 a. Action of podophyllin on early development. Rana (Anura) 



ROSTAND. J. — 29 Rue Pradier, VILLE d'AVRAY. (Seine-et-Oise), 

 France. 



a. Parthenogenese et gynogenese. Regulation chromosomique par le froid. 

 (Amphibia) 



b. Mutations (Polydactylie, Ectrodactylie, etc.): comportement hereditaire 

 et physiologic genetique. (Amphibia) 



c. Modifications des noyaux au cours de I'ontognese. (Amphibia) 



d. Survie de I'ovule in vitro, a basse temperature. (Amphibia) 

 ROTHFELS. U. Ph.D. — Univ. of Colorado, Med. Center, Dept of 



Pediatrics, 4200 east Ninth Ave, DENVER 7, Col., U.S.A. 



a. Study of differentiation of somites in explants (Spratt technique). Gallus 

 (Aves) (in collaboration with H. HERRMANN) 



b. Study of developmental disturbances related to nutritional deficiencies 

 investigated by application of anti-vitamins and anti-amino acids to the 

 intact egg and to explants (somites). In particular, it will be attempted 

 to define the factors which maintain the balance between myotome, 

 sclerotome and dermatome during differentiation of the somite and are 

 required for the normal development of the retina (possible connection 

 with retrolental fibroplasia of the premature human infant). (Aves) 

 (in collaboration with H. HERRMANN, L. LUBCHENCO and J. 

 McKENZIE) 



RUDNICK. Miss D. Ph.D. — Osborn Zool. Lab., Yale Univ.. NEW 

 HAVEN 11, Conn., U.S.A. 

 a. Histo- and cytogenesis of early embryonic tissues. Gallus (Aves) 

 RUGH, ROBERTS Dr — Dept of Radiology, Coll. of Physicians & Sur- 

 geons, Columbia Univ., NEW YORK 32, N.Y.. U.S.A. 

 a. Effects of ionizing radiations on the developing embryo. 

 RUNNER. M. N. Ph.D. — Roscoe B. Jackson Mem. Lab.. BAR HARBOR. 

 Me., U.S.A. 



a. Maturally occurring congenital abnormalities in inbred strains studied 

 as "environmental indicators". Mus musculus (Rodentia) 



b. Superovulation and viabihty of transplanted ova. Mus musculus (Ro- 

 dentia) 



RUNNSTROM, J. A. M. Ph.Dr, Med. Dr. Prof. — Wenner-Grens Inst, 

 for experimental Biology, Norrtullsgatan 16, STOCKHOLM 23, 

 Sweden. 



a. (Cf. work on the Institute). Physiology of fertilization and development. 

 ( Echinodermata) 



b. Analyzation of the nature of the egg antifertihzin. (Echinodermata) 

 (in collaboration with A. MONROY, Marine Biol. Stat., WOODS 

 HOLE, Mass., U.S.A.) 



