Ros-Rut 



ROSENBAUM, R. M. B.S., A.M., Ph.D. — Dept. of Pathol., Albert Ein- 

 stein Coll. of Med., Yeshiva Univ., Eastchester Road and Morris Park 

 Ave., NEW YORK 61, N.Y., U.S.A. 



ROSIN, S. Dr., Prof. — Abt. f. Genet., Zool. Inst, der Univ. Bern, Sahlistr. 

 8, BERN, Schweiz 



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

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

 a. The development of the genital tract. Ovis aries (Artiodactyla) 



ROSSI, A. Dr. — 1st. di Anat. comp. "G. B. Grassi", Fac. di Sci., Univ. di 

 Roma, Via Borelli 50, ROMA, Italia 

 a. Xenoplastic grafts. (Amphibia) 



ROSSINI, Miss M. C. Dr. Nat. Sci. — 1st. di Anat. Comp., Via Belmeloro 8, 

 BOLOGNA (103), Italia 



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.) et anomalies provoquees par 

 le milieu exterieur (principalement, "Anomalie P"). (Amphibia) 



c. Action protectrice de la glycerine a 1'egard de la congelation des cellules 

 spermatiques. (Amphibia) 



ROTHENBUHLER, W. C. B.S., M.S., Ph.D. — Dept. of Zool. and Ento- 

 mol., Iowa State Coll., AMES, Iowa, U.S.A. 



a. Cleavage of zygote and accessory sperms in the origin of gynandro- 

 morphs. Apis mellifera (Hymenoptera) 



b. Genetics of sex determination in haplo-diploid mosaics. Apis mellifera 

 (Hymenoptera) 



ROTHSCHILD, Lord — Univ. Museum of Zool., Univ. of Cambridge, Down- 

 ing St., CAMBRIDGE, England * 



ROUILLER, Ch. Prof — Inst. d'Histol. et d'Embryol., Ecole de Med., GE- 

 NEVE, Suisse 

 (no embryological work in progress) 



ROUX, Ch. — Lab. d'Embryol., Fac. de Med., 45 Rue des Sts. Peres, PARIS 

 Vie, France 



a. Influence teratogene des intoxications. Mus rattus (Rodentia) 



b. Influence teratogene des infections. Mus rattus (Rodentia) 



RUBEN, L. N. A.B., M.S., Ph.D. — Biol. Dept., Reed College, PORTLAND 

 2, Ore., U.S.A. 

 a. Xenoplastic studies. 1. The interrelationships of cancer and regenerating 

 sytems. 2. The induction of supernumerary limbs. Rana pipiens, Am- 

 bystoma opacum, Triturus viridescens, Taricha granulosa (Amphibia) 



RUCH, }. V. — Inst. d'Embryol., Fac. de Med., 1 Place de l'Hopital, STRAS- 

 BOURG, France 



a. Recherches sur la symetrie bilaterale. (Pisces) 



b. Recherches sur le maintien des canaux de Miiller. 



RODEBERG, S. I. Fil.lic. — Tornblad-Inst. for comp. Embryol., Biskops- 

 gatan 7, LUND, Sweden 

 a. Embryogenesis of cerebellar nuclei. (Vertebrata) 

 RUDNICK, Miss D. Ph.D., M.I. I.E. — Osborn Zool. Lab., Yale Univ., 

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

 a. Glutamine metabolism in development. Gallus spec. (Aves) 



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