Rollhauscr-t. U. 78 Rost 



a Rcaktion verschicdcn vorbehandcltcn Gastrula-Ektoderms auf denselben 

 hcteroqcncn Induktor. Behandlung der Gastrulae mit Hormoncn, Nat-. 

 Butylalkohol u.a. Mit dem isolierten Ektoderm dieser Gastrulae werdeu 

 StiJcke crwachscner Triton-Leber umhullt. Triton alpestns (Urodela) 

 ROMANKOWA Mrs A. M.Sc. — Zaklad Anat. Porownawczcj. Inst. Zool. 

 Uniw.. ul. Sicnkiewicza 21. WROCLAW. Poland 

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

 RONCORONI. G. — 1st. di Anat. umana norm, dell'llniv. di Miiano. Via 

 Manq.agaili 31. MILANO. Italia ,r. ^ • . 



a Histochemical study of histogenesis of cartilage. Mus rattus (Rodentia) 

 (in collaboration with Mrs V. PRETO PARVIS) 

 ROOFE. P. G. Ph.D.. Prof. — Dept of Anat.. Univ. of Kansas, LAW- 

 RENCE, Kansas, U.S.A. 



a. Cytochemical and microchemical study of the developing nervous system 

 and its relationship to developing behaviour patterns. Ambystoma macu- 

 latum (Urodela) (in collaboration with Mrs E. L. WENGER) 



ROON A. C. de B.Sc. — Zool. Lab. der Rijks Univ., Janskerkhof 3. 

 UTRECHT. Holland 

 a Influence of heat shock. Limnaea stagnalis (Gastropoda) (in collabora- 

 tion with G. A. VAN ERKEL and A. M. STADHOUDERS) 



b. Development of diencephalon. Torpedo marmorata (Selachii) 

 ROOSEN-RUNGE E. C. M.D. — School of Med.. Univ. of Washington, 



SEATTLE 5, Wash., U.S.A. 

 a. Quantitative studies in spermatogenesis. (Mammalia) 

 ROSE. S. M. Ph.D., Prof. — Dept of Zool., Univ. of lUinois, URBANA, 

 111., U.S.A. 

 a. Embryological studies in relation to regeneration, tumor formation and 

 specific inhibition of embryonic differentiation. Rana, various spec. 

 (Anura) 

 ROSENBAUM, R. M. B.S.. Ph.D. — Biol. Lab.. Harvard Univ., CAM- 

 BRIDGE 38. Mass.. U.S.A. (no data received over some years) 

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

 Schweiz 

 a. Borstenmuster und Flugelenwicklung. Drosophila (Diptera) (in Zusam- 

 menarbeit mit W. NEF) 

 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 

 (U.K.) 

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

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

 BOLOGNA (103), Italia 



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



b. Analysis of formative movements during neurulation (with vital stains). 

 (Amphibia) 



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

 France 



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

 (Amphibia) 



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

 ct physiologie genetique. (Amphibia) 



