Rav 75 Reyer 



RAVEN, Chr. P. F.R.A.. Dr Sc, Prof. — Zool. Lab. der Rijks Univ., 

 Janskerkhof 3; Hubrecht Lab., Internal. Embryol. In.st.. Janskerkhof 2, 

 UTRECHT, Holland, 

 a. Nature of polar plasms. Limnaea stagnalis (Gastropoda) 

 h. Development of neural crest. Xenopus laevis (Anura) (Normal Table) 



c. Development of normal and Li-treated embryos. Limnaea stagnalis 

 (Gastropoda) 



d. Analysis of lithium action. Limnaea stagnalis (Gastropoda) (in col- 

 laboration with W. G. BRAAMS, A. C. J. BURGERS, P. F. ELBERS. 

 W. L. M. GEILENKIRCHEN, J. ISINGS, Miss T. C. M. KOE- 

 VOETS, G. SCHOLTEN and M. VROMAN) 



e. Induction processes during organogenesis. Limnaea stagnalis (Gastro- 

 poda) 



f. Removal of antipolar lobe in centrifuged eggs. Dentalium (Scaphopoda) 

 RAWLES. Miss M. E. Ph.D. — Department of Biology, The Johns 



Hopkins University, Charles and 34th Strs, BALTIMORE 18, Mary- 

 land, U.S.A. 

 a. Analysis of the development of regional differences in feather color 

 pattern. Factors affecting the distribution and development of melanin 

 pigment-forming cells. Gallus domesticus (Aves) 

 h. Analysis of the processes involved in the development of pigrnentation 

 and pigmentation patterns in the hair and skin. Mus spec. ("Hooded 

 rat") and Mus spec. ("C57" Black Mouse) (Rodentia) 



RAYNAUD, A. Dr es Sc. — Lab. d'Embryol. du Lab. Pasteur de I'lnst. du 

 Radium, 26 Rue d'Ulm, PARIS Ve, France, 

 (no data received over this year) 



REEVE, E. C. R. B.A., Ph.D. — Genet. Lab., Anim. Breeding and Genet. 

 Res. Organ., Inst, of Anim. Genet., West Mains Rd., King's Buildings, 

 EDINBURGH 9, Scotland (U.K.) 

 a. Developmental study of Hnes selected for large and small body size. 

 Drosophila melanogaster (Insecta) (in collaboration with F. W. RO- 

 BERTSON) 



REINBOLD, R. Lie. es Sci. — Lab. d'Embryol. et de Teratol. exper. de la 

 Fac. des Sci. de I'Univ. de Strasbourg, 12 Rue de I'Universite, STRAS- 

 BOURG, France, 

 a. Differenciation sexuelle normale et conditionnement hormonal du tuber- 

 cule genital chez I'embryon. Gallus (Aves) 



REIS, R. H. Ph.D. — Dept of Biol., Marquette Univ., 1131 West Wisconsin 

 Ave. MILWAUKEE 3, Wis., U.S.A. 

 a. A study of the anomalous renal vessels and inferior vena cava. Canis 

 familiaris and Felis domestica (Carniuora) 



REMOTTI. E. Prof. — 1st. di Anat. e Fisiol. comp., Univ. di Genova, 

 GENOVA, Italia, 

 (no data received over this year) 



REVERBERI, G. Dr, Prof. — 1st. di Zool., Via Archirafi 18, PALERMO, 

 Italia. 



a. The morphogenetic role of the yolk material, studied by means of hetero- 

 specific transplantations. (Amphibia) 



b. Investigations on overripe eggs. (Ascidiae, Urochordata) 



REYER, R. W. Ph.D. — Dept of Anat., The School of Med., Univ. of 

 Pittsburgh, PITTSBURGH 13, Pa.. U.S.A. 



