Ran-Rcm 



RANCK J. B.S.. M.D. — Lab. of Perinatal Physiol.. NINDB. School of 

 Med., SAN JUAN, P.R.. U.S.A. 

 a. Effects of adverse factors in the perinatal period on the electroencephalo- 

 gram of the fetus and infant. (Rodentia. Primates) (in collaboration with 

 Miss M. I. R. RAMIREZ de ARELLANO) 



RANZL S. Ph.D., F.LLE., Prof. — 1st. di Zool. e Anat. Comp., Univ. di 

 Milano. Via Celoria 10, MILANO. Italia 

 a. Proteins and antigens in embryonic development. (Echinodermata. Am.' 

 phibia) 



RANZOLI. F. Dr — 1st. di Zool. e Anat. comp.. Via Universita 4, MO- 

 DENA, Italia 



a. Nucleolar changes and cycle of the ribonucleic acids during oogenesis. 

 (Gastropoda, Ascidiaceae) 



b. Sexual differentiation and hermaphroditism. Hydroides norvegica (Ser- 

 pulidae, Polychaeta) 



c. Regeneration and morphogenesis of the thoracic segments. Salmacina in- 

 crustans (Serpulidae, Polychaeta) 



RAPPAPORT. Jr, R. B.S., M.S., Ph.D. — Dept of Biol., Union Coll., 

 SCHENECTADY 8, N.Y., U.S.A. 



a. Role of water in growth and morphogenesis. Rana pipiens (Anura) 



b. Early embryology. Marino gammarus obtusatus (Gammarides, Crusta- 

 cea) 



RASMONT, R. Lie. Sci. Zool. — Lab. de Zool., Fac. des Sci.. Inst. Zool. 



Torley-Rousseau, Univ. libre de Bruxelles, 50 Avenue F. D. Roosevelt, 



BRUXELLES. Belgique 

 RAUNICH, L. Ph.D., M.D., M.I.I.E. — 1st. di Anat. Comp., Univ. di Fer- 



rara, FERRARA, Italia 



— 1st. di Anat. Comp., Via Belmeloro 8, BOLOGNA (103), Italia 



a. Development of blood and vascular system. Petromyzon spec. (Cyclo- 

 stomata), Amia spec, Lepidosteus spec. (Holostei) 



b. Action of growth-substances on tail-regeneration. Rana spec, Bufo 

 spec. (Anura) 



c Determination of neural plate. Triton spec, Ambystoma spec. (Urodela) 



d. Neural crest development. (Amphibia) 



e. Action of carcinogenic hydrocarbons. (Amphibia) 



i. Steroids during development (chemical detection). (Amphibia) 

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

 Univ., Janskerkhof 3, UTRECHT, Holland 



a. Influence of lithium on morphogenesis. Aplysia limacina (Gastropoda) 



b. Influence of various kations on development. Limnaea stagnalis (Gas- 

 tropoda) (in collaboration with W. L. M. GEILENKIRCHEN) 



c Development of stomodaeum. Limnaea stagnalis (Gastropoda) 



d. Structure of egg-follicle during oogenesis. Limnaea stagnalis (Gastro- 

 poda) 



e. Maturation divisions of eggs. Various spp. (Gastropoda) 

 RAWLES, Miss M. E. Ph.D., M.I.I.E. — Dept of Embryol.. Carnegie Inst. 



of Washington. Wolfe and Madison Sts. BALTIMORE 5. Md, U.S.A. 

 RAYNAUD. A. Dr es Sci. — Lab. de I'lnst. Pasteur, SANNOIS, Seine et 

 Oise. France 

 a. Recherches sur le developpement embryonnaire normal de la glande 

 mammaire. Mus musculus (Rodentia) 



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