Rap-Rey 



RAPPAPORT, R., Jr. 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. Marinogammarus obtusatus (Gammaridae, Crusta- 

 cea) 



c Comparative micrurgical studies of cytokinesis. Extending present meth- 

 ods to a variety of experimental material and devising new forms of 

 physical experimentation. Marinogammarus obtusatus (Gammaridae, 

 Crustacea) , Echinarachnius parma (Echinoidea) , Rana pipiens (Anura) 



RASMOND, R. Dr. — Lab. de Zool. syst. et de Biol, anim., Fac. des Sci., 

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

 Roosevelt, BRUXELLES, Belgique 

 a. Facteurs de croissance et de gemmulation. Ephydatia Mulleri, E. fluvia- 

 tilis, Spongilla lacustris (Spongillidae, Porifera) 



RASMUSSEN, L. cand. mag. — Biol. Inst, of the Carlsberg Foundation, 16 

 Tagensvej, COPENHAGEN N, Denmark 

 a. Studies on growth and division in pure cultures. Acanthamoeba spec. 

 (Amoebidae) (in collaboration with E. ZEUTHEN) 



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

 Ferrara, Via delle Scienze 17, FERRARA, Italia 



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

 mata), Amia spec, Lepidosteus spec. (Holostei), Salmo spec. (Teleostei) 



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

 c Neural crest development. (Amphibia) 



d. Action of carcinogenic hydrocarbons. (Amphibia) 



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

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



Janskerkhof 3, UTRECHT, Netherlands 



a. Influence of various kations on development. Limnaea stagnalis (Gastro- 

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



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



c Influence of various factors on mitosis and cleavage. Limnaea stagnalis 

 (Gastropoda) (in collaboration with W. L. M. GEILENKIRCHEN and 

 E. D. NIJENHUIS) 



d. Influence of various alcohols on development. Limnaea stagnalis (Gas- 

 tropoda) 



e. Influence of centrifuging on development. Limnaea stagnalis (Gastropoda) 



f. Cytochemistry of RNA in early development. Limnaea stagnalis (Gas- 

 tropoda) 



g. Cell-lineage and head pattern in heat-shock treated embryos. Limnaea 

 stagnalis (Gastropoda) (in collaboration with N. H. VERDONK) 



h. Cytochemistry of oogenesis. Limnaea stagnalis (Gastropoda) (in colla- 

 boration with Miss G. A. UBBELS) 

 i. Application of information theory to oogenesis and embryonic develop- 

 ment. 

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

 of Washington, 115 W. University Parkway, BALTIMORE 10, Md., 

 U.S.A. 

 a. Development of the skin and its derivatives. Gallus gallus (Aves) 

 RAWLS, J. M. B.S., M.A., Ph.D. — Dept. of Biol., Austin Peay State Coll., 

 CLARKSVILLE, Tenn., U.S.A. 



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