b A study on the control of pigmentation in regenerating appendages. Uca pugilator, 

 Cambarellus shufeldti (Decapoda, Crustacea) 



• RANZI, S. Ph.D., Prof. — 1st. di Zool., Univ. di Milano. Via Celoria 10. MILANO, 



Italia 

 RANZOLI, F. Dr., Prof. — 1st. di Zool.. Univ. di Catania. CATANIA, Italia 

 RAO. K. V. M.Sc. — Dept. of Zool., Univ. of Delhi. DELHI 7, India 

 RAO, S. R. V. Ph.D. — Dept. of Zool., Univ. of Delhi. DELHI 7, India 

 RAPOLA. M. H. J. M.D. — Dept. of Anat.. Univ. of Helsinki. HELSINKI. Finland 

 RAPPAPORT, R., Jr. Ph.D., Prof. — Dept. of Biol. Scis., Union College, SCHENEC- 

 TADY, N.Y. 12308, U.S.A. 

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

 b Early embryology. Marinogammarus obfusatus (Gammaridae. Crustacea) 

 c Comparative micrurgical studies on cytokinesis: extending present methods to a variety 

 of experimental material and devising new forms of physical experimentation. Marino- 

 gammarus obtusatus (Gammaridae, Crustacea), Echinarachnius parma (Echinoidea), 

 Rana pipiens (Anura) 

 RASCH (MYRBERG). Mrs. E. M. Ph.D.. Prof. — Dept. of Biol., Marquette Univ., 530 



North 15th St., MILWAUKEE, Wis. 53233. U.S.A. 

 a Atypical nucleoprotein synthesis during larval development. Sciara coprophila (Dipteca) 

 h Cytochemistry and fine structural analysis of puffs in giant chromosomes. Sciara 



coprophila (Dipt era) 

 RASMUSSEN, L. Cand.mag. — Biol. Inst, of the Carlsberg Found.. 16 Tagensvej. COPEN- 

 HAGEN N. Denmark 



• RAUNICH, L. Ph.D.. M.D., Prof. — 1st. di Anat. comp., Fac. di Sci.. Univ. di Ferrara. 



Via Scienze 17, FERRARA. Italia 

 a Morphological and biochemical aspects of embryonic and foetal blood cell differentiation. 



(Vertebrata) 

 h Hemopoietic factors during development. (Anura), Gallus gallus (Aves) 



• RAVEN. Ch. P. D.Sc, Prof . — Zool. Lab.. State Univ. of Utrecht. Janskerkhof 3, 



UTRECHT, Netherlands 

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

 b Application of information theory to oogenesis and embryonic development, 

 c Morphology of the head region in cyclocephalic embryos. Limnaea stagnalis (Gastropoda) 

 d Cortical morphogenetic field and early ooplasmic segregation. Various spp. (Gastropoda) 

 e Transfer of information from egg follicle to oocyte. Various spp. (Gastropoda) 



• RAWLES (SPURBECK), Mrs. M. E. Ph.D. — Dept. of Biol., Univ. of Virginia, Gilmer 



Hall, CHARLOTTESVILLE. Va. 22903, U.S.A. 

 a The origin and development of regional specialization in the integumentary system. Gallus 



gallus (Aves) 

 RAWLS, J. M. Ph.D., Prof. — Dept. of Biol., Lamar State Coll. of Technol., BEAUMONT, 



Tex., U.S.A. 

 RAY, A. K. M.Sc — Cell Res. Unit, Dept. of Zool., Univ. Coll. of Sci. and Technol., 35, 



Ballygunje Circular Rd., CALCUTTA 19, India 

 RAYCHOWDHURI, S. M.Sc — Cell Res. Unit, Dept. of Zool., Univ. of Calcutta. 35. 



Ballygunje Circular Rd.. CALCUTTA 19, India 



• RAYNAUD. A. Dr.es Sci. — Service d'Embryol. exper. de I'lnst. Pasteur, 20 Rue des 



Moulins, SANNOIS (Val d'Oise), France 

 a Etude du developpement normal du tractus genital chez I'embryon. Anguis fragilis (Lacer- 



tilia) 

 b Effets de la destruction au moyen des rayons X, des ebauches hypophysaires. Anguis 



fragilis (Lacertilia) 

 c Etude de I'orientation de I'axe de symmetrie embryonnaire et des rapports existant entre 



cette orientation et la rotation des oeufs dans I'uterus. Anguis fragilis (Lacertilia) 

 d Researches on the formation and the regression of the limb buds. Anguis fragilis (Lacer- 

 tilia) 

 e Histogenesis of the adrenal gland. Anguis fragilis (Lacertilia) 

 f Decapitation of the embryo. Anguis fragilis (Lacertilia) 

 g Effects of sexual hormones on the sexual differentiation of the embryo. Anguis fragilis. 



Lacerta viridis (Lacertilia) 

 h Researches on the capacities of differentiation in vitro of anlagen of the genital tract. 



Anguis fragilis (Lacertilia) 

 i Researches upon the establishement of urogenital connections and upon the development 



of the cloaca. Anguis fragilis (Lacertilia) (in collaboration with CI. PIEAU) 

 RAYNAUD (CHAULIN-SERVINIERE), Mrs. J. Dr.es Sci. — Service d'Embryol. exper. de 



rinst. Pasteur, 20 Rue des Moulins, SANNOIS (Val d'Oise), France 

 a Histochemical researches on the functional differentiation of the endocrine glands in the 



embryo. Anguis fragilis (Lacertilia) 

 h Culture i n v i t r o of the anlage of the sub-maxillary gland. Mus musculus (Rodentia) 



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