a. Sperm enzyme activity. Mellita quinquiesperforata (Clypeastroidea. 

 Echinoidea) 

 RAYNAUD, A. Dr. es Sci. ( M.I. I.E. — Lab. de l'lnst. Pasteur, Quartier des 

 Vieux Moulins, SANNOIS (S. 5 O.), France 



a. Etude du developpement normal du tractus genital chez l'embryon. 

 Anguis fragilis (Lacertilia) 



b. Effets de la destruction au moyen des rayons X, des ebauches hypo- 

 physaires. Anguis fragilis (Lacertilia) 



c. Etude de l'orientation de 1'axe de symetrie embryonnaire et des rapports 

 existant entre cette orientation et la rotation des oeufs dans l'uterus. 

 Anguis fragilis (Lacertilia) 



REAMS, W. M., Jr. B.S., Ph.D. — Dept. of Zool., Louisiana State Univ., 



BATON ROUGE 3, La., U.S.A. 

 RECOURT, A. M.Sc. — Centrum voor Electronenmicroscopie, Janskerkhof 



3, UTRECHT, Netherlands 

 REGGI, L. M. de — Lab. de Zool. exper., Fac. des Sci., 16 Quai CI. Bernard, 



LYON, France 

 a. Variations morphologiques et physiologiques dans la developpement, sous 



Taction de divers facteurs. (Phytophthires, Rhynchota) 

 REGONDAUD, J. Lie. es Sci. — Lab. de Zool. et Biol, anim., Fac. des Sci., 



POITIERS, Vienne, France 



a. Developpement de l'appareil genital. (Pulmonata, Gastropoda) 



b. Evolution de la cavite palleale. (Pulmonata, Gastropoda) 

 RENGEL, S. L. Dr.Med., Prof. — Dept. of Anat., Fac. de Ci.Med., Univer- 



sidad de Los Andes, MfiRIDA, Venezuela 

 REVERBERI, G. Dr., F.I.I.E., Prof. — 1st. di Zool., Via Archirafi 18, 



PALERMO, Italia 

 a. The role of some enzymes in embryonic development. (Marine Everte- 



brata) 

 REYER, R. W. B.A., M.A., Ph.D., M.I.I.E. — Dept. of Microanat., School 



of Med., Med. Center, W. Virginia Univ., MORGANTOWN, W. Va., 



U.S.A. 



a. An experimental analysis of Jens regeneration: a study of the causal 

 mechanisms involved in lens regeneration from the dorsal iris and their 

 relation to the processes of lens induction in the embryo. Triturus virides~ 

 cens, Amby stoma punctatum (Urodela) (in collaboration with L. S. 

 STONE, New Haven, Conn.) 



b. A study of the coordinate induction systems operating in the develop- 

 ment of the embryonic lens. Triturus viridescens, Ambystoma punctatum, 

 A. mexicanum (Urodela) 



REYNOLDS, S. R. M. A.B., M.A., Ph.D., D.Sc. (hon.), Dr. hon. causa 

 (Univ. Catol. de Chile), Prof. hon. causa (Fac. de Med., Montevideo) 

 — Dept. of Anat., Coll. of Med., Univ. of Illinois, 1853 W. Polk St., 

 CHICAGO 12, 111., U.S.A. 



a. Fetal vascular physiology. Homo sapiens, Lepus spec, Ovis spec. (Mam- 

 malia) 



b. Uterine contraction patterns. Homo sapiens (Primates) 



c. Pulmonary vasculature, fetal and neonatal condition. Cavia spec. (Ro~ 

 dentia), Ovis spec. (Artiodactyla) 



d. Architecture of umbilical blood vessels, distended and nondistended. 

 Homo sapiens (Primates) 



115 



