b. Culture d'organes embryonnaires sur des extraits homo- et heterologues. 

 Gallus gallus (Aves) 



c. Application de methodes immunochimiques a l'etude de l'apparition des 

 constitutants specifiques au cours du developpement. Gallus gallus 

 (Aves) 



CROWELL, Miss J. Ph.D. — 1st. di Zool., Univ. di Palermo, Via Archirafi 



18, PALERMO, Italia 

 a. Electron microscopy of early developmental stages of forms with mosaic 



development. Ilyanassa obsoleta (Gastropoda) 

 CROWELL, P. S. A.B., A.M., Ph.D., M.I.I.E. — Dept. of Zool., Indiana 



Univ., BLOOMINGTON, Ind., U.S.A. 

 CRUZ (DE LOSADA), Mrs. M. V. DE LA M.D. — Dept. of Embryol., 



Inst. Nac. de Cardiol., Ave. Cuauhtemoc nr. 300, MEXICO 7. D. F., 



Mexico 



a. The action of influenza virus (P-R8) upon cardiac development. Gallus 

 spec. (Aves) 



b. A new surgical technique for direct study of the embryonic heart. Gallus 

 spec. (Aves) 



c. The role of transphosphorylases in the control of cardiac oxygen con- 

 sumption during development. Gallus spec. (Aves) 



CSILLIK, B. M.D. — Dept. of Anat, Univ. Med. School, SZEGED, Hun- 

 gary 



a. Developmental histochemistry of motor end plates (cholinesterase ac- 

 tivity). Mus rattus (Rodentia) (in collaboration with I. SCHNEIDER 

 and G. KALMAN) 



b. Submicroscopical analysis of the development of post-synaptic mem- 

 branes. Mus rattus (Rodentia) (in collaboration with I. SCHNEIDER 

 and G. KALMAN) 



c. Developmental histochemistry of muscle spindles (cholinesterase acti- 

 vity). Mus rattus (Rodentia) (in collaboration with. I. SCHNEIDER 

 and G. KALMAN) 



CURTIS, A. S. G. M.A., Ph.D. — Dept. of Anat. and Embryol., Univ. Coll. 

 of London, Gower St., LONDON W.C.I, England 



a. Surface properties, movement and adhesion of embryonic cells and can- 

 cerous tissues. (Amphibia; Aves; Mammalia) 



b. Dissociation and reaggregation of embryos. (Amphibia; Aves) 



c. Cytoplasmic grafting. (Amphibia) 



CURY, G. Agr. Phil., Lic.es Sci. — Lab. d'Embryol., Fac. de Med., 31 Rue 

 Lionnois, NANCY (Meurthe & Moselle), France 



a. Regulation de l'oeuf. (Amphibia) 



b. Developpement de l'hypophyse. (Aves) (en collaboration avec G. 

 GRIGNON, Lab. d'Histol.) 



c. Hematopoiese. (Aves) (en collaboration avec A. DOLLANDER, J. P. 

 FRITSCH et Mrs. D. GASSIOLE) 



CZAPSKA, D. Mgr. — Chair of Gener. Biol., Silesian Acad, of Med.. 

 Rokitnica, ZABRZE 8, Poland 



a. Chromosome studies. Plantago spec. 



b. Mitotic regulation. Mus musculus albinus (Rodentia) 



CZIHAK, G. Dr.phil. — Zool. Inst, der Univ. Tubingen, Holderlinstr. 12, 

 TUBINGEN, Deutsche Bundesrepubliek 



33 



