But-Can 



a. Study of the mechanics of the formation of the regeneration blastema; 

 the influence of nerves on blastema formation; regression in nerveless 

 non-regenerating hmbs. Ambystoma punctatum, A. opacum (Urodela) 



b. Effects of ultraviolet radiation on limb development and limb regenera- 

 tion. (Urodela) 



c. Problems of polarity in the limb; regeneration after reversal of the 

 proximo-distal axis. (Urodela) 



d. Study of epidermal hyperplasia. (Urodela; Mammalia) 



e. Spinal cord regeneration. (Urodela) 



BUTLER, H. M.A., M.D., B.Chir. — Dept. of Anat., Univ. of Saskatche- 

 wan. SASKATOON, Saskatchewan, Canada 

 a. Reproductive cycle, implantation, placentation and early embryology. 



Galago senegalensis senegalensis (Lemuroidea, Primates) 

 BUTROS, J. M. M.A., PH.D., Prof. — Dept. of Biol, American Univ. of 



Beirut, BEIRUT, Lebanon 

 a. Differentiation in explanted fragments of early blastoderms. Gallus 



domesticus (Aves) 

 h. Promoting action of RNA from embryonic organs on differentiation of 



fragments of early blastoderms. Gallus domesticus (Aves) 

 c. Study of possible inductive action of nucleic acids (extracted from 



embryonic organs) on explants from young blastoderms. Gallus domesti- 

 cus (Aves) 

 BUTSCHAK, G. Dr.rer.nat. — Inst, fiir experimentellc Krebsforschung, 



Deutsche Akademie der Wiss. 2u Berlin, Lindenberger Weg 70, BER- 



LINBUCH. D.D.R. 



(no embryological work in progress) 

 BOYUKOZER, Miss I. M.D., Prof. — Inst, of Histol. and Embryol., Med. 



Fac, Univ of Ankara, ANKARA, Turkey 

 BUZNIKOV, G. A. Cand.biol.sci. — Inst, of Animal Morphol., Acad, of Sci. 



of the U.S.S.R., Vavilov St. 12, MOSCOW V-133, U.S.S.R. 

 BYCZKOWSKA (SMYK), Mrs. W. Dr. — Dept. of Comp. Anat., ul. 



Krupnicza 50, KRAKoW, Poland 

 a. The developing liver as seen in the electron microscope. Salmo trutta 



(Teleostei) 

 CACERES, A. — Lab. d'Anat.. Fac. de Med.. 45 Rue des Sts. Peres. PARIS 



Vie, France 

 a. Developpement de Tepiphyse. Homo sapiens (Primates) 

 CAHN, Mrs. M. B. — Dept. of Pediatrics, Stanford Univ. School of Med., 



300 Pasteur Drive. PALO ALTO, Calif.. U.S.A. 

 CAHN, R. D. Dr. — Dept. of Pediatrics, Standford Univ. School of Med., 



300 Pasteur Drive. PALO ALTO. Cahf.. U.S.A. 

 CAIRNS. J. M. A.B.. M.S.. Ph.D. — Biol. Station, Roswell Park Memorial 



Inst., SPRINGVILLE, N.Y., U.S.A. 

 CALAME, Miss S. M. Lic.es Sci. — Lab. d'Embryol. et Teratol. exper. du 



C.N.R.S., 49bis Avenue de la Belle Gabrielle, NOGENT sur Marne 



(Seine), France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Berthe- 



lot. PARIS Ve, France 

 CAMBAR, R. Dr., M.I. I.E., Prof. — Lab. de Biol, anim., Fac. des Sci. de 



Bordeaux, 351 Cours de la Liberation, TALENCE (Gironde), France 

 a. Etude descriptive et experimental de la morphogenese du mesonephros. 



34 



