Ber-Ble 



HERMANN, F. Lie. es Sci. — Lab. d'Embryol. exper. du Coll. de France. 



1 1 Place Marcelin Berthelot. PARIS Ve, France 



— Lab. d'Embryol. et Teratol. exper. du C.N.R.S., 49bis Avenue de la 



Belle Gabrielle, NOGENT sur Marne (Seine), France 

 a. Recherches sur les heterogreffes embryonnaires, la compatibility et les 



affinites des tissus embryonnaires en association xenoplastiques. Gallus 



gallus (Aves), Mus musculus albinus (Rodentia) 

 BERNSTEIN, G. S. B.A., M.A., Ph.D. — Dept. of Pharmacol., School of 



Med., Univ. of Southern California, LOS ANGELES, Cal., U.S.A. 



a. Life-span, motility and metabolism of spermatozoa. (Echinodermata; 

 Amphibia; Mammalia) 



b. Physiology of fertilization. (Amphibia) 



BERRILL, N. J. Ph.D., D.Sc, F.R.S., Prof. — Dept. of Zool., McGill Univ., 



MONTREAL, Quebec, Canada 

 BERTMAR, G. Fil.Dr. — Zool. Inst., Univ. of Stockholm, 70A Radmans- 



gatan, STOCKHOLM, Sweden 

 a. Development and morphology of the skeleton of the head. (Characidae, 



Teleostei) 

 BERTOLINI, B. Dr.Biol.Sci. — 1st. di Anat. comp. "G. B. Grassi", Fac. di 



Sci., Univ. di Roma, Via Borelli 50, ROMA, Italia 

 a. Histochemistry of developing nervous system. Triturus spec. (Urodela), 



Gallus spec. (Aves) 

 BETCHAKU, T. — Dept. of Zool, Wabash Coll., CRAWFORDSVILLE, 



Ind., U.S.A. 

 BEYLSTEIN, J. — Lab. d'Embryol., Fac. de Med., 31 Rue Lionnois, NANCY 



(Meurthe & Moselle), France 

 a. Developpement du coeur. ( Aves) 

 BIEBER, S. B.A., M.S., Ph.D. — Section of Biol., The Wellcome Research 



Labs., TUCKAHOE 7, Westchester County, N.Y., U.S.A. 

 a. Nucleic acid metabolism during gametogenesis, embryogenesis and regen- 

 eration; studies carried out with aid of analogues of purines and pyri- 



midines, and with radioisotope-labeled nucleic acid derivatives. Rana 



pipiens (Anura) 

 BIELANSKA (OSUCHOWSKA), Mrs. Z. Dr., Prof. — Inst, of Histol. 



and Embryol., Veter. Fac, ul. Grochowska 272, WARSZAWA, Poland 



a. Histochemical studies on differentiation of gonads. Sus domestica (Ar~ 

 tiodactyla) 



b. Histochemical studies on oogenesis and embryonic development. Cordy- 

 lophora lacustris (Hydroidea) 



BIELIAVSKY, N. Lie. en Sci. Zool. —Lab. de Morphol. anim., Univ. libre 



de Bruxelles, 1850 Chaussee de Wavre, BRUXELLES-Auderghem. 



Belgique 

 a. Reagregation d'embryons dissocies. Ambystoma mexicanum, Pleurodeles 



Waltlii, Rana tempotatia (Amphibia) 

 BIER, K. Dr. rer. nat. — Zool. Inst, der Univ. Wiirzburg, Rontgenring 10, 



WORZBURG, Deutsche Bundesrepublik 

 a. Cytologisch-histochemische Untersuchungen iiber das Wachstum der 



Oocyten in Beziehung zur Embryonal- und Postembryonalentwicklung. 



Formica polyctena (Hymenoptera), Calliphora erythrocephala (Diptera) 



18 



