Brunn 18 Butler 



BRUNNEKREEFT, F. — Zool. Lab. der Rijks Univ., Janskerkhof 3, 



UTRECHT, Holland, 

 a. Influence of centrifugation on animal pole plasm. Limnaea stagnalis 



(Gastropoda) 

 BRUZZONE, S. M.D. — Dept de Med. Exper. del Servicio Nacional de 



Salubridad, Av. Irarrazaval 849, SANTIAGO, Chile, South America. 



a. Hormonal interrelations between ovary and hypophysis. Ovarian grafts 

 in the spleen. Cavia cob. (Mammalia) (in collaboration with A. LIP- 

 SCHUTZ, R. IGLESIAS, Miss E. MARDONES and Miss M. 

 BARAKONA) 



b. Influence of steroids on the gonadotrophic function of the hypophysis; 

 and on the follicular development of the ovary. Ovarian grafts in the 

 spleen; with the simultaneous action of steroids absorbed from beneath 

 the skin, or absorbed from the spleen; and other devices. Cavia cob. 

 (Mammalia) (in collaboration with A. LIPSCHUTZ, R. IGLESIAS, 

 Miss E. MARDONES and Miss M. BARAKONA) 



BUCHER, N. — Zool.-vergl. Anat. Inst., Naturw. Fak., Univ. Zurich, 



Kiinstlergasse 16, ZURICH 6, Schweiz. 

 a. Influence of radiation and chemicals on Drosophila melanogaster-ovaries. 



(Insecta) 

 BUCHTOWNA, Miss A. M.Sc. — Zaklad Anat. Porownawczej, Inst. 



Zool. Uniw., ul. Sienkiewicza 21, WROCLAW, Poland, 

 a. Development of ribs. Salmonidae and Cyprinodontidae (Teleostei) and 



Salamandra (Urodela) 

 BUNO, W. B.S., Ph.D., Prof. — Dept de Histol. y Embriol., Fac. de Med., 



MONTEVIDEO, Uruguay, S. America. 



a. Normal table of the development of Bufo arenarum Hensen. (Amphibia) 



b. Role of the Hensen knot. Induction in birds. 



c. Prospective areas in the chick blastoderm. (Aves) 

 (in collaboration with C. M. FRANCHI) 



d. Enzymes in the development of the embryo. Chick and pig (Aves and 

 Mammalia) (in collaboration with R. E. GONZALEZ MARINO and 

 Miss J. ALVAREZ GUTIERREZ) 



BURDON— JONES, C. B.Sc, — Dept of Zool., Univ. Coll. of N. Wales, 



BANGOR, Caernarvonshire, Great Britain, 

 a. Embryology of British Enteropneusta. 

 BURNS, R. K. B.S., Ph.D., Member — Dept of Embryol., Carnegie Inst. 



of Washington, Wolfe and Madison Strs, BALTIMORE 5, Md, U.S.A. 

 a. The experimental control of sex differentiation in the embryo by means 



of hormones. Didelphys virginiana (Marsupialia) 

 BURR, H. S. Dr, Prof. — Sterling Hall of Med., Yale Univ., 333 Cedar 



Str., NEW HAVEN 11, Conn., U.S.A. 



(no data received) 

 BUTLER, E. G. Ph.D., Sc.D., Prof. — Dept of Biol., Princeton Univ., 



PRINCETON, N.J., U.S.A. 



a. A study of the mechanics of the formation of the regeneration blastema. 

 The influence of nerves on blastema formation. Regression in nerveless 

 non-regenerating limbs. Amblystoma punctatum and Ambl. opacum 



b. Blastema formation and regeneration in urodele limbs in which proximo- 

 distal polarity has been reversed. Amblystoma punctatum and Ambl. 

 opacum (Amphibia) 



