Braa 16 Brien 



BRAAMS, W. G. — Zool. Lab. der Rijks Univ., Janskerhof 3, UTRECHT. 

 Holland, 

 a. Analysis of lithium action. Limnaea stagnalis (Gastropoda) (in colla- 

 boration with A. C. J. BURGERS. P. F. ELBERS. W. L. M. GEILEN- 

 KIRCHEN, J. ISINGS, Miss T. C. M. KOEVOETS. Chr. P. RAVEN, 

 G. SCHOLTEN and M. VROMAN) 



BRACHET, J. L. A. M.D., Prof. — Lab. de Morphol. anim., Univ. libre 

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

 Belgique. 



a. Studies on the metabolism of letal hybrids. (Amphibia) 



b. Action of dinitrophenol and usnic acid on development. (Amphibia) 



c. Cytochemical observations on the first stages. (Amphibia) (in colla- 

 boration with J. J. PASTEELS) 



BRADEN, A. W. H. B.Sc. — Commonwealth Sci. and Industr. Res. Org., 

 McMaster Anim. Health Lab., Parramatta Rd, Glebe, SYDNEY, 

 N.S.W., Australia. 



a. Investigation of fertilization and spermatogenesis with phase-contrast 

 microscopy. Mus rattus (Rodentia) (in collaboration with C. R. 

 AUSTIN) 



b. Chemical and physical factors involved in the sperm penetration of the 

 zona pellucida. Mus rattus and Oryctolagus cuniculus (Rodentia) (in 

 collaboration with C. R. AUSTIN) 



c. Development of blastocysts and isolated blastomeres after transplan- 

 tation. Induction of parthenogenesis. Investigations on the external 

 migration of gametes. Oryctolagus cuniculus (Rodentia) (in collaboration 

 with C. R. AUSTIN) 



BRAMBELL, F. W. R. D.Sc, F.R.S. — Dept of Zoology. University 



College of North Wales, BANGOR, Caernarvonshire, N. Wales 



(U.K.) 

 a. Immunological relations of mother and young. Oryctolagus cuniculus 



(Rodentia) 

 BRANDT, W. M.D., Ph.D. — Dept of Anat., Med. School, Hospitals 



Centre, BIRMINGHAM 15, England (U.K.) 



a. Development of malformations of limbs. (Amphibia) 



b. Investigations on pathological development. (Amphibia) 



c. Biotypology of man. Homo (Primates) 



BRETSCHER. A. Dr Phil. II — Abt. fur Zoophysiol., Zool. Inst, der Univ.. 

 Sahlistr. 8, BERN, Schweiz. 

 a. Development of the leg; Polydactyly. Gallus domesticus (Aves) 

 h. Development of the leg; influence of colchicine. Gallus domesticus (Aves) 



c. Development of the leg; influence of the epidermis. Gallus domesticus 

 (Aves) 



d. The development of skeleton and muscles of the pelvic-girdle and hind 

 limbs. Xenopus laevis (Anura) (Normal Table) 



BRETSCHNEIDER, L. H. — Zool. Lab., State Univ. of Utrecht, Fac. of 



Sci., Janskerkhof 3, UTRECHT, Holland, 

 a. Electron microscopical investigation on differentiation, insemination, 



growth and differentiation of the egg. Limnaea stagnalis (Gastropoda) 

 BRIEN, P. L. Dr, Prof. — Lab. de Zool., Fac. des Sci., Inst, de Zool. 



Torley-Rousseau, Univ. libre de Bruxelles, 50 Av. F. D. Roosevelt, 



BRUXELLES, Belgique. 



