a. Study on the process of evocation with special reference to diffusion. 

 Tritutus alpestris, Xenopus laevis, Ambystoma spec. (Amphibia) 



b. Lens induction. Xenopus laevis (Amphibia) 



c. Transfer of substances during induction. (Amphibia) 



d. Normal tables of Indian forms. Rana tigrina, R. limnocharis, Bufo mela- 

 nostictus, B, stomaticus (Anura) 



e. Reactivity of Indian forms to various inducing substances. (Ranidae, Bu~ 

 fonidae, Anura) 



f. Development of the vertebral column. Homo sapiens (Primates) (in col- 

 laboration with D. N. GANGULY) 



BRAMBELL, F. W. R. B.A., Ph.D., D.Sc, F.R.S., F.I.I.E., Prof. — Agr. 



Res. Council Unit of Embryol., Dept. of Zool., Univ. Coll. of North 



Wales, BANGOR, Caernarvonshire, Wales 

 a. Immunological relations of mother and young. (Mammalia) 

 BRANDOM, W. F. A.B., M.A., Ph.D. — Zool. Dept., Newcomb Coll., 



Tulane Univ., NEW ORLEANS 18, Louisiana, U.S.A. 



a. Combined heteroploidy and hybridization; chromosome number; gene- 

 dosage studies in polyploid hybrids; tissue and organ architecture in 

 heteroploids; the origin of, and routes to, heteroploidy; species pigment 

 pattern formation; the karyo-plasma problem. Taricha spec. (Urodela) 



b. Interspecific and intergeneric diploid hybridization; studies of the early 

 arrest of development in diploid intergeneric hybrids. Taricha spec, Die- 

 mictylus spec. (Urodela) 



BRATTSAND, R. L. Fil.mag. — Inst, of Zoophysiol., Univ. of Uppsala, 

 UPPSALA, Sweden 

 a. The mechanism of agglutination of spermatozoa. (Mammalia) (in colla- 

 boration with P. E. LINDAHL, N.-O. BODIN, L. O. THUNQVIST, 



E. NORDLING and G. UHLIN) 



BRAUCKMAN, Miss E. S. — Inst, de Biol. Gener. y Embriol. Exper., Casilla 

 de Correos 193, TUCUMAN, Argentina 

 a. Sulphydryl groups during neural tube closure. Gallus domesticus (Aves) 

 BRETSCHNEIDER, L. H. Dr., Prof. — Centrum voor Electronenmicrosco- 

 pie, Janskerkhof 3, UTRECHT, Holland 

 a. Pathogenesis of egg cells. Limnaea stagnalis (Gastropoda) 

 BREWIN, B. I. M.Sc. — Dept. of Zool., Univ. of Otago, DUNEDIN, New 

 Zealand 



a. Embryology and life history of a truly viviparous compound form. Hyp- 

 sistozoa fasmeriana (Ascidia) 



b. The development of larval buds. Hypsistozoa fasmeriana (Ascidia) 

 BRICE, Miss M. C. B.A. — Dept. of Zool., Gibbs Research Labs., Yale 



Univ., NEW HAVEN, Conn., U.S.A. 

 a. The structural role of mesenchyme in the epithelial differentiation of the 

 submandibular gland; in vivo and in vitro studies. Mus musculus 

 (Rodentia) 

 BRIEN, P. L. Dr.Sci.Zool., F.I. I.E., Prof. — Lab. de Zool., Fac. des Sci., 

 Inst, de Zool. Torley-Rousseau, Univ. libre de Bruxelles, 50 Avenue 



F. D. Roosevelt, BRUXELLES, Belgique 



BRIGGS, R. W. Ph.D., M.I.I.E., Prof. — Dept. of Zool., Indiana Univ., 

 BLOOMINGTON, Ind., U.S.A. 

 a. Studies on nuclear differentiation in embryos. Rana pipiens (Anura) 

 (partly in collaboration with T. J. KING) 



21 



