BRADEN, A. W. H. M.Sc, Ph.D. — Div. of Animal Physiol., C.S.I.R.O., 

 Ian Clunies Ross Animal Research Lab., Great Western Highway, (P.O. 

 Box 144, Parramatta), PROSPECT, N.S.W., Australia 



a. Fertilization; interaction between sperms; genetic differences in the 

 physiology of the gametes. Mus musculus (Rodentia), Ovis spec. (Attio- 

 dactyla) 



b. Effect of age of gametes on development. Ovis spec, Rattus norvegicus, 

 Oryctolagus cuniculus (Mammalia) 



BRAHMA, S. K. M.Sc, D.Phil., Ph.D. — Chittaranjan Nat. Cancer Res. 

 Center, 37 S. P. Mookerjee Road, CALCUTTA 26, India 



a. Normal tables. Rana tigtina, Bufo melanostictus (Anura) 



b. Reactivity of ectoderm to evocating substances. (Anura) 



c Effects of -SH and SH-inhibitors on development. (Amphibia), Gallus 

 spec. (Aves) (in collaboration with R. K. NEOGY) 

 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. — Dept. of Zool., 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, 

 Diemictylus spec. (Urodela) 



c Histochemistry of lethal hybrid embryos. Taricha spec, Diemictylus 

 spec, Triturus spec. (Urodela) 

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

 de Correos 193, TUCUMAN, Argentina 



— temporarily: Inst, of Animal Genet., Univ. Dept. of Genet., King's 

 Buildings, West Mains Road, EDINBURGH 9, Scotland 



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



b. Biochemistry of neural tube closure. Bufo arenarum (Anura), Triturus 

 spec. (Urodela) 



c Effect of -SH groups on morphogenesis. Triturus alpestris, Xenopus 



laevis (Amphibia) 

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



pie, Janskerkhof 3, UTRECHT, Netherlands 

 BREWIN, Miss B. I. M.Sc, D.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) 

 c Development of colonial buds. Hypsistozoa fasmeriana (Ascidia) 



BRIEN, P. L. Dr.Sci.Zool., F.I.I.E., Prof. — Lab. de Zool. syst. et de Biol, 

 anim., Fac des Sci., Inst, de Zool. Torley-Rousseau, Univ. libre de 

 Bruxelles, 50 Avenue F. D. Roosevelt, BRUXELLES, Belgique 



a. Determinisme de la gametogenese. Hydra spp. (Hydroidea) 



b. Formation et signification des sacs gazeux. (Dipnoi) 



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