BILLETT F. S. B.Sc, Ph.D. — Dept. of Biol, as Applied to Med.. Middle- 

 sex Hosp. Med. School LONDON W. 1 , England 



a. Morphogenetic effects of desoxyribonucleic acid. Ambystoma mexica- 

 num. Xenopus spec. (Amphibia) 



b. Effect of nucleic acid "anti-metabolites" on early development. Gallus 

 spec, Coturnix spec. (Aues) 



BILLINGTON. W.D. B.Sc, Ph.D. — Dept. of Zool.. Parks Rd., OX- 

 FORD, England 

 a. The invasive, hormonal, and immunological properties of the trophoblast. 

 Mas musculus (Rodentia) 

 BIRGE. W. J. B.A., M.S., Ph.D.. Prof. — Univ. of Minnesota, MORRIS, 



Minn., U.S.A. 

 BISHOP D W. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington. 

 11 5' W. University Parkway, BALTIMORE, Md. 21210, U.S.A. 

 a. Contractile protein and contractile mechanisms of spermatozoa. (Mam- 

 malia) 

 h. Development of immunologic capacity. Cavia spec. (Rodentia) 

 c Immunologic impairment of spermatogenesis. Cavia spec. (Rodentia) 

 BISHOP, M. W. H. M.A., Ph.D. — Dept. of Animal Husbandry. Univ. of 

 Bristol, Langford House, Langford, BRISTOL, England 

 a. Investigations on gametes, fertilization and early development. (Mam- 

 malia) 

 BISHOP (CALAME), Mrs. S. M. Lic.es Sci. — Inst. d'Embryol. ct 

 Teratol. exper. du C.N.R.S., 49bis Avenue de la Belle Gabrielle, 

 NOGENT sur Marne (Seine), France — Lab. d'Embryol. exper. du 

 Coll. de France, 1 1 Place Marcelin Berthelot, PARIS Ve, France 

 a. Organogenese du systeme urogenital. Gallus gallus (Aves) 

 h. Culture in vitro du metanephros. Gallus gallus (Aves) 

 BLACK, R. E. B.A.. Ph.D., Prof. — Dept. of Biol, Coll of William and 

 Mary, WILLIAMSBURG, Va., U.S.A. 

 a. Use of isotopes to trace metabolic pathways in embryos, (marine Inver- 



ttbrata) 

 h. Development of enzymes related to Krebs cycle in embryos, (marine 

 Invertebrata) 

 BLACKLER, A. W. B.Sc, Ph.D., Prof. — Dept. of Zool, Cornell Univ.. 

 ITHACA. N.Y. 14850, U.S.A. 

 a. Causal analysis of formation and differentiation of sex cells. Xenopus 



laevis, Rana spp. (Anura) 

 h. Nucleo-cytoplasmic relationships. Xenopus spp., Rana spp. (Anura) 

 BLANDAU, R. J. Ph.D., M.D. — Dept. of Biol. Structure, School of Med., 

 Univ. of Washington, SEATTLE 5, Wash., U.S.A. 



a. Mechanisms of ovulation. 



b. Mechanisms of implantation. 



c Tissue culture of granulosa cells. 



d. Primordial germ cells. Mus spec, Cricetus spec, Cavia spec. (Roden- 

 tia) 

 BLAXTER, J. H. S. M.A. — Dept. of Natural Hist., The Univ., ABER- 

 DEEN, Scotland 

 a. Rearing of larvae. Clupea pilchardus (Teleostei) 



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