a. Reagregation d'embryons dissocies. Ambystoma mexicanum, Pleurodeles 



Waltlii, Rana temporaria (Amphibia) 

 BIER K. Dr. rer. nat. — Zool. Inst, der Univ. Wiirzburg, Rontgenring 10. 



WURZBURG, Deutschland 

 a. Cytologisch-histochemische Untersuchungen iiber das Wachstum der 



Oocyten in Beziehung zur Embryonal- und Postembryonalentwicklung. 



Daphnia spec. (Cladocera, Crustacea), Calliphora erythrocephala (Dip- 



tera) 

 BIJTEL, Miss J. H. Dr. Sci., M.D., M.I. I.E. — Dept. of Anat. and Embryol., 



State Univ., Oostersingel 69, GRONINGEN, Holland 



a. Experiments concerning the factors which determine the normal course 

 of the outgrowing pronephric duct. Ambystoma mexicanum, Triturus 

 taeniatus, Xenopus laevis (Amphibia) 



b. Development and phylogenetic origin of the columella auris. Ambystoma 

 mexicanum, Triturus taeniatus, Xenopus laevis (Amphibia) 



c. Development of the naso-lacrimal duct. Xenopus laevis (Anura) 



d. Development of the naso-lacrimal duct. Mus musculus albinus (Rodentia) 



e. Development of the corpus callosum. Felis domestica (Carnivora), Mus 

 musculus albinus (Rodentia) 



BILEWICZ, S. Dr.Phil, Prof. — Zaklad Embriol. U.W., Krakowskie 



Przedmiescie 26/28, WARSZAWA, Poland 

 a. Experimental study on the genesis of superfoetation. Mus musculus alb. 



(Rodentia) 

 BILLETT, F. S. B.Sc, Ph.D. — Dept. of Zool. and Comp. Anat., Univ. Coll. 



London, Gower St., LONDON W.C. 1, England 

 a. Morphogenetic effects of desoxyribonucleic acid. Ambystoma mexicanum, 



Xenopus spec. (Amphibia) 

 BILLINGHAM, R. E. M.A., Ph.D., D.Sc. — Wistar Inst, 36th St. at 



Spruce, PHILADELPHIA 4, Pa., U.S.A. 



a. Acquired tolerance and its role in tissue transplantation. Mus spec, 

 Rattus spec, (various inbreed strains) (Rodentia) 



b. Hair neogenesis in antlers. Common Virginia deer (Artiodactyla) 

 BIRGE, W. J. B.A., M.S., Ph.D. — Dept. of Zool., Oregon State Coll., 



CORVALLIS, Ore., U.S.A. 

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

 Wolfe and Madison Sts., BALTIMORE 5, Md., U.S.A. 



a. Physiology and metabolism of spermatozoa. (Mammalia) 



b. Intra-tubal factor influencing sperm motility and transport. (Mammalia) 



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

 malia) 



BISHOP, M. W. H. M.A., Ph.D. — Roy. Veter. Coll., Royal College St., 

 LONDON N.W. 1, England 

 a. Investigations on gametes, gametogenesis, fertilization and early develop- 

 ment. (Mammalia) 



BLACK R. E. L. B.A., Ph.D. — Dept. of Embryol., Div. of Biol, Calif. 

 Inst, of Technol., PASADENA 4, Cal., U.S.A. 



a. Antigens in marine embryos. ( Echinodermata) 



b. Metabolism of marine embryos. (Gephyrea, Echinodermata) 

 BLACKLER, A. W. C. B.Sc, Ph.D. — Dept. of Zool. and Comp. Anat., 



The Univ. Museum, OXFORD, England 



17 



