d Reproduction and embryology of wild animals. (Mammalia) 



• BIJTEL. Miss J. H. Dr.Sc. M.D. — Dept. of Anat. and Embryol, State Univ. of Gronin- 

 gen, Oostersingel 69, GRONINGEN, Netherlands 



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), Mus musculus (Rodentia) 



BILLETT, F. S. Ph.D. — Dept. of Zool.. Univ. of Southampton. SOUTHAMPTON, 

 Hampshire, England 



a Effect of nucleic acid "anti-metabolites" on early development. Ambystoma mexicanum 

 (Urodela), Gallus spec, Coturnix spec. (Aves) 



h Cytology of embryonic epidermis. (Amphibia) 



BILLINGTON, W. D. Ph.D. — Dept. of Zool., Univ. of Oxford, Parks Road, OXFORD, 

 England 



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

 (Rodentia) 



BIRCH (ANDERSEN), A. — State Serum Inst., Amagerboulevard 80, COPENHAGEN 

 S, Denmark 



a The ultrastructure of normal and pathological sperm. Bos taurus (Artiodactyla) (in colla- 

 boration with E. BLOM, State Veter. Serum Lab.) 



BIRGE, W. J. Ph.D., Prof. — Div. of Sci. and Mathemat., Univ. of Minnesota, MORRIS, 

 Minn. 56267, U.S.A. 



a Ultrastuctural differentiation of the endoplasmic reticulum and the Golgi complex. Gallus 

 domesticus (Aves) 



b Correlated histochemical and ultrastructural studies of the differentiating choroidal epithe- 

 lium. Gallus domesticus (Aves) 



c Ultrastructural organization of cilia and basal bodies of the choroid plexus. Gallus domesti- 

 cus (Aves) 



d Ultrastructural differentiation of the epithehal junctional complex. Gallus domesticus 

 (Aves) 



e Studies of the effect of in vitro storage upon the integrity of the genetic material 

 (DNA) of spermatozoa. Bos taurus (Artiodactyla) 



BIRKY, C. W.. Jr. Ph.D. — Dept. of Zool., Univ. of California, BERKELEY, CaUf. 94720, 

 U.S.A. 



a The synthesis of RNA, protein, and mitochondrial DNA in nurse cells and embryos, and 

 the transfer of these materials from nurse cells to the maturing oocyte (light and electron 

 microscope autoradiography). Asplanchna brightwelli. A. sieboldi (Rotifera. Aschelmin- 

 thes) 



BISHOP, D. W. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W. 

 University Parkway, BALTIMORE, Md. 21210, U.S.A. 



a Contractile protein and contractile mechanisms of spermatozoa. (Mammalia) 



b Testicular enzymology. (Mammalia) 



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



BISHOP, M. W. H. Ph.D. — Dept. of Anim. Husbandry, Univ. of Bristol, Langford House, 

 Langford, BRISTOL, England 



o BISHOP (CALAME), Mrs. S. M. Lic.es Sci. — Dept. of Poultry Husbandry, Univ. of 

 Cahfornia, DAVIS, Calif. 95616, U.S.A. 



BLACK, R E. Ph.D., Prof. — Dept. of Biol., Coll. of William and Mary. WILLIAMS- 

 BURG, Va. 23185, U.S.A. 



a Use of isotopes to trace metabolic pathways in embryos, (marine Invertebrata) 



h Development of enzymes related to Krebs cycle in embryos, ('marine Invertebrata) 



BLACKLER, A. W. Ph.D., Prof. — Div. of Biol.Sci., 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) 



BLAKE, J. A. M.S. — Ira C. Darling Center (Marine Laboratory), Univ. of Maine, WAL- 

 POLE, M. 04513, U.S.A. 



a Descriptive morphology of larval development from egg through metamorphosis. Polydora 

 ligni, P. socialis, P. websteri (Sedentaria, Polychaeta) 



BLANCHET, J. P. Lie. es Sci. — Section de Biol, generale et appliquee, Fac. des Sci., Univ. 

 de Lyon, 43, Bd. du 11 Novembre 1918, 69-VILLEURBANNE, France 



a Evolution des deshydrogenases lactiques au cours de 1 erythropoiese embryonnaire. Gallus 

 domesticus (Aves) 



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

 ton. SEATTLE 5, Wash., U.S.A. 



BLAXTER, J. H. S. M.A. — Dept. of Nat. History, Marischal College, Univ. of Aberdeen. 

 ABERDEEN, Scotland, U.K. 



a Rearing of larvae. Clupea pilchardus (Teleostei) 



20 



