a Light-microscopical, electron-microscopical, histochemical, physiological and experimental 



teratogenetic studies of heart development in the embryo. Gallus domesticus (Aves) (in 



collaboration with J. DRUKKER, H. M. LAANE and J. A. LOS) 

 BIGGELAAR, J. A. M. v. d. M.Sc. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, 



UTRECHT. Netherlands 

 a Nucleic acid metabolism during early developmental stages. Limnaea stagnalis (Gastropoda) 

 b Synthesis of proteins during early developmental stages. Limnaea stagnalis (Gastropoda) 

 DIGGERS, J. D. D.Sc, Ph.D., Prof. — Div. of Popul. EVynamics, School of Hyg. and Publ. 



Health, The Johns Hopkins Univ., 615 North Wolfe St., BALTIMORE, Md. 21205. 



U.S.A. 

 a Organ culture of fallopian tubes and ovaries. (Mammalia) 

 h Culture and metabolism of eggs. (Mammalia) 



c Oocyte maturation. (Astecoidea). Homo sapiens and other spp. (Mammalia) 

 d Reproduction and embryology of wild animals. (Mammalia) 

 BIJTEL. Miss J. H. Dr.Sc, M.D. — Dept. of Anat. and EmbryoL, State Univ. of Groningen, 



Oostersingel 69, GRONINGEN, Netherlands • 



BILLETT. F. S. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 



5NH, England 

 a Differentiation of embryonic epidermis. Xenopus laevis (Anuca), Ambystoma mexicanum 



(Urodela) 

 b Fine structure of early oocytes, pre-vitellogenic phase. Xenopus laevis (Anura), Am' 



bystoma mexicanum (Urodela) 

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



OXl 3PF, England 

 a Biology of the trophoblast; immunological aspects of mammalian pregnancy. Mus musculus 



(Rodentia) 

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



Denmark 

 BIRGE. W. J. Ph.D., Prof. — Dept. of Zool., Univ. of Kentucky, Funkhouser Bldg., 



LEXINGTON, Ky. 40506. U.S.A. 

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



U.S.A. 

 BISHOP, D. W. Ph.D., Prof. — Dept. of Physiol., Med. Coll. of Ohio at Toledo, P.O.Box 



6190, TOLEDO, Ohio 43614, U.S.A. 

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

 h 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 

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



California, DAVIS, Calif. 95616, U.S.A. • 



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



Va. 23185, U.S.A. 

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

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

 BLACKLER, A. W. Ph.D., Prof. — Sect, of Genet., Developm. & Physiol., Div. of Biol. 



Sci., Stimson Hall, ITHACA, N.Y. 14850, U.S.A. • 



BLAKE, J. A. Ph.D. — Pacific Marine Station. Univ. of the Pacific, DILLON BEACH, 



Calif. 94929. U.S.A. 

 a Reproduction and larval development from egg through metamorphosis in California and 



New England species. Polydora ligni, P. commensalis, P. concharum. P. socialis. P. caul' 



leryi, P. quaddlobata, P. websteri, P. sp. nov., Streblospio benedicti, Prionospio pygmaeus 



(Polychaeta) 

 BLANCHET, J. P. Dr.Spec. — Sect, de Biol. Gen. et Appl., Univ. de Lyon, 43 Bd. du 1 1 



Novembre 1918, 69 VILLEURBANNE, France 

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



domesticus (Aves) 

 BLANDAU, R. J. P h.D. , M.D. — Dept. of Biol. Structure, School of Med.. Univ. of 



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

 BLAXTER, J. H. S. M.A. — Dept. of Nat. Hist., Marischal Coll., Univ. of Aberdeen, 



ABERDEEN, Scotland, U.K. 

 BLECHSCHMIDT, E. Dr.med., o.o.Prof. — Anat. Inst, der Univ., Kreuzbergring 36, 34 



GOTTINGEN, W.Germany 

 a Elektronenmikroskopie des Embryos. Homo sapiens (Primates) 

 BLOCH, D. P. Ph.D., Prof. — Botany Dept. and Cell Research Inst.. Univ. of Texas, 



AUSTIN. Tex. 78712, U.S.A. 

 a Mechanism of histone synthesis and function of histone variants in sperm development. 



Sphaerocarpos donnellii, S. texana (Hepaticae), Mytilus calif ornicus (Lamellibranchia). 



Rehnia spinosa (Katydidae, Orthoptera) 



22 



