b Longitudinal study of uniovular twins (determination of genotype based on structure ol 



placental membranes and of differences in blood groups; followup on a long term basis). 



Homo sapiens (Primates) 

 DESALU, A. B. O. — Dept. of Anat., Univ. of Ibadan, IBADAN, Nigeria 

 DE SILVA, S. E. N. B.Sc. — Dept. of Biol. Sci., Fac. of Sci., Vidyodaya Univ., Gango- 



dawila, NUGEGODA, Ceylon 

 a Morphological changes in the tail during metamorphosis. Bufo melanostictus (Anura) 

 DESSOUKY D A. M.D., Ph.D. — Dept. of Anat., School of Med., Georgetown Univ., 



3900 Reservoir Rd., N.W., WASHINGTON. D.C. 20007. U.S.A. 

 DESVEAUX (CHABROL), Mrs. J. Lic.es Sci. — Inst. d'Embryol. et Teratol. exper. du 



C.N.R.S., 49bis Av. de la Belle Gabrielle, 94-NOGENT-sur-MARNE, France 

 a Radioactive precursors incorporation in some embryonic tissues. Gallus domesticus (Aves) 

 DE TERRA (WHITTAKER), Mrs. N. Ph.D. — Inst, for Cancer Research, 7701 Burholme 



Ave., PHILADELPHIA, Pa. 19111, U.S.A. 

 a Morphogenesis and nucleo-cytoplasmic interactions studied by microsurgery, histochemistry 



and autoradiography. Stentor coeruleus (Ciliafa) 

 DETTLAFF, Mrs. T. A. Dr.biol.sci., Prof. — Inst, of Developm. Biol., Acad, of Sci. of the 



U.S.S.R.. Vavilov St. 26. MOSCOW B-133, U.S.S.R. • 



a The nature of the specificity of oocyte nuclei in the process of oocyte maturation. 



(Amphibia) 

 h Effect of gonadotropins and changes in the germinal vesicle and in the oocyte cytoplasm 



during maturation. (Acipenseridae, Chondrosfei; Amphibia) (in collaboration with S. I. 



DAVIDOVA, J. G. SCHMERLING, M. N. SKOBLINA, T. B. AISENSTADT) 

 c Time regularities of the maturation process; temperature effect upon maturation processes 



in vivo and in vitro. (Amphibia) (in collaboration with T. RUDNEVA) 

 d Cell division: duration, mechanism, relation to the process of differentiation. Acipenseridae, 



Chondrosfei; Amphibia) 

 DE TURENNE, Miss M. Dr.Spec. — Sect, de Biol. Gener. et Appl., Fac. des Sci. de Lyon, 



43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France 

 a Control of DNA synthesis in the silk gland during the fifth larval instar. Bombyx mod 



(Lepidoptera) 

 DEUCHAJR, Miss E. M. Ph.D. — Anat. Dept., The Med. School, University Walk, 



BRISTOL BS8 ITD, England 

 a Changes in individual cells during processes of neural induction and early differentiation 



studied by tissue culture and biochemical methods. Xenopus laevis (Anura) 

 b Morphogenetic movements and tissue differentiation in primitive streak to somite stages 



studied by cinematography and operations in embryo culture. Rattus norvegicus (Rodentia) 

 DEUTSCH. G. Dr.med. — Centrul de Embriol. Norm. §i Patol., Acad. Republ. Social. 



Romania, Bul.M. Viteazul 24, TIMI§OARA, Rumania 

 a Embryonic and adult kidney metabolism. (Mammalia) 

 h Autoradiography in embryonic tissues. Gallus domesticus (Aves) 



DEVILLERS, Ch. Dr.es Sci., Prof. — Lab. d'Anat. Comp., Fac. des Sci., 7 Quai Saint- 

 Bernard, 75 PARIS 5e, France 

 a Studies on respiration during early stages of egg development. Salmo irideus S. fario 



(Teleostei) (in collaboration with Mrs. M. CHANCONIE-MAURY) 

 b Relationships between respiration and oxidative phosphorylations as shown by the action 



of 2-4 dinitrophenol and some inhibitors of respiration in early stages of egg development. 



Salmo irideus. S. lario (Teleostei) (in collaboration with Mrs. M. CHANCONIE- 

 MAURY) 

 DE VINCENTIIS, M. Prof. — Cat. di Istol. ed Embriol., Univ. di Camerino, CAMERINO, 



Italy • 



DHAINAUT, A. — Lab. de Zool., Fac. des Sci., B.P. 36, 59 LILLE-Distribution. France 

 a Ovogenese; utltrastructure et autoradiographie a haute resolution. Nereis diversicolor, N. 



pelagica (Polychaefa) 

 DHOUAILLY, Miss D. Dr. — Lab. de Zool., Fac. des Sci. de Grenoble, Cedex 53, 38 



GRENOBLE, France 

 a Experimental analysis of the specific differentiation of the neoptile and teleoptile plumage 



in chimaeric combinations between two species. Gallus domesticus. Anas boschas (Aves) 

 b Analysis of the differentiation of supernumerary limb; study of the plumage that develops 



thereon. Gallus domesticus. Anas boschas (Aves) 

 DIAMOND, M. Ph.D., Prof. — Dept. of Anat., Univ. of Hawaii. 1951 East-West Rd., 



HONOLULU, Hawaii 96822, U.S.A. 

 a Sexual differentiation and masculinization. (Mammalia) 

 h Pseudopregnancy. (Mammalia) 

 DiBERARDINO, Miss M. A. Ph.D., Prof. — Dept. of Anat., Woman's Med. Coll. of 



Pennsylvania, 3300 Henry Ave.. PHILADELPHIA, Pa. 19129, U.S.A. • 



a Nuclear, chromosomal and cytoplasmic changes during development. Rana pipiens (Anura) 

 DICK, D. A. T. D.Phil. — Dept. of Anat.. Univ. of Dundee. DUNDEE DDl 4HN. Scotland. 



U.K. 



46 



J 



