a Developmental morphology of tropical and subtropical marine forms (embryogenesis and 



organogenesis through metamorphosis). Bursa caelata. Distorsio clathrata, Batillaria minima. 



Bittiiim varium (Gastropoda) , Chione cancellafa, Codakia orbicularis, Atrina rigida (Lamel- 



libranchiata). Clypeaster rosaceus (Echinoidea) 

 DASGUPTA. B. Ph.D., Prof. — Dept. of Zool.. Darjeeling Government Coll., North Bengal 



Univ., P.O. DARJEELING, W.Bengal, India 

 a Reproduction and development. Raydla cayi, Hepatocystis spec. (Haemosporidia. Sporozoa) 

 DAUGERAS. Miss N. — Lab. d'Anat. Comp.. Fac. des Sci. d'Orsay, Univ. de Paris, Bati- 



ment 441, 91-ORSAY, France , 



a Etude expcrimentale de I'apparition du glycogene hepatique chez 1 embryon. Gallus 



domes ficiis (Aves) 

 DAUWALDER (RICHARDS). Mrs. M. Ph.D. — Cell Research Inst., B.L. 220. The Univ. 



of Texas at Austin, AUSTIN, Tex. 78712, U.S.A. 

 a The development of tissues during embryogenesis with special reference to the differen- 

 tiation of the Golgi apparatus and its activity in the secretion of specialized cell walls 



(electron microscopy, radioautography and EM enzyme cytochemistry). Zea mays 



(Gramineae) 

 b Cell wall formation during mitosis. Zea mays (Gramineae) 

 c Cleavage with emphasis on RNA metabolism and nucleolar changes. Helix aspersa (Pul- 



monata. Gastropoda) 

 d The differentiation of the Golgi apparatus during differentiation of specialized cell types. 



Helix aspersa (Pulmonata, Gastropoda) 

 DAVENPORT, R. Ph.D. — Dept. of Zool., Univ. of lUinois, URBANA, 111. 61801, U.S.A. 

 a Electrophoretic and immunophoretic analysis of basic proteins during early embryonic 



development. Strong ylocentrotus purpuratus, Lytechinus variegatus (Echinoidea), Ciona 



intestinalis , Ascidia nigra (Tunicata ) 

 DAVID (BOGLI). Mrs. D. Lic.es Sci. — Lab. de Biol. Anim., 1 Av. Vercingetorix. 63 



CLERMONT FERRAND, France 

 a Organogenese de I'estomac embryonnaire. Oryctolagus cuniculus (Lagomorpha) 

 DAVID, G. Dr.en Med.. Prof. — Lab. d'Histol.-Embryol. A, Fac. de Med., 45 rue des Sts. 



Peres, 75 PARIS Vie, France 

 a Facteurs Rhesus. Homo sapiens (Primates) 

 h Incompatibilites foeto-maternelles. Oryctolagus cuniculus (Lagomorpha), Ratfus spec. 



(Rodentia) 

 DAVID, G. B. Ph.D. — Dept. of Biophys., Manhattanville Inst., Columbia Univ., 632 W. 



125th St., NEW YORK. N.Y. 10027, U.S.A. 

 DAVIDOVA, S. I. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, 



MOSCOW B-133. U.S.S.R. 

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



during maturation. (Acipenseridae, Chondrostei; Amphibia) (in collaboration with Mrs. 



T. A. DETTLAFF) 

 DAVIDSON, E. H. Ph.D. — Rockefeller Univ., 66th St. and York Ave.. NEW YORK, 



N.Y. 10021, U.S.A. 

 a Study of gene activity in oogenesis, the species and function of nucleic acids produced 



in lampbrush stage oocytes. Xenopus laevis (Anura) (in collaboration with Mrs. B. R. 



HOUGH-RAYMOND) 

 b Study of the molecular basis of cytoplasmic prelocalization. Ilyanassa obsoleta (Gastropoda) 



(in collaboration with Mrs. B. R. HOUGH-RAYMOND) 

 DAVIES, D. V. D.Sc. Prof. — Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON 



S.E.I, England 

 a Development of joints. (Mammalia) 

 h Placentation. (Vertebrata) 

 DAVIS, Ch. C. Ph.D., Prof. — Dept. of Biol., Mem. Univ. of Newfoundland, ST. JOHN'S, 



Newfoundland, Canada 

 DAVIS, G. R. F. Ph.D. — Research Station, Research Branch, Canada Agriculture, Univ. 



Campus, SASKATOON, Sask., Canada 

 a The quantitative and qualitative requirements of immature stages for amino acids and the 



intermediary metabolism of these amino acids. Oryzaephilus surinamensis (Silvanidae, 



Coleoptera), Melanoplus sanguinipes (Acrididae, Orthoptera), Ctenicera destrucor (Elat- 



eridae, Coleoptera) 

 h The effects of anti-metabolites on development and morphology. Oryzaephilus surinamensis 

 (Silvanidae, Coleoptera), Melanoplus sanguinipes (Acrididae, Orthoptera), Ctenicera de- 

 structor (Elateridae, Coleoptera) 

 DAVIS. L. V. Ph.D. — Dept. of Zool., Univ. of Hawaii, 2538 The Mall, HONOLULU, 



Hawaii 96822, U.S.A. 

 DAWES, C. M. B.Sc. — Dept. of Physiol, and Biochem., Univ. of Reading, READING. 



Berks., England 

 a Study of the methods by which the developing embryo is able to control the acid-base 



status of its blood under normal and experimental conditions. Gallus domesticus (Aves) 



43 



