DAWID, I. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W. University 



Parkway. BALTIMORE. Md. 21210. U.S.A. • 



a Deoxyribonucleic acid synthesis during early development. Rana pipiens, Xenopus laevis 



(Anura) (in collaboration with R. F. SWANSON) 

 DEALT, J. MUDr. — Anat. Inst. Univ. Bern, Buhlstr. 26, 3012 BERN, Switzerland 

 a Development of coronary arteries under normal and experimental conditions. Gallus 



domesticus (Aves). Rattus norvegicus (Rodentia) 

 h Heart morphometry. Gallus domesticus (Aves) Rattus norvegicus (Rodentia) 

 DEAN, D. Ph.D., Prof. — Ira C. Darling Center for Research, (Marine Lab.), Univ. of 



Maine. WALPOLE, Me. 04573, U.S.A. 

 a Anterior regeneration. Polydora ligni, Stceblospio benedicti, Pygospio elegans (Sedenfaria, 



Polychaeta) 

 b Reproductive biology. Polydora ligni (Sedentaria, Polychaeta) 

 DEARDEN, M. B.Sc. — Didsbury Coll. of Educ, Wilmslow Rd., MANCHESTER 20, 



England 

 DE BAVAY. J. M. F. X. B.Sc. — Dept. of Zool., Fac. of Sci., Univ. of New England. 



ARMIDALE. N.S.W. 2351, Australia 

 a Normal embryology. Kyacranus sphagnicolus (Leptodacfylidae, Anura) 

 DE BEER, Sir G. R. Prof. — La Colline, 1880 BEX, Switzerland • 



DE BOOM. H. P. A. Prof. — Dept. of Anat.. Fac. of Vet. Sci.. Univ. of Pretoria, P.O. 



ONDERSTEPOORT, South Africa 

 DECK. J. D. Ph.D.. Prof. — Dept. of Anat.. Med. School, Univ. of Virginia, CHARLOT- 

 TESVILLE, Va. 22901, U.S.A. 

 a Cytological changes in regenerating epithelium. Mus musculus (Rodentia) 

 h Cytological changes in muscle after injury. Diemictylus viridescens (Urodela) 

 c Origin and development of cell surface coats. Perophora viridis (Tunicata) 

 DECKER, J. D. Ph.D. — Dept. of Anat., Coll. of Med., Univ. of Missouri, COLUMBIA. 



Mo. 65201, U.S.A. 

 a Development of the otocyjts and their influence on the ontogeny of behavior. Gallus 



domesticus (Aves) 

 h Pre- and postnatal behavior (a film of the behavior during development within the 



marsupium). Didelphis virginiana (Marsupialia) 

 DECROLY (BRIERS), Mrs. M. D.Sci.Chim. — Lab. de Morphol. Anim., Univ. libre de 



Bruxelles. 67. rue des Chevaux, RHODE-ST-GENESE, Brabant, Belgium 

 a Metabolism des acides nucleiques au cours du dcveloppement embryonnaire. Xenopus laevis 



(Anura) 

 b Etude des ribosomes au cours du dcveloppement. Xenopus laevis (Anura) 

 c Mesure de la capacite template des acides ribonuclciques au cours du developpement em- 

 bryonnaire, dans un systeme heterologue et un systeme homologue. Xenopus laevis 



(Anura) 

 DE FABRO, Miss S. P. M.D.. Prof. — Inst, de Biol. Celular, Univ. Nac. de Cordoba, 



Casilla Postal 362, CORDOBA, Argentina 

 DE FEO. V. J. Ph.D., Prof. — Dept. of Anat., Univ. of Hawaii, 1951 East- West Rd.. 



HONOLULU, Hawaii 96822, U.S.A. 

 a Blastocyst-endometrial relationship. (Rodentia) 

 b Decidualization. (Rodentia) 

 De FOSSARD, R. A. Ph.D. — Dept. of Bot., Univ. of New England, ARMIDALE, N.S.W. 



2351, Austraha 

 a Physiology of flower initiation; development of bioassay for floral initiating substances 



based on in vitro culture of defoliated stem tips; histo- and cytochemical study of 



vegetative and reproductive apices. Chenopodium rubrum (Chenopodiaceae) 

 DEGENHARDT, K.-H. Dr.med., Prof. — Inst, fiir Humangenetik und vergl. Erbpathol. der 



Univ., Paul-Ehrhch St. 41, 6 FRANKFURT/Main, W. Germany 

 a Influence of antimetabolites (5-f]uoro-2-deoxycytidine) on pattern formation in early 



primordia of different inbred strains. Mus musculus, Mesocricetus auratus (Rodentia) 

 b Influence of X-irradiation (dosages: 130 r, 65 r, 30 r, 15 r, 7 r) on pattern formation in 



early primordia of embryonic development. Mus musculus, Mesocricetus auratus (Rodentia) 

 c Influences of chemical agents on blastogenesis. (Mammalia) 

 DEGLI ESPOSTI, Miss A. M. Dr. — 1st. di Anat. Comp., Via Belmeloro 8, BOLOGNA 



(103). Italy 

 DeHAAN. R. L. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W. 



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



— Dept of Biol., Johns Hopkins Univ., Charles & 34th Sts., BALTIMORE, Md. 21218. 



U.S.A. • 



a Morphogenetic movements and cell migration associated with embryonic heart formation, 



studied with microsurgical, cinematographic and autoradiographic techniques. Gallus gallus 



(Aves) 

 b Pacemaker formation and the initiation of the heartbeat; regulation of spontaneous activity 



of embryonic heart cells in tissue culture. Gallus gallus (Aves) 



44 



