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



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

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



— Dept. of Biol., Johns Hopkins Univ., Charles and 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. Callus 

 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) 

 c Spatial organization and supracellular patterns in embryonic tissues. Gallus gallus (Aves) 

 DELLA CROCE, N. Dr.Nat.Sci., Prof. — 1st. di Zool., Univ. di Genova, Via Balbi 5. 



GENOVA, Italia 

 a Embryo development of a parthenogenetic marine form. Peniha avirostns (Uadocera. 



Crustacea) (in collaboration with Mrs. S. BETTANIN-BELGRANO) 

 b Development of the sexual forms. Penilia avirostris (Cladocera, Crustacea) (in collabora- 

 tion with Mrs. S. BETTANIN-BELGRANO) 

 DELMAS, A. Prof. — Lab. d'Anat., Fac. de Med., 45 Rue des Sts.Peres, PARIS Vie. 



France 

 a Developpement de I'encephale. Homo sapiens (Primates) 



h Developpement anormal de I'encephale et des organes des sens. Mus rattus (Rodentiaj 

 DeLONG G R. M.D. — Dept. of Neurol., Massachusetts General Hosp.. BOSTON, Mass. 



20015', U.S.A. , ^ , , , 



a Development of retino-tectal connections; reaggregation studies of retinal local specihcity. 

 Gallus domesticus (Aves) -it/^-nt 



DELSOL, M. Dr.es Sci., Prof. — Dept. de Biol. Gener., Fac. CathoL, 25 Rue du Plat, LYON 



2e, France 

 DELYE (ROLLIN), Mrs. P. M. Lic.es Sci. — Lab. de Biol. Anim., Fac. des Sci., 1 Place 



Victor Hugo, MARSEILLE 3e, France 

 DeMAGGIO, A E. Ph.D. — Dept. of Biol. Sci., Dartmouth Coll., HANOVER. N.H. 



03755, U.S.A. 

 a Experimental developmental morphology. (Plantae) 



DE MEIO, R. — Inst, de Biol. Celular, Univ. Nac. de Cordoba, Casilla Postal 362, CORDO- 

 BA, Argentina 

 DENIS, H. A. Dr.es Sci. — Lab. de Biochim., Fac. des Scis., Univ. de Liege. 17, Place Dei- 



cour, LIEGE, Belgique 

 a Etude du role des acides nucleiques dans la differenciation embryonnaire. Xenopus laevis 



(Anura) 

 DENIS, Miss S. Lic.Sci.Zool. — Lab. de Morphol. anim., Univ. libre de Bruxelles, 67, Rue 



des Chevaux, RHODE-ST-GENESE. Belgique 

 a Studies on the metabolism of lethal hybrids. (Echinoidea; Amphibia) 

 DENNE. M. p. Ph.D. — Plant Physiol. Div., Dept. of Scient. and Industrial Research, 



PALMERSTON NORTH, New Zealand 

 DENT, J N. Ph.D., Prof. — Dept. of Biol, Univ. of Virginia, Gilmer Hall. CHARLOTTES- 

 VILLE, Va. 22903, U.S.A. 

 a Metamorphic physiology and morphology of a trogloditic form. (Urodela) 

 h Development of the immune response. (Urodela) ,-,r ^ i 



DEOL. M. S. Ph.D. — Dept. of Genet., Univ. Coll. London, Cower St., LONDON W.C.I, 



England 

 DEPARIS, P. Dr.en Biol. — Lab. de Biol, gener., Fac. des Sci., 118 Route de Narbonne, 



31 -TOULOUSE, France 

 a Hematopoiese. (Urodela) „ , t^ nunrc 



DfiPECHE, J. — Lab. d'Evolution des Etres Organises, Fac. des Sci., 105 Bd. Raspail, PARIS 



6e, France 

 a Physiological investigations on embryos of viviparous forms developing in vitro. 

 Poecilia reticulata (zzLebistes reticulatus), Xiphophoms helleri, Gambusia affinis, Hetecan- 

 dvia formosa (Poeciliidae, Teleostei) 

 DEROM, R. M. J. M.D., Ph.D. — Dept. of Obstetr. and Gynecol., Fac. of Med., Univ. Hosp., 



De P'intelaan, GENT, Belgium 

 a Anaerobic metabolism in the fetus (determination of blood lactate and pyruvate; calculation 



of "excess lactate"). Homo sapiens (Primates) 

 h Longitudinal study of uniovular twins (determination of genotype based on structure of 

 placental membranes and on 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 

 a Enzyme histochemistry of the developing kidney. Rattus norvegicus (Rodentia) 

 DESCAMPS, P. Dr.en Med. — Lab. dHistol.-Embryol. B, Fac. de Med. de Paris. 45 Rue 



des Sts.Peres, PARIS Vie, France 

 a Abnormalities in the development of the genitourinary tract. Homo sapiens (Primates) 



40 



