DRAGOMIROV, N. I. Dr.biol.sci., Prof. - A.N.Severtzov Inst, of Anim. Evol. Morphol. and Ecol., 



Acad, of Sci. of the USSR, Lenin Ave.33, MOSCOW 1 17071, U.S.S.R. ISDB 



a The organogenesis gradients in the hyoideo-mandibular section of the lateral sensory system. 



Acipenser guldenstadtii, A. ruthenus (Chondrostei) 

 DRUGA (PUSZTASZERI), Mrs. A. M.D. - Res. Inst, for Pharm. Chem., P.O.Box 82, BUDAPEST, 



IV.Ujpest, 1436 Hungary 

 a Teratogenetic effect of chemicals, especially drugs containing the piperazin ring. Rattus rattus 



(Rodentia) 

 b The importance of the praedifferentional stage in teratogenesis. Same species as a 

 DRUGA, R. MUDr. - Dept. of Anat., Charles Univ., U nemocnice 3, 12800 PR AH A 2, Czecho- 

 slovakia 

 a Prenatal morphological development of basal ganglia. Felis domestica (Camivora), Rattus 



norvegicus (Rodentia), Oryctolagus cuniculus (Lagomorpha) 

 DRUKKER, J. Ph.D. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTER- 



DAM-O., Netherlands 

 a Descriptive and experimental studies of the developing central and peripheral nervous system. 



Gallus domesticus (Aves) 

 b Histochemical characteristics of developing chemoreceptor organs. Oryctolagus cuniculus (Lago- 

 morpha), Mus musculus, Rattus norvegicus (Rodentia) 

 c Embryology of the endocrine cells of the pancreas. Same species as a 

 DUBENDORFER, A. Dr.phil.II - Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, 8006 



ZURICH, Switzerland 

 a Determination and cell lineage in imaginal discs. Musca domestica (Diptera) 

 b Tissue culture. (Insecta) 

 DUBOIS, R. Dr. - Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabnelle, 



94130 NOGENT-sur-MARNE, France 

 a Lignee germinale et morphogenese sexuelle. Gallus gallus (Aves) (avec D. CUMINGE) 

 b Biosynthese glycoproteique dans les ebauches gonadiques (topochimie, cinetique). Gallus gallus 



(Aves) 

 c Effets des lectines sur l'amiboidisme des cellules germinales. Gallus gallus (Aves) 

 d Aspects discontinus du renouvellement dans les systemes biologiques a cloisonnement anato- 



mique complexe. Gallus gallus (Aves) 

 DUKE, E. J. Ph.D. - Zool. Dept., Univ. Coll., Belfield, Stillorgan Rd., DUBLIN 4, Ireland 

 a Molecular basis of drug-sensitivity and resistance during development of inbred lines (especially 



5-fluorouracil, streptomycin, cytosine arabinoside). Drosophila melanogaster (Diptera) 

 b Genetic and epigenetic mechanisms governing the expression of aldehyde oxidase and xanthine 



dehydrogenase in developmental stages. Locusta migratoria (Orthoptera) 

 DUNCKER, H. R. Dr.rer.nat., Dr.med., Prof. - Anat. Inst, der Univ., Friedrichst. 24, 63 GIESSEN, 



B.R.D. (Germany) 

 a Embryological and post-hatching development of the lung-air sac system, especially the 



number and arrangement of secondary bronchi and parabronchi, and the parabronchial blood - 



air capillary network. Columba spec, Gallus spec, Anas spec, Melopsittacus spec, Turdus spec, 



Passer spec, Taeniopygia spec, and others (Aves) 

 DUNN, G. A. Ph.D. - Strangeways Res. Lab., Worts Causeway, CAMBRIDGE CB1 4RN, England 

 a Cell relations in tissue culture. Gallus gallus (Aves), Mus musculus (Rodentia) (with M. ABER- 



CROMBIE and C. P. MAGILL) 

 DUPRAT (ESCUDIE), Mrs. A.-M. Dr.es Sci. - Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route 



de Narbonne, 31077 TOULOUSE Cedex, France 

 a Experiments on the differentiation of cultured embryonic cells. (Urodela) (with J. C. 



BEETSCHEN) 

 DUPUIS (CERTAIN), Mrs. Ph. - Lab. d'Embryol., Univ. Paris VI, 4 place Jussieu, 75230 PARIS 



Cedex 05, France 

 a Histochemistry of steroid enzymes. Discoglossus spec. (Anura), Pleurodeles spec. (Urodela) 

 DURAND, J. P. Dr.es Sci. - Lab. Souterrain du C.N.R.S., 09410 MOULIS, France 

 a Experiments on ontogenesis and eye degeneration of cave dwelling forms. (Vertebrata) 

 b Reproduction and development. Hydromantes italicus (Urodela) 

 DURANTE, Miss M. C. D.Sci., Prof. - 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 



PALERMO, Italy 

 DURCHON, M. Prof. - Lab. de Biol. Anim., Univ. des Sci. et Techn. de Lille, B.P.36, 59650 



VILLENEUVE-D'ASCQ, France ISDB 



DURST (ZlVKOVlC), Mrs. B. M.D., D.Sc - Inst, of Histol. and Embryol., Fac of Med., Univ. of 



Zagreb, Salata 3, P.O.Box 166, 41001 ZAGREB, Yugoslavia 

 a Differentiation of the stroma of chorionic villi. Homo sapiens (Primates) 

 DUSPIVA, F. Dr., Prof. - Physiol. Lehrst., Zool. Inst, der Univ., Berlinerst.15, 69 HEIDELBERG, 



B.R.D. (Germany) ISDB 



a Localization of enzymes within the embryo and in subcellular fractions. Acheta domestica 



(Orthoptera), Dysdercus intermedius (Heteroptera) 

 b Protein differentiation, ontogeny of enzyme patterns. Same species as a 



c Energy metabolism and metabolism of nucleic acids, nucleotides, and cofactors during develop- 

 ment. Same species as a 

 d Nucleic acids in oogenesis. Dysdercus intermedius (Heteroptera) 

 DUVAL-BEAUPERE, Mrs. G. - Lab. d'Anat., Univ. Paris V - Rene Descartes, 45 rue des Saints Peres, 



75 PARIS Vie, France 

 DYER, H. McM. B.Sc, M.B., Ch.B. - Dept. of Developm. Biol., Marischal Coll., Univ. of Aberdeen, 



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