PREDA, V. G. M.D., Prof. - Chaire de Biol.-Histol., Inst, de Med. et Pharm., Fac. de Med., 



St. Pasteur 6, CLUJ, Rumania 

 a Influence de la temperature d'incubation sur rimmunomorphologie de l'embryon. Gallus spec. 



(Aves) 

 b Affrontation d'organes embryonnaires et adultes in vitro. Rattus spec. (Rodentia) 

 c Action de l'hormone gonadotrope choriale sur le differenciation sexuelle. Zea mays, Cannabis 



sativa (Angiospermae) 

 d Histochimie et histoenzymologie du foie regenere a un stade tres eloigne de Thepatectomie 



sous-totale (un an). Rattus spec. (Rodentia) 

 PRELIPCEANU, Miss O. ing. - Lab. de Embriol. Norm, sj Parol., Acad, de Stiin^e Med., Centr. de 



Cere. Med., Bd.M.Viteazul 24, TIMISOARA, Rumania 

 a Biochemistry of the embryo. Gallus domesticus (Aves); (Rodentia) 

 PRESLEY, R. M.D., B.Chir. - Dept. of Anat., Univ. Coll., Cathays Park, CARDIFF CF1 1XL, Wales, 



U.K. 

 a Ultrastructure of embryos. Various spp. (Rodentia) 

 b In vitro development of peripheral elements of embryonic autonomic nervous system 



(ultrastructure, histochemistry, pharmacology). Gallus domesticus (Aves), (Rodentia) 

 PRESTIGE, M. C. Ph.D. - Physiol. Dept., Med. School.. Univ. of Edinburgh, Teviot Place, 



EDINBURGH EH8 9AG, Scotland, U.K. 

 a Development of neuromuscular apparatus of hind limb: differentiation of nerve cells, electron 



microscopy of fibres, autoradiographs of neuronal birthday, development of connections, 



possibility of disconnections. Xenopus laevis (Anura) 

 PRESTON, T. M. B.Sc. - Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON 



WC1E 6BT, England 

 a Morphogenesis. Naegleria gruberi (Rhizopoda) 

 PRIESTER, W. de Ph.D. - Zool. Lab., Unit of Cell Biol, and Morphogen., Univ. of Leiden, 



Kaiserstr. 63, LEIDEN, Netherlands 

 a Electron microscopy of developmental stages. Calliphora erythrocephala (Diptera) 

 b Morphological and functional alterations of organelles during development. Calliphora erythro- 

 cephala (Diptera) 

 PRINS, G. H. Drs. - Inst, fur Humangenet., Paul-Ehrlichst. 41, 6 FRANKFURT/Main, B.R.D. 



(Germany) 

 PRITCHARD, D. J. B.S. - School of Biol., Univ. of Sussex, Falmer, BRIGHTON, Sussex BN1 9QG, 



England 

 a The role of cell surface determinants in tissue organization and interaction. Mus musculus 



(Rodentia) 

 b The biochemical basis of abnormalities in eye development. Mus musculus (Rodentia) 

 c In vitro tissue culture. Drosophila melanogaster (Diptera) 

 d Biochemistry of growth factors. Drosophila melanogaster (Diptera) 

 PROPPER, A. Doct.3e Cycle - Lab. de Zool., Univ. de Besancon, Place Marechal Leclerc, 25030 



BESANCON, France 

 a Organogenese de la glande mammaire par la methode des cultures d'organe et des greffes 



embryonnaires; ultrastructure. Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha) 



(avec L. GOMOT) 

 PROTASE (POPPER), Mrs. A. - Chaire de Biol.-Histol., Inst, de Med. et Pharm., Fac. de Med., 



St. Pasteur 6, CLUJ, Rumania 

 a Action de l'hormone gonadotrope choriale sur la croissance et sur la differenciation sexuelle. Zea 



mays, Cannabis sativa (Angiospermae) 

 PRUDHOMME, J. C. Dr.Spec. - Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 



11 Novembre 1918, 69 VILLEURBANNE, France 

 PRZYBYLLOK, Th. Dipl.-Biol. - Inst, fur Entw.physiol., Univ. zu Koln, Gyrhofst. 17, 5 KOLN 41, 



B.R.D. (Germany) 

 a Interaction of plant growth hormones in leaf morphogenesis. Antirrhinum majus (Scrophu- 



lariaceae) 

 b Biochemistry and analytical chemistry of plant growth hormones and their enzymes. Same 



species as a 

 PUCCI (MINAFRA), Mrs. I. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 



PALERMO, Italy 

 PUCCI A, E. Dr.Sci. - Zool. Inst., Univ. of Palermo, Via Archirafi 18, 90123 PALERMO, Italy 

 a RNA synthesis in embryonic development. Ciona intestinalis (Ascidiacea) 

 b Cytoplasmic DNA in eggs. Ciona intestinalis (Ascidiacea) 

 c Biochemistry of the hatching enzyme. Ciona intestinalis (Ascidiacea) 

 PUCCINELLI, Mrs. I. Dr.Nat.Sci. - 1st. di Zool. e Anat. Comp. dell'Univ., Via A.Volta 4, 56100 



PISA, Italy 

 a Development and cytology. (Tricladidea, Turbellaria; Hirudinea) 

 PYLILO, Miss I. V. - Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, 199164 



LENINGRAD, U.S.S.R. 

 a Electron microscopy of regeneration. Bolinopsis infundibulum, Mertensia ovum (Ctenophora) 

 RAAMSDONK, W. van Drs. - Zool. Lab., Univ. of Amsterdam, Plantage Doklaan 44, AMSTER- 

 DAM C, Netherlands 

 RADO (LUSER), Mrs. G. D.Sci. - Inst, of Zool. and Comp. Anat., Univ. of Trieste, Via A. Valerio 



32, 34127 TRIESTE, Italy 

 RADZIKOWSKI, St. M.Sc. - Inst, of Zool., Warsaw Univ., Krakowskie Przedmiescie 26/28, 



WARSZAWA 64, Poland 



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