PFLUGFELDER. O. Dr.rer.nat, Prof. — Zool. Inst., Naturwissensch. Fak., Hochschule 



Hohenheim, 7 STUTTGART-Hohenhcim, Deutsche Bundesrepublik 

 a Anderung dcs Stoffwcchsels nach Storung des hormonalen Gleichgewichts. (Insccta) 

 b Einfluss der Pinealektomic auf die Postembryonalentwicklung. (Tcleostci) 

 c Histophysiologie der Corpora allata nach cxperimentellcr Beeinflussung. (Insccta) 

 d Wirkungsmechanismen von Thyrcostatika. Rana tcmporaria, Xenopus lacvis (Anura), 



Gallus domcsticus (Avcs) 

 e Biomorphose. 

 PHILLIS. J. W. Ph.D. — Dept. of Physiol., Monash Univ., P.O.Box 92, CLAYTON. 



Victoria, Austraha 

 a Descriptive morphology and histochemistry, and experimental morphology of the cerebel- 

 lum (C.R. length 2 cm until after birth). Felts domestica (Carnivora) 

 PIATAGORSKY, J. Ph.D. — Lab. of Developm. Biol., Sect, on Exper. Embryol., Natl. Inst, 

 of Child Health and Human Developm.. Natl. Inst, of Health, BETHESDA, Md. 20014, 

 U.S.A. 

 a The role of RNA in the development of the lens. Gallus domcsticus (Aves) 

 PIATIGORSKY, J. P. B.A. — Dept. of Devel. Biol., Div. of Biol., California Inst, of 



Technol., PASADENA, Calif. 91109, U.S.A. 

 a Protein synthesis in marine embryos. ( Echinodermata) 



• PIATT, J. Ph.D. — Dept. of Anat., School of Med.. Univ. of Pennsylvania, PHILADEL- 



PHIA, Pa. 19104, U.S.A. 

 PICHERAL, B. Dr.3eme Cycle — Lab. de Biol. Gener., Fac. des Scis., 35-RENNES. France 

 a Nuclear transplantation. (Amphibia) 

 b Spermatogenesis. (Amphibia) 

 PIDDINGTON, R. L. Ph.D. — Dept. of Zool., Biol. Sci. Div., Univ. of Chicago, 1101 East 



57th St., CHICAGO, 111. 60637, U.S.A. 

 a Enzyme development in the embryonic neural retina. Gallus domcsticus (Aves) 

 PIEAU, CI. Lic.es Sci. — Service d'Embrvol. exper. de I'lnst. Pasteur, 20 Rue des Moulins, 



SANNOIS (Val d'Oise), France 

 a Researches upon the mechanisms of sexual differentiation. Cistudo eucopaea, Tesfudo 



graeca (Chclonia) 

 h Researches upon the establishment of urogenital connections and upon the development 



of the cloaca. Anguis fragilis (Lacertilia) (in collaboration with A. RAYNAUD) 

 PIERRO, L. J. Ph.D., Prof. — Dept. of Anim. Genet., Storrs Agric. Exp. Station, Univ. of 



Connecticut, STORRS, Conn. 06268, U.S.A. 

 a Chemical teratogenesis: inhibitors of nucloic acid and protein metabolism. Gallus domcsti- 

 cus (Aues) 

 h Gene interaction in the control of formation of specific melanin granules. Mus musculus 



(Rodentia) 

 c Eye development. Mus musculus (Rodentia) 

 d Developmental genetics. Gallus domcsticus (Aves) 

 PIETRZYK (WALKNOWSKA), Mrs. J. M.Sc. — Dept. of Exper. Zool., Polish Acad, of 



Sci., ul. Kopernika 7, KRAKOW, Poland 

 PIGHILLS, Miss E. B.Sc. — A.R.C. Anim. Breeding Research Organization, King's Buildings, 



West Mains Rd., EDINBURGH 9, Scotland, U.K. 

 a Induction of chimaerism. Rattus norvegicus, Mus musculus (Rodentia). Capra hircus. 



Ovis aries (Artiodactyla) 

 PIGON, A. Ph.D. — Dept. of Zoophysiol., Univ. of Umea, UMEA 6. Sweden 

 a Cell transformation and differentiation. Rana spec. (Anura), Gallus domcsticus (Aves) 



(in collaboration with S. L0VTRUP) 

 PIHAN, J. C. Agr.de Sci. — Lab. de Zool., Fac. des Sci. de Nancy, 30 Rue Ste Catherine, 



54-NANCY, France 

 a Developpement du systeme tracheen chez Tembryon et la larve (etude expcrimentale). 



Tipula flavolineata (Diptera) (en collaboration avec Fr. STfiPHAN) 

 PIJNACKER, L. P. Ph.D. — Genet. Inst.. Rijksuniversiteit, Rijksstraatweg 76, HAREN 



(Gr.), Netherlands 

 a Oogenesis, parthenogenesis, and teratogenesis. Carausius morosus, Sipyloidea sipylus, 



Clonopsis gallica. Bacillus rossii (Phasmidae, Orthoptera) 



• PIK6, L. Ing.Agr., D.V.M. — Dept. of Devel. Biol., Div. of Biol., California Inst, of 



Technol., PASADENA, Calif. 91109, U.S.A. 

 a Fine structure and chemistry of fertilization and early development. (Echinodermata; 



Rodentia) 

 PILLERI, G. Dr.med. — Hirnanat. Inst, der Psychiatr. Univ. Klinik, Med. Fak., Bolligcn- 



strasse 117, 3072 WALDAU/BE, Schweiz 

 a Entwicklung des Gehirns. Castor canadensis (Rodentia) 



b Uber die Protuberantia sclerae am embryonalen Auge. Homo sapiens (Primates) 

 c Ontogenese des Auges. Balaenoptera physalus, B. acutorostrata. Megaptera novae' 



angliae, Delphinus delphis, Tursiops truncatus, Delphinapterus leucas (Cetacea) 

 d Entwicklung der Korperform. Balaenoptera physalus, B. acutorostrata, Megaptera 



novaeangliae, Delphinus delphis. Tursiops truncatus, Delphinapterus leucas (Cetacea) 



119 



