Fak., Universitat Hohenheim, 7 STUTTGART 70, B.R.D. (Germany) 

 a Anderung des Stoffwechsels nach Stoning des hormonalen Gleichgewichts. (Insecta) 

 b Histophysiologie der Corpora allata nach experimenteller Beeinflussung. (Insecta) 

 c Biomorphose 



d Embryologie. Dactylopius coccus (Coccina, Homoptera) 

 e Entwicklung des Genitalapparates. (Insecta) 

 PICAUD, J. L. - Lab. de Physiol, et Genet, des Crustaces, Univ. de Poitiers, 40 av. du Recteur Pineau, 



86022 POITIERS, France 

 a Cycle sexuel et son controle. Ligia spec, Porcellio spec. (Isopoda, Crustacea) 

 PICOUET, Miss M. J. - Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75005 PARIS, France 

 a Development of the optic tracts and optic centres. (Anura) (with P. CLAIRAMBAULT) 

 PIEAU, CI. Lic.es Sci. - Serv. d'Embryol. Exper., Inst. Pasteur, 20 rue des Moulins, 95110 



SANNOIS, France 

 a The mechanism of sexual differentiation. Cistudo europaea, Testudo graeca (Chelonia) 

 b Effects of x-rays on embryonic development. Lacerta viridis, Anguis fragilis (Lacertilia) (with 



J. VASSE) 

 c The mechanisms of arrest of the elongation and of degeneration of Mullerian ducts in male 



embryos. Lacerta viridis (Lacertilia), Cistudo europaea (Chelonia) (with A. RAYNAUD) 

 d Effects of temperature on genital system development (histoenzymology, gonadal hormones). 



Cistudo europaea (Chelonia) 

 PIHAN, J. C. Agr.de Sci., Dr.es Sci. - Lab. de Zool., Univ. de Nancy I, Case Off. 140, 54037 



NANCY Cedex, France 

 a Ultrastructure des cellules tracheennes larvaires et des tracheoblastes; morphogenese des 



tracheoles. Calliphora erythrocephala (Diptera) 

 b L'intensite de la glycolyse anaerobie pendant la nymphose. Same species as a 

 PIJNACKER, L. P. Ph.D. - Genet. Inst., State Univ., Biol. Centrum, Kerklaan 30, Postbus 14, 



HAREN (Gr.), Netherlands 

 a Oogenesis, spermatogenesis, spermiogenesis, fertilization, and parthenogenesis. Carausius morosus 



(Phasmida); (Acari, Arachnida) 

 b Quantitative cytochemistry, also in relation to differentiation. Same species as a 

 PILLERI, G. Dr.med., Prof. - Brain Anat. Inst., Untere Zollgasse 71, (Waldau), 3072 OSTERMUN- 



DIGEN-BE, Switzerland 

 a Entwicklung des Gehirns. Castor canadensis (Rodentia) 

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

 c Ontogenese des Auges. Balaenoptera physalus, B. acutorostrata, Megaptera novaeangliae, Delphi- 



nus delphis, Tursiops truncatus, Delphinapterus leucas (Cetacea) 

 d Entwicklung der Korperform. Same species as c 

 e Ontogenese des Zentralnervensystems. Same species as c 



f Ontogenesis (especially nervous system). Globicephala melaena (Odontoceti, Cetacea) 

 PINAMONTI, S. Dr.Biol. - 1st. di Zool., Univ. di Ferrara, Via Previati 24, 44100 FERRARA, Italy 

 a Ommochromes synthesis during embryonic and postembryonic development and its hormonal 



control. Schistocerca gregaria (Orthoptera) 

 b Hormonal control of ommochromes synthesis. Same species as a 

 PINEAU, H. - Lab. d'Anat., Univ. Paris V - Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, 



Fr3ncc 

 PINET, J. M. Dr.es Sci. - Inst. Natl. Agron., Lab. de Zool., 16 rue Claude-Bernard, 75005 PARIS, 



France 

 a Development and electrophysiology of sense organs in the mouth parts. Rhodnius prolixus 



(Heteroptera) 

 b Endocrine aspects of the action of ionizing radiation on post-embryonic development. Same 



species as a 

 PINGANAUD (PERRIN), Mrs. G. Dr.Spec. - Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 



75 PARIS Ve, France 

 PIPERNO, Mrs. A. Dr.es Sci. - Inst, de Biol. Molec, Fac. des Sci., Tour 43, 9 quai St. Bernard, 75 



PARIS Ve, France 

 PIRRONE, Miss A. M. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, 



Italy 

 a RNA synthesis in early development. Paracentrotus lividus (Echinoidea) 

 b Cell free maturation of ribosomal RNA of oocytes. Same species as a 

 PITREL, J. A. D.D.S. - Lab. of Periodontol. Res., Dent. Fac, Rennes I Univ., 2 place Pasteur, 



35000 RENNES, France 

 a Developmental histology of tooth attachment apparatus (Selachii) 

 PLASOTA, K. J. M.Sc - Dept. of Vert. Zool., Univ. of Warsaw, Krakowskie Przedmies'cie 26/28, 



WARSZAWA 64. Poland 

 PLATONOV E S. Cand.biol.sci. - Phenogenet. Lab., Inst, of Gen. Genet., Acad, of Sci. of the 



USSR, Profsoyuznaya St. 7 (I), MOSCOW 117312, U.S.S.R. 

 a Biochemistry and immunology of crystallins during lens development. 

 PLEEGING, J. H. Med.Drs. - Dept. of Anat. and Embryol., State Univ. of Groningen, Ooster- 



singel 69, GRONINGEN, Netherlands 

 a Topographical relationships in the intestine during ontogenesis. Mus musculus (Rodentia) 

 b The origin of the pronephric duct. Mus musculus (Rodentia) 

 POHLEY, H.J. Dr., Prof. - Inst, fur Entw. physiol., Univ. zu Koln, Gyrhofstr. 17, 5 KOLN 41, 



W. Germany 

 POLACK, M. - Arbeitsgr. Prof. G. H. M. Gottschewski am Max-Planck-Inst. fiir Immunbiol., 



78 



