PIGHILLS. Miss E. B.Sc. — Dept. of Zool.. Univ. Coll. of North Wales, BANGOR, 



Caern., Wales, U.K. 

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



aries (Artiodactyla) 

 b Experimental embryology. Mus musculus (Rodentia) 

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



54 NANCY, France 

 a Etude experimentale du developpement post-embryonnaire du systeme tracheen. (Brachy- 



cera, Diptera) (en collaboration avec F. STEPHAN) 

 PIJNACKER, L. P. Ph.D. — Genet. Inst., Univ. van Groningen, Rijksstraatweg 76, HAREN 



(Gr.), Netherlands 

 a Oogenesis, parthenogenesis, and teratogenesis. Caraitsius morosus. Bacillus rossii (Phasmi- 



dopteca), (Acad, Arachnida) 

 PIKO, L. Ing.Agr., D.V.M. — Dept. of Developm. Biol., Div. of Biol., Calif. Inst, of 



Technol., PASADENA, Cahf. 91 109, U.S.A. • 



PILKINGTON, J. B. Ph.D. — Dept. of Zool., Univ. of Otago, DUNEDIN. New Zealand 

 a Calcification in metamorphosis. (Amphibia) 

 b Calcification. (Echinoidea) 

 PILLERI, G. Dr.med. — Himanat. Inst, der Psychiatr. Univ. Klinik Bern, 3072 OSTER- 



MUNDIGEN-BE, Switzerland 

 a Entwicklung des Gehirns. Castor canadensis (Rodentia) 



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

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



Delphinus delphis, Tursiops truncatus, Delphinapterus leucas (Cetacea) 

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

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

 e Ontogenese des Zentralnervensystems. Balaenoptera physalus, B. acutorostrata. Megaptera 



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

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

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



RARA, Italy 

 PINEAU, H. — Lab. d'Anat, Fac. de Med., 45 rue des Sts. Peres, 75 PARIS VI, France 

 PINET, J.-M. Dr.3e Cycle — Inst. Natl. Agronomique, Lab. de Zool., 1 6 rue Claude-Bernard, 



75 PARIS Ve, France 

 a Studies of the development of the maxillary stylet (fine structure, histochemistry of the 



styligenic organ). Rhodnius prolixus (Reduviidae, Heteroptera) 

 b Potentiality of the cells of the styligenic organ according to their sites. Rhodnius prolixus 



(Reduviidae, Heteroptera) 

 c Development of the integument, especially studies of the chitinogenic cell of the max2'ary 



bud. Rhodnius prolixus (Reduviidae, Heteroptera) 

 PINOT, Miss M. Dr.es. Sci. — Inst. d'Embryol. et Teratol. exper. du C.N.R.S., 49 bis Av. 



de la Belle Gabrielle, 94-NOGENT-sur-MARNE, France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place M. Berthelot, PARIS Ve, France 

 a Etude de la croissance et de la differenciation du bourgeon de membre in vitro. Gallus 



gallus (Aves) 

 b Rapports mesenchyme axial - mesenchyme lateral dans I'organogenese du membre. Gallus 



gallus (Aves) 

 c Regulation tardive du membre. Gallus gallus (Aves) 

 PLAS, Mrs. C. Dr.3e Cycle — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS. 



France 

 a Pre- and postnatal changes in glucose and glycogen metabolism of the liver cell; in vivo 



and in isolated cultured hepatocytes. Rattus norvegicus (Rodentia) (in collaboration with 



R. L. JACQUOT) 

 PLASOTA, K. J. M.Sc. — Inst, of Zool., Warsaw Univ., Krakowskie Przedmiescie 26/28, 



WARSZAWA 64, Poland 

 a Development of the skull. Rana ferresfris, R. esculenta, R. tempocacia, Bufo spec, Pelobates 



^uscus (Anura) 

 PLEEGING, J. H. Med.Drs. — Dept. of Anat. and Embryo!., State Univ. of Groningen, 



Oostersingel 69, GRONINGEN, Netherlands 

 PLESNER, P. M.D., Prof. — Dept. of Molec. Biol., Odense Univ., 230 Hjallesevej, 5000 



ODENSE, Denmark 

 a The formation of ribosomes. Tetrahymena spec. (Ciliata) 

 POHLEY, H. }. Dr., Prof. — Inst, fur Entw.physiol., Univ. zu Koln, Gyrhofstr. 17, 5 



KOLN-Lindenthal, W.Germany 

 a Theoretische und experimentelle Untersuchungen iiber 1 ) Regeneration und Hautung, 



2) Regulation des Zellteilungswachstums. Ephestia kuhniella (Lepidoptera) . Periplaneta 



americana (Orthoptera) 

 b Modelldarstellung entwicklungsphysiologischer Systeme mit Hilfe von programmgesteuerten 



Rechenanlagen 



138 



