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



Delphinus delphis, Tursiops truncatus, Delphinapterus leucas (Cetacea) 

 d Regressive evolution of the eye. Platanista indi, P. gangetica, Inia geoffrensis, Pontoporia blain- 



villei (Platanistoidea, Cetacea) 

 e Entwicklung der Korperform. dieselben Arten wie c 

 f Ontogenese des Zentralnervensystems. dieselben Arten wie c 



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

 h General ontogenesis. Platanista gangetica, Pontoporia blainvillei (Cetacea) 

 i Ontogenese der instinktiven Bewegungen und ihr Wiederauftreten als neurologische Symptome 



bei Hirnkrankheiten. Homo sapiens (Primates) 

 PlRKlC, A.; M.D. - Dept. of Zool., Univ. of Zagreb, Rooseveltov trg 6, 41000 ZAGREB, Yugoslavia 

 PIRRONE, Ms. 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 "Capping of RNA. Same species as a 

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



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

 a Biochemistry and immunology of crystallins during lens development. Mus musculus (Rodentia) 

 PLEEGING, J. H.; M.D. - Dept. of Anat. and Embryol., State Univ. of Groningen, Oostersingel 69, 



GRONINGEN, Netherlands 

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

 b The origin of the pronephric duct. Same species as a 

 POLANI, P. E.; M.D., F.R.S., Prof. - Paediat. Res. Unit, Guy's Hosp. Med. Sch., Guy's Tower, 



LONDON SEl 9RT, England 

 a Male and female meiosis. Mus spec, Acomys spec, Microtus spec (Rodentia), Homo sapiens 



(Primates) 

 b Developmental cytogenetics, especially origin of aneuploidy. Mus musculus (Rodentia), Homo 



sapiens (Primates) 

 POLEZHAEV, L. V.; Dr.biol., Prof. - Inst, of Developm. Biol., Acad, of Sci. of the USSR, Vavilov 



St. 26, MOSCOW 117334, U.S.S.R. 

 POLGE, C; Dr. - A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 Huntmgdon 



Rd., CAMBRIDGE CB3 OJQ, England 

 POLL, N. E. van de; Dr. - Netherl. inst. for Brain Res., IJdijk 28, AMSrERDAM, Netherlands 

 a Development and correctibility of behaviour. Rattus norvegicus (Rodentia) 

 POLTEVA Ms. D. G.; Cand.biol.sci. - Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, 



LENINGRAD 199164, U.S.S.R. 

 a Morphogenesis during somatic embryogenesis. Obelia geniculata, O. flexuosa, O. lovenn, Coryne 



lovenii. Hydra oligactis (Hydrozoa) 

 PORCELLI, Ms. P.; Ph.D., Prof. - Inst, of Dom. Anim. Anat., Univ. of Milano, ViaCeloria 10, 20100 



MILANO, Italy , . , ^ , 



a Maternal malnutrition as a cause of placental insufficiency and of abnormal fetal development, 



especially cerebellar pre- and post-natal histogenesis (qualitative and quantitatieve histochemis- 

 try). Rattus rattus (Rodentia) 

 b Normal and pathological spermatogenesis (quantitative cytochemistry). (Mammalia) 

 PORTCH, P. - Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WCIE 6BT, 



a Cell migration within the embryo. Gallus domesticus (Aves) (with M. R. BELLAIRS) 

 POSINOVEC, Ms. J.; M.D., D.Sc, Prof. - Inst, of Histol. and Embryol., Fac of Med., Univ. of Zagreb, 



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

 a Anomalies of spermatogenesis due to disorders in testis development. Homo sapiens (Primates) 

 b Appearance and pattern formation of reticulin fibers during ontogenesis of the testis. Same 



species as a 

 c Embryonic development of the parotid gland. Same species as a 

 POURTOIS, M.; M.D., Prof. - Inst, de Stomatol., Univ. Libre de Bruxelles, 322 rue Haute, 1000 



BRUXELLES, Belgium ^ ^ , • xt -,, 



POUWELS, Ms. E.; Dr. - Dept. of Anat. and Embryol., Cathol. Univ., Geert Grooteplem N.21, 



NIJMEGEN, Netherlands 

 a Development of the cerebellum (hght microscopy, electron microscopy). Sabno gau:dneri 



(Teleostei) c- r^ ■ ^ 



PRAT, Ms. M.; Ph.D. - Cell and Molec. Biol. Lab., Dept. of Human Anat., Univ. of Tormo, Corso 



M.d'Azeglio 52, 10126 TORINO, Italy 

 a Cell membrane differentiation; immunochemistry of surface macromolecules. Mus musculus 



(Rodentia) 

 b Membrane-mediated growth control in BHK cells. Mesocricetus auratus (Rodentia) 

 PRATT, C. W. McE.; M.D. - Anat. School, Univ. of Cambridge, Downing St., CAMBRIDGE CB2 



3DY, England 

 a Development of skeletal tissue. Many spp. (Mammalia) 

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



RepubliciiNo. 48, 3400 CLUJ-Napoca, Rumania 

 a Influence de la temperature d'incubation sur I'immunomorphologie de I'embryon. Gallus spec. 



(Aves) , , X n 



b Correlation entre le foie en regeneration et autres organes (surrenale, testicule). Rattus spec 

 (Rodentia) 



83 



