Pcn-Pic 



PENER, M.P. Ph.D. — Dept. of Entomol. and Venomous Animals, Hebrew 

 Univ.. JERUSALEM, Israel 



a. Development of eggs and its interruption under particular conditions of 

 soil moisture. Schistocerca gregaria (Avcrididae, Orthoptera) 



b. Influence of external factors (temperature, humidity) on egg develop- 

 ment. Acrotylus insubricus, Aiolopus thalassinus, Morphacris [asciata 

 sulcata, Oedipoda miniata, O. aurea, O. coemlescens, Locusta migratoria 

 migratorioides, Nomadacds septemfasciata (Acrididae, Orthoptera) (in 

 collaboration with A.SHULOV) 



PENZLIN, H. Dr.rer.nat. — Zool. Inst, der Univ., Universitatsplatz 2, 

 ROSTOCK, Deutsche Demokratische Republik 



a. Physiologie der Regeneration. Cordylophora caspia (Hydrozoa) 



b. Physiologie und Histologic der Regeneration. Blattella spec, Periplaneta 

 spec. (Orthoptera) 



PERA, L. M.D. — Inst, of Anat. and Histoembryol, Univ. of Pisa, Via 



Roma 33. PISA, Itaha 

 PERKOWSKA (MOSER), Mrs.E. Ph.D. — Inst, of Animal Genet., Univ. 



Dept. of Genet., King's Buildings, West Mains Rd.. EDINBURGH 9. 



Scotland 

 a. Types of RNA synthesis in early embryonic tissues, (in collaboration 



with C. H. WADDINGTON ) 

 PERLES, B. — Lab. d'Anat., Fac. de Med., 45 Rue des Sts.Peres, PARIS Vie. 



France 

 a. Oreille interne. Homo sapiens (Primates) 

 PERLMANN. H. P. Ph.D., M.I.I.E. — Wenner-Gren's Inst, for exper. Biol., 



NorrtuUsgatan 16, STOCKHOLM Va., Sweden 

 PERRY, Miss M.M. B.Sc. — Inst, of Animal Genet., Univ. Dept. of Genet., 



King's Buildings,, West Mains Rd., EDINBURGH 9, Scotland 



a. Study of certain features of developing embryos by electronmicroscopy. 

 (Amphibia) (in collaboration with C.H. WADDINGTON) 



b. Electron microscope studies of mutants. Drosophila spp. (Diptera) (in 

 collaboration with C.H. WADDINGTON ) 



c. Ultrastructural changes during growth. Micrasterias thomasiana (Des- 

 midoidea, Conjugales) (in collaboration with C.H.WADDINGTON) 



PERTUSA, J. Ph.D. — Inst. Biol, de Sarria, Dr.Amigant 31, BARCELONA 



17, Spain 

 a. Studies on morphogenetic movements in the blastoderm. Gallus domesti- 



cus (Aves) 

 PETERS. A. B.Sc, Ph.D. — Dept. of Anat., Univ. of Edinburgh, Univ. New 



Buildings, Teviot Row, EDINBURGH 8, Scotland 

 a. Electron microscope study of the formation of myelin sheaths in the 



central nervous system. Rattus domesticus (Rodentia) 

 PETERS, Mrs.H. M.D. — Finsen Lab., Finsen Inst., Strandboulevarden 49, 



COPENHAGEN. Denmark 



a. Radiation sensitivity of oocytes. Mas musculus (Rodentia) (in collabo- 

 ration with E.LEVY ) 



b. Generation time and turnover time of cells in the vaginal and uterine 

 epithelium. Mus musculus (Rodentia) (in collaboration with E.LEVY) 



c DNA synthesis on oocytes. Mus musculus (Rodentia) (in collaboration 

 with E.LEVY and M.CRONE) 



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