a Biochemical study of mutant gene effects on skeletal developmental abnormalities. Mus 



musculus (Rodentia) 

 PASCHMA, Miss M. D.Sc. — Inst, of Zool., Univ. of Wroclaw, ul. Sienkiewicza 21, 



WROCLAW 2, Poland 

 a Early development and regeneration. Enchytraeus albidus (Oligochaeta) 

 PASQUINI, P. Ph.D., Prof. — 1st. di Zool. dell'Univ., Viale Regina Elena 324, (al 



Policlinico) , 00100 ROMA, Italy • 



PASSAPONTI, A. M.D., Prof. — 1st. di Anat. Umana Norm., 2a Catt, Univ. di Catania, 



Via Biblioteca 4, 95124 CATANIA, Italy 

 a The morphogenesis of anencephaly. Homo sapiens (Primates) 

 b The development of the inguinal canal. Same species as a 

 c Mezzi facilitanti l'attecchimento di innesti omo- ed eteroplastici in embrioni. Callus 



domesticus (Aves), Rattus rattus (Rodentia) 

 d Capacita formativa degli epiteli di rivestimento neU'embrione. Callus domesticus (Aves) 

 PASTEELS J. J. M.D., Prof. — Lab. d'Anat. et d'Embryol., Fac. de Med. de l'Univ., rue 



aux Laines 97, 1000 BRUXELLES, Belgium • 



a Acid phophatases in the egg (electron microscopy). Barnea Candida (Lamelhbrancnia) 



and other species nDT1l , c 



PASTISSON, C. Dr.en Biol. — Lab. de Biol. Cell., Fac. des ScL, B.P. 347, 51 REIMS, 



France 

 a Spermiogenesis and oogenesis. Hicudo medicinalis (Hivudinea) 

 PATIL, T. L. M.S. — Dept. of Anat., Med. Coll., NAGPUR-3, M.S., India 

 a Regeneration of the apical ectodermal ridge; its influence on individuation of distal limb 



elements (histology). Gallus domesticus (Aves) (with P. N. DUBEY and S. S. NAVA- 



PATRICOLO, Miss E. Dr.nat.sci., Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 



90123 PALERMO 

 a Cellular aggregations. (Amphibia) 

 b Egg histochemistry. (Sabellariidae, Polychaeta) 



c Collagen in embryos. (Ascidiacea) . 



PATTEN B M. Ph.D., Prof. (Emer.) — Dept. of Anat., Univ. of Michigan, Med. bci. 



Bldg. II, ANN ARBOR, Mich. 48104, U.S.A. • 



a Development of the ventricular wall especially the conductory system and the blood 



supply. Homo sapiens (Primates), Sus domesticus (Artiodactyla) 

 PAUL, J. Ph.D. — Beatson Inst, for Cane. Research, Royal Beatson Mem. Hosp., 132 Hill 

 St!, GLASGOW C.3, Scotland, U.K. • 



a Developmental pathology (cancer) 

 PAUTOU (MfiRIC), Mrs. M. P. Dr.spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. 



Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France 

 a Interaction between limb bud ectoderm and mesoderm in xenoplastic associations; the 



competition between mesoderm of two species. Gallus domesticus, Anas boschas (Aves) 

 b Interaction between wing and leg bud ectoderm and mesoderm in xenoplastic associations. 



Same species as a 

 c Electron microscopy of the development of the interdigital spaces; mechanism of program- 

 med cell death. Gallus domesticus, Anas boschas, Coturnix c. japonica (Aves) 

 d Effect of various agents on the development of the foot. Same species as c ____._, „ 



PA VAN, C. Ph.D., Prof. — Dept. of Zool., Univ. of Texas at Austin, AUSTIN, lex. 

 78712, U.S.A. , , . , ' 



a DNA, RNA. and protein synthesis in polytene chromosomes in development ot normal and 



infected larvae. (Sciaridae, Dipteta) 

 PAVfi A-G. Ing., Dr.spec. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 



ll'Novembre 1918, 69 VILLEURBANNE, France 

 a Thermoqenese del' oeui. Bombyx mori (Lepidoptera) 

 PAWLOWITZKI, I. H. Dr.med. — Inst, fur Humangenetik, Westf. Wilhelms Univ., Vesa- 



liusweg 12-14, 44 MUNSTER, W.Germany 

 a Genotype-phenotype correlations: morphology of the placenta in chromosomally abnormal 



spontaneous abortions. Homo sapiens (Primates) 

 b Maternal/paternal origin of supernumerary chromosomes in spontaneous abortions using 



chromosome polymorphism as seen after atebrin-fluorescence. Homo sapiens (Primates) 

 PAWEOWSKA, Mrs. M. — . Dept. of Histol. and Embryol., Warsaw Agnc. Univ., ul. 



Grochowska 272, WARSZAWA, Poland 

 a Histochemistry of gonad differentiation. Bos spec. (Artiodactyla) 

 PA YEN. Miss G. G. — Lab. d'Evol. des Etres Organises, Fac. des Sci., 105 Bd. Raspail.. /5 



PARIS Vie, France 

 a Formation and development of the androgenic glands; their control by neurosecretion. 



Callinectes sapidus, Rhithropanopeus harrisii, Carcinus maenas (Decapoda, Crustacea) 

 b Organogenesis of the genital apparatus in larval stages. Same species as a 

 PEARCE Th L. Ph.D. — Dept. of Anat., Schools of Med. and Dent., Georgetown Univ., 

 3900 Reservoir Rd., N.W., WASHINGTON, D.C. 20007, U.S.A. 



139 



