a Studies on the regulation of protein and nucleic acid synthesis in lens cell differentiation 

 in vivo and in vitro. Galltxs domesficus (Aves), Bos taurus (Artiodactyla) 



b The molecular events associated with lens fiber cell formation in vivo and in vitro; 

 a) DNA synthesis; b) RNA synthesis and mechanism of stabilization of m-RNA; c) 

 regulation of protein synthesis. Gallus domesticus (Aves), Bos taurus (Artiodactyla) 



c The regulation of DNA synthesis during development: 1. mechanism of DNA puff for- 

 mation in salivary gland during 4th instar development. 2. DNA synthesis in testis during 

 pre-meiotic prophase, in 4th instar. Rhynchosciara angelae (Dipteva) 



PARISI, V. Dr. — 1st. di Zool., Univ. di Milano. Via Celoria 10, MILANO. Italy 



PARK. Miss H. D. Ph.D. — Natl. Inst, of Arthritis and Metab. Diseases, Bldg 2. Rm Bl-14, 

 BETHESDA, Md. 20014, U.S.A. 



a Cell division, differentiation and movement during regeneration. Hydra pseudoligactis 

 (Hydroidea) 



h Relationship of growth and bud development to temperature changes. Hydra littoralis 

 (Hydroidea) 



PARNELL (KING), Mrs. J. B.Sc, M.B.. B.Ch., Prof. — Dept. of Anat., Georgetown Univ., 

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



PARRINELLO, N. D.Sc. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18. 90123 

 PALERMO, Italy 



a Hybridization between subspecies. Discoglossus pictus (Anura) 



PARSONS, R. M.Sc. — Muscular Dystrophy Research Labs., Newcastle Gen. Hosp., 

 NEWCASTLE upon Tyne NE4 6BE, England 



a Cinemicrographic studies of the growth patterns of myoblasts cultured from normal and 

 dystrophic muscle under the differential interference microscope, with an eye to deter- 

 mining the origin of the myoblast nuclei. Gallus domesticus (Aves), Mus musculus (Ro- 

 dentia). Homo sapiens (Primates) 



b Electron microscope studies of normal myoblasts undergoing active fusion, and myoblasts 

 from dystrophic origin, with special attention to ribosome numbers and nucleolar mor- 

 phology. Gallus domesticus (Aves), Mus musculus (Rodentia), Homo sapiens (Primates) 



PARTANEN, C. R. Ph.D., Prof. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH 

 Pa. 15213. U.S.A. 



a Nuclear aspects of cellular differentiation in vitro. Paeonia suifruticosa (Ranuncula' 

 ceae). Allium cepa (Liliaceae), Pteridium aquilinum (Filicinae) 



PARTRIDGE, T. A. — Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland, 

 U.K. 



a Effects of antibodies on the behaviour of cells in tissue culture. Gallus domesticus (Aves), 

 Mus musculus (Rodentia) 



h Treatment of cultured fibroblasts with monovalent antibody fragments (papain fragments) 

 to test whether antibody-induced changes in cell behaviour can be attributed to aggluti- 

 nation. Gallus domesticus (Aves) 



PASCAUD, M. Dr.. Prof. — Inst, de Recherches Sci. sur le Cancer, C.N.R.S., B.P.No.8. 

 VILLEJUIF 94. France 

 (no embryological work in progress) 



PASCHMA, M. D.Sc. — Zaklad Zool. Ogolnej, Inst, of Zool., Univ. of Wroclaw, ul. 

 Sienkiewicza 21. WROCflAW. Poland 



PASCUAL-MORENILLA. Miss M. T. M.D. — Inst. F.Oloriz. Fac. de Med., Univ. de 

 Granada, GRANADA, Spain 



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

 chnico), ROMA, Italy • 



a Growth and differentiation of regeneration blastema in vivo and in vitro. Planaria 

 torva, Dugesia etrusca (Turbellaria) (in collaboration with H. MANELLI and Mrs. M. 

 STAMPA (DI CASTRO)) 



b Growth and differentiation in regeneration. Planaria spec. (Turbellaria) (in collaboration 

 with H. MANELLI) 



PASSAPONTI. A. M.D., Prof. — 1st. di Anat. Umana Normale. 2a Cattedra. Via Biblioteca 

 4, 95124 CATANIA, Italy 



a The morphological aspect of embryo atrophy. Homo sapiens (Primates) 



h The morphogenesis of anencephaly. Homo sapiens (Primates) 



c The development of the inguinal canal. Homo sapiens (Primates) 



d Structural changes of allantoic membrane epithelium submitted to the action of different 

 agents. Gallus domesticus (Aves) 



PASTEELS, J. J. M.D., Prof. — Lab. d'Anat. et d'Embryol.. Fac. de Med. de I'Univ.. 97 

 rue aux Laines, BRUXELLES, Belgium • 



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

 France 



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



a Regulatory process of mesoderm in limb morphogenesis; various presumptive areas at 

 pre-axial and post-axial borders of limb bud/wing bud of stage 19-20 embryos are ablated. 

 Gallus domesticus (Aves) (in collaboration with P. N. DUBEY) 



134 



