ORTS LLORCA. F. Prof. — Lab. de Anat. y Embryo!., Fac. de Med.. 

 Ciudad Univ., MADRID, Spain 



a. Embryology of the lungs. (Mammalia) 



b. Experimental embryology. Gallus domesticus (Aves) 



OSAWA, S. M.A. (Rigakushi) — Biol. Inst., Fac. of Sci., Nagoya Univ., 



Chiqusa-Ku. NAGOYA, Japan 



— Rockefeller Inst, for Med. Res., 66th St, York Ave, NEW YORK 21. 



N.Y., U.S.A. 

 OVERTON, Mrs J. Dr — Dept of Zool., Univ. of Chicago, CHICAGO 



37, 111., U.S.A. 

 OZBURN, R. H. Prof. — Dept of Entomol. and Zool., Ontario Agricultural 



Coll., GUELPH, Ont., Canada 



(no embryological work in progress) 

 PACKER, A. D. — Dept of Anat., Univ. of Adelaide, ADELAIDE, S. Aus- 

 tralia 



a. The development and structure of heart valves, based on the examination 

 of serial sections through valves from different age groups of embryos 

 and foetuses. Homo (Primates) 



b. The aetiology of fatal congenital abnormalities, based on a questionnaire 

 and interviews of parents. Homo (Primates) 



c. The experimental production of congenital abnormalities, using various 

 methods including trypan blue, anoxia and Roentgen rays. Rattus (Ro^ 

 dentia) 



PADOA, E. Dr, Prof. — 1st. di Zool., Fac. di Sci., Via Romana 17, 



FIRENZE, Italia 



(no embryological work in progress) 

 PADYKULA, Miss H. A. B.S., M.A.. Ph.D. — Dept of Anat.. Harvard 



Med. School, 25 Shattuck Str., BOSTON 15, Mass., U.S.A. 



a. Histochemical studies on the liver of the embryonic and post-natal ani- 

 mal to determine the onset of functional activities. Rattus norvegicus 

 (Rodentia) 



b. A histochemical study of glycogen depletion in the early post-natal liver. 

 Rattus norvegicus (Rodentia) 



PAI. S. F.I. I.E., Dr rer. nat. — Lab. of Developm. Physiol., Inst, of Exper. 



Biol., Acad. Sinica, 865 Chang Ning Rd, SHANGHAI, China 

 PALAZZO, Miss F. Dr — 1st. di Zool., Via Archirafi 18. PALERMO. 

 Italia 

 a. Cytochemical studies on the devolopment. (Annelida) 

 PANTELOURIS, E. M. B.Sc. — Inst, of Animal Genet., Univ. Dept of 

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

 (U.K.) 

 a. Ovary transplants for detection of host effects on growth, and of transfer 



of specific molecules. Drosophila (Diptera) 

 h. Transplantation of nuclei and cytoplasmic inclusions. Triton (Urodela) 

 (in collaboration with C. H. WADDINGTON) 

 PAPI, F. Lib.Doc, Prof. — 1st. di Zool. e Anat. comp. dell'Univ., Via A 

 Volta 4, PISA, Italia 

 a. Reproduction and cytology. (Rhabdocoela, Turbellaria) 

 PARRANT, M. Dr en Med. — Lab. d'Embryol., Fac. de Med., 45 Rue des 

 Sts Peres, PARIS Vie, France 

 a. Developpement du systeme dentaire. Homo (Primates) 



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