Orto 70 Paris 



a. The map of the presumptive organ territories in the germ. (Ascidiae, 

 Urochordata) 

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

 CADIZ, Spain. 



a. Embryology of the heart. (Mammalia) 



b. Embryology of the salivary glands. (Mammalia) 



c. Embryology of the lungs. (Mammalia) 



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

 Chigusa-Ku. NAGOYA, Japan. 



a. Distribution of phosphatases in early developmental stages, studied histo- 

 chemically. Rhacophorus schlegelii and Tritiirus pyrrhogaster (Amphibia) 



b. Microphotometric estimation of desoxyribonucleic acid in the nuclei of 

 different presumptive regions of the developing eggs. (Vertebrata and 

 Invertebrata) (in collaboration with T. YAM AD A, H. NAORA and 

 A. SIBATANI) 



OVERTON, Miss J. Dr — Dept of Zool., Univ. of Chicago, CHICAGO 37, 

 111., U.S.A. 

 a. Mitogenic stimulation of epidermis by fragments of nervous system. 

 (Urodela) (in collaboration with P. A. WEISS) 

 PADOA, E. Dr, Prof. — 1st. di Biol, e Zool. gen., Fac. di Med., Piazza 

 S. Agostino 4. SIENA, Italia, 

 a. Experimental sex reversal of larvae. (Amphibia) 

 h. Control of metamorphosis. (Amphibia) 

 PAETERSDAL, Th. — Tornblad-Inst. of comp. Embryol., Histol. Dept of 

 the Univ. of Lund, Biskopsgatan 7, LUND, Sweden, (from Univ. of 

 BERGEN, Norway) 

 a. The development of the gastrula and the neural anlage. (Labyrinthici, 

 Teleostei) 

 PAI, S. Dr rer. nat. — Lab. of Developm. Physiol., Inst, of Exper. Biol., 

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

 a. Isolation, purification, chemistry and the mode of action of eye stalk 

 hormone. (Crustacea) (in collaboration with Shen Shu MING, Yang 

 Fu YU and K. P. CHANG) 

 PAI, Mrs Tseng Mi B.Sc. — Laboratory of Developmental Physiology, 

 Inst, of Exper. Biol., Acad. Sinica, 865 Chang Ning Rd, SHANGHAI, 

 China, 

 a. Induction capacity of foreign tissues on mesoderm. 

 PANSKY, B. — Dept of Anat., Univ. of Wisconsin, MADISON, Wis., 

 U.S.A. 

 a. Regeneration of the germinal epithelium of the ovary. (Mammalia) (in 

 collaboration with F. STRAUSS. Bern, Schweiz and H. W. MOSS- 

 MAN. Madison. Wis.) 

 PARI. F. Dott. in Sc. — 1st. di Zool. e Anat. comp. dell'Univ.. Via A. Volta 

 4. PISA. Itaha. 

 a. Reproduction and cytology. (Rhabdocoela, Turbellavia) 

 PARDI. L. Lib.Doc. — 1st. di Zool. e Anat. comp. dell'Univ.. Via A. Volta 

 4. PISA, Italia, 

 a. Oviposition, parthenogenesis, cytology. (Insecta) 

 h. Cytology of italian races. Solenobia (Lepidoptera) 

 PARIS. Mis A. J. — Hubrecht Lab., Internat. Embryol. Inst.. Janskerkhof 2, 

 UTRECHT. Holland. 



