Paris 71 * Pea 



a. The development of the pineal body. Callus (Aves) (in collaboration 

 with Miss S. C. A. HAIJE) 

 PARMENTER. C. Ph.D., Prof. — Dept of Zool., Univ. of Pennsylvania, 

 PHILADELPHIA 4. Pa. U.S.A. 

 (no data received over two years) 

 PARNELL, I. W. B.A., Ph.D. — Dept of Zool.. Univ. of Edinburgh. West 

 Mains Rd., EDINBURGH 9. Scotland (U.K.) 

 a. Effect of temperature and chemicals on the development of the free 

 living stages. (Bursate Nematoda) 

 PASCHMA, M. M.Ph. — Zaktad Zool. Ogolnej. Inst. Zool. Uniw. we 

 Wroclawiu. ul. Sienkiewicza 21, WROCLAW, Polska (Poland), 

 a. Study of the embryology. (Enchytraeidae, Oligochaeta) 

 PASQUINI. P. Ph.D., Prof. — 1st. di Anat. Comp., Via Belmeloro 8, BO- 

 LOGNA (103). Italia. 



a. Effects of antimitotics on early development and on lens-regeneration. 

 Rana esculenta, Triton and Ambly stoma (Amphibia) (in collaboration 

 with Miss I. De CESARE) 



b. Effects of antimitotics on the regeneration of peripheral nerves. (Uro- 

 dela and Anura) (in collaboration with S. LEGHISSA) 



c. Effects of low temperature on early development. (Amphibia) (in colla- 

 boration with L. RAUNICH) 



PASSALACQUA, Miss A. Dr — 1st. di Zool., Via Archirafi 18, PALER- 

 MO, Italia, 

 a. Combined xenoplastic explantations of tail buds. (Amphibia) 

 h. Development of eggs treated with SCN salts. (Ascidiae, Urochordata) 

 PASTEELS, J. J. M.D., Agr. Ens. sup.. Prof. — Laboratoire d'Anatomie 

 et d'Embrvologie, Fac. de Med. de I'Univ., 97 Rue aux Laines, 

 BRUXELLES, Belgique. 



a. Centrifugation of blastula-gastrula. (Urodela and Anura) 



b. General survey of development. Chrysemis, Pseudemys and Chelone 

 (Chelonia) 



c. Cytochemical observations on the first developmental stages. (Amphibia) 

 (in collaboration with J. BRACHET) 



d. Photometric quantitative determinations of desoxyribonucleic acid (D. 

 N.A.) in resting cells, mitosis, spermatogenesis and development, (in 

 collaboration with L. LISON) 



e. The early development from late neurula stage to an advanced tailbud 

 stage (esp. morphological data for experimental work). Xenopus laevis 

 (Anura) (Normal Table) 



PATANE', L. Dr. Aiuto — 1st. di Zool. e Anat. comp.. Via Androne 25, 

 CANTANIA, Italia. 



a. Sviluppo e struttura degU organi incubatori. Porcellio, Armadillidium, 

 Ligia (Isopoda, Ciustacca) 



b. Azione di tiocomposti sulla metamorfosi dei girini. Rana esculenta 

 (Anura) 



PATTEN, B. M. Ph.D.. Prof. — Dept of Anat.. Med. School. Univ. of 

 Michigan, 2500 East Med. Bldg, ANN ARBOR. Mich., U.S.A. 

 (no data received over this year) 



PEASE. D. C. Dr, Prof. — Dept of Zool., Coll. of Phys. and Surg., Colum- 

 bia Univ.. NEW YORK City. N.Y.. U.S.A. 

 (no data received) 



