Pan-Pch 



b. Sullo sviluppo del pancreas. Homo sapiens (Primates) 



c. Studi istochimici sulla barriera placentare. Homo sapiens (Primates) 



d. Studi istochimici sulla placca coriale della placenta. Homo sapiens (Pri- 

 mates) 



PANIGEL, M. Dr.en Med., Dr.es Sci.. Prof. — Inst. Natl, de la Sante et de 

 la Recherche Medicale, Unite de Physiol, placentaire. Hopital St. An- 

 toine, 184 Rue du Faubourg St.-Antoine, PARIS Xlle, France 

 a. Placental structure and function: ultrastructural and perfusion studies 

 (morphology, physiology and pathology). Cavia spec, Mus spec. 

 (Rodentia) , Homo sapiens (Primates) 

 PANITZ, R. Dr. — Inst.f.Kulturpflanzenforsch. der Deutschen Akad. der 

 Wiss. zu Berlin, GATERSLEBEN, Kr. Aschersleben, Deutsche Demo- 

 kratische Republik 

 a. Gene activities in salivary gland chromosomes (puffing) and their 



relation to development. Acricotopus htcidus (Chironomidae, Diptera) 

 h. Control mechanism of puffing. Acricotopus lucidus (Chironomidae, Dip- 

 tera) 

 PANNESE, E. M.D., Prof. — Dept. of Histol. and Embryol., Inst, of Human 

 Anat., Univ. of Bari, Policlinico, BARI, Italia 

 a. Electron microscope study of the differentiation of embryonic spinal 

 ganglion neuroblasts (particularly mitochondria). Gallus gallus (Aves) 

 PANTELOURIS, E.M. B.Sc. Ph.D. — Dept. of Zool.,' Queen's Univ.. 

 BELFAST, N.Ireland 



a. Effects of radiation on foetuses, and means of alleviating them. Mus 

 musculus (Rodentia) 



b. Ontogenesis and inheritance of lymph proteins. Drosophila melanogaster 

 (Diptera) 



PAPACONSTANTINOU. T. M.S.. Ph.D. — Biol. Div., Oak Ridge Natl. 



Lab., P.O. Box Y, OAK RIDGE, Tenn. U.S.A. 

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

 Italia 

 a. Development of hemocyanin. (Crustacea; Mollusca) 

 PARK. Miss H.D. B.S., M.S., Ph.D. — Natl. Inst, of Arthritis and Metabohc 

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

 a. Induction of differentiation of the male gonad. Hydra littoralis (Hy- 



droidea) 

 h. Relationship of growth and sexual differentiation to temperature changes. 

 Hydra pseudoligactis (Hydroidea) 

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

 Schools of Med. and Dent.. Georgetown Univ., 3900 Reservoir Road, 

 N.W., WASHINGTON, D.C. 20007, U.S.A. 

 a. Relationship of neurons and oligodendroglia from development to old age. 

 Mus musculus (Rodentia) 

 PARRISH, F.K. B.A., A.M. — Dept. of Biol., Georgia State Coll., ATLAN- 

 TA, Ga.. U.S.A. 

 a. Investigation of spatial differences in cell surface permeability, and its 

 place in the differentiation of a cell. Nassarius vibex (Prosobranchia, 

 Gastropoda) 

 h. Cytochemical studies on both normal and centrifuged eggs and embryos. 

 Nassarius vibex, N. obsoletus (Prosobranchia, Gastropoda) 



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