ORTIZ, Miss E. Dr. — Dept. of Biol., Univ. of Puerto Rico, RIO PIEDRAS, Puerto Rico 



00931 • 



ORTMANN, B. Dr.rer.nat. — Pestalozzistr. 40, 208 PINNEBERG, W.Germany 

 a Vitamin D-Mangelerscheinungen bei Embryonen. Gallus gallus (Aves) 

 b Einfluss von Polyphosphaten auf Embryonen. Gallus gallus (Aves) 

 ORTOLANI, Miss G. D.Sc, Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 



90123 PALERMO, Italy 

 a Interspecific transplantation of nuclei into eggs. (Amphibia) 

 b Gynogenesis. (Ascidiacea) 

 ORTS LLORCA, F. Prof. — Dept. of Anat., Fac. de Med., Ciudad Univ., MADRID, 



Spain • 



OTERINO, Miss J. M. Biochem. — Inst, de Biol. , Univ. Nac. de Tucuman, Chacabuco 461, 



S. M. de TUCUMAN, Argentina 

 a Chemical factors involved in fertilization: jelly coats and diffusible factor. Bufo arenarum 



(Anura) 

 OTSUKI, K. Ph.D. — Dept. of Anim. Prod., Natl. Grassland Res. Inst, Nishi-nasuno-machi, 



TOCHIGI-ken, Japan 

 OTZCHELI, Mrs. T. A. Cand.biol.sci. — Dept. of Anim. Embryol., Inst, of Zool., Acad, of 



Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. 

 a Reactivity of embryonic suprarenal glands to antigens. Gallus domesticus (Aves) 

 OUWENEEL, W. J. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, 



Universiteitscentrum "De Uithof", UTRECHT, Netherlands 

 a Pattern formation in imaginal discs (dissociation and in vivo culture). Drosophila 



melanogaster (Diptera) 

 b Genetics and physiology of the development of homoeotic mutants. Same species as a 

 OVERTON, Mrs. J. H. Ph.D., Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 



1101 E. 57th St., CHICAGO, 111. 60637, U.S.A. • 



OWERS, N. O. Ph.D. — Dept. of Anat, Coll. of Med., Univ. of Iowa, IOWA CITY, Iowa 



52240. U.S.A. 

 OZAKI, H. Ph.D. — Dept. of Zool., Coll. of Nat. Sci., Michigan State Univ., EAST 



LANSING, Mich. 48823, U.S.A. 

 a Enzyme regulation during development; especially supernatant and mitochondrial malate 



dehydrogenases. Strong ylocentrotus purpucatus (Echinoidea) 

 b RNA synthesis primed by chromatin isolated from embryos. Same species as a 

 c Rate of RNA synthesis and kinds of RNA synthesized in embryos animalized by zinc 



sulfate. Same species as a 

 d Developmental biochemistry, especially ribosomal RNA synthesis during oogenesis. 



Oryzias latipes, Brachydanio rerio, Pimephales promelas (Teleostei) 

 OzDZEfiSKI, W. Ph.D. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krakowskie 



Przedmiescie 26/28, WARSZAWA 64, Poland 

 a Origin and differentiation of primordial germ cells. Gallus domesticus (Aves), Mus 



musculus (Rodentia) 

 b Differentiation of the somatic and germinal tissues of the gonad. Mus musculus (Rodentia) 

 OZEKL K. D.Sc, Prof. — Biol. Inst., Coll. of Gen. Educ, Univ. of Tokyo, Komaba, 



Meguro-ku, TOKYO, Japan 

 PACKER, A. D. M.D. — Dept. of Anat. and Histol., Univ. of Adelaide, ADELAIDE, 



S.Austr. 5000, Australia 

 a Experimental teratology. (Rodentia) 



b Incidence of congenital anomalies. Homo sapiens (Primates) 

 PADYKULA, Miss H. A. Ph.D., Prof. — Lab. of Cell Biol., Dept. of Biol. Sci., Wellesley 



Coll., WELLESLEY, Mass. 02181. U.S.A. • 



PAGEOT (SIMPSON). Mrs. P. B.Sc.(Hons.) — Inst. d'Embryol. et Teratol. Exper. du 



C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France 

 a Transdetermination in imaginal discs after long-term culture in vivo. Drosophila 



melanogaster (Diptera) 

 PAI, S. Dr.rer.nat. — . Lab. of Developm. Physiol., Inst, of Exper. Biol., Acad. Sinica, 320 



Yo Yang Rd., SHANGHAI. People's Republ. of China • 



PALA, Miss M. Dr. — 1st. di Zool., Univ. di Sassari. Via Murroni 25, 07100 SASSARI, 



Italy 

 a The origin of the primordial germ cells. Gambusia holbrookii, Perca fluviatilis (Teleostei), 



Anas spec. (Aves) 

 PALECEK, J. RNDr. — Dept. of Exper. Zool., Charles Univ., Vinicna 7, PRAHA 2, 



Czechoslovakia 

 a Proteins and antigens in early development. (Amphibia) (with A. ROMANOVSK? and 



J. MACHA) 

 PALMITER, R. D. Ph.D. — Dept. of Pharmacol., School of Med., Stanford Univ., STAN- 

 FORD, Calif. 94305, U.S.A. 

 a Mechanisms of steroid (especially estrogen and progesterone) induction of ovalbumin 



synthesis in the oviduct of the immature chicken. Gallus domesticus (Aves) 

 PANDEY, K. M.Sc. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR (UP.), India 



137 



