a Interspecific transplantation of nuclei into eggs. (Amphibia) 



b Gynogenesis. (Ascidiae) 



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



Spain • 



a Heterologous grafts in the blastodisc from cardiac area to non-cardiac area and vice versa, 



labeled with tritiated thymidine. Gallus domesticus (Aves) 

 O'STEEN, W. K. Ph.D., Prof. — Dept. of Anat., Div. of Basic Health Sci., Emory Univ., 



ATLANTA, Ga. 30322, U.S.A. 



(no embryological work in progress) 

 OTSUKI, K. Ph.D. — Natl. Inst, of Anim. Industry, CHIBA-shi, 280 Japan 

 a Cytochemical nature of the acrosomic system of spermatids and spermatozoa. Bos taurus 



(Artiodactyla) 

 h Storage of fertilized eggs. Oryctolagus cuniculus (Lagomorpha), Capra hircus (Artio- 

 dactyla) 

 OTTENHAMMAR, G. Fil.mag. — Zool. Inst., Univ. of Gothenburg, 4de Langgatan 7B, 



GOTEBORG SV, Sweden 

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



Sci. of the Georgian S.S.R., TBILISI. U.S.S.R. 

 OUV/ENEEL, W. J. M.Sc. — Hubrecht Lab. (Internat. Embryol. Inst.), Uppsalalaan 1, 



Universiteitscentrum ,,De Uithof", UTRECHT, Netherlands 

 a In vivo culture of imaginal eye discs of homoeotic eye mutants. Drosophila melano- 



gaster (Diptera) 

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



CHICAGO, 111. 60637. U.S.A. • 



a Electron microscopic studies of cell surfaces and cell contacts 

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



Iowa 52240, U.S.A. 

 a Enzymatic activities of the implanting blastocyst. Rattus norvegicus, Cavia porcellus 



(Rodentia) 

 OVVRE (BOEHME), Mrs. M. H. Ph.D., Prof. — Inst, of Marine Sci., Univ. of Miami, 



1 Rickenbacker Causeway, MIAMI, Fla. 33149, U.S.A. 

 OZAKI, H. Ph.D. — Dept. of Zool., Michigan State Univ., EAST LANSING. Mich. 48823, 



U.S.A. 

 a Enzyme regulation during development; especially supernatant and mitochondrial malate 



dehydrogenases. Strong ylocentrotus purpuratus (Echinoidea) 

 h RNA synthesis primed by chromatin isolated from embryos. Strong ylocentrotus purpuratus 



(Echinoidea) 

 OzDzEl^lSKI, W. M.Sc. — 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 mus- 



culus (Rodentia) 

 b Differentiation of the somatic and germinal tissues of a mouse gonad. Mas musculus 



(Rodentia) 

 OZEKI, 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.Austraha 5000, Australia 

 a Experimental teratology. (Rodentia) 

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



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

 a Postnatal differentiation of three fiber types in skeletal muscle (electron microscopy and 



histochemistry). Rattus norvegicus (Rodentia) (in collaboration with Miss G. F. GAU- 



THIER and Miss J. M. TAYLOR) 

 b Differentiation of neuromuscular junctions in skeletal muscle (electron microscopy and 



histochemistry). Rattus norvegicus (Rodentia) (in collaboration with Miss G. F. GAU- 



THIER and Miss J. M. TAYLOR) 

 c Ovarian-uterine-placental relationship (electron microscopy and histochemistry). Didelphys 



virginiana (Marsupialia) (in collaboration with Miss G. F. GAUTHIER and Miss J. M. 



TAYLOR) 

 d Lipid transport by the yolk sac placenta (electron microscopy and histochemistry). Rattus 



norvegicus (Rodentia) (in collaboration with Miss G. F. GAUTHIER and Miss J. M. 



TAYLOR) 

 PAGE, L A. M.D. — Dept. of Pediat., School of Med., Stanford Univ., 300 Pasteur Drive, 



PALO ALTO, Calif. 94304, U.S.A. 

 a Synthesis of serum proteins. Rattus norvegicus (Rodentia). Sus scrota (interbred) (Artio- 

 dactyla) 

 b Translational level controls of protein synthesis. Rattus norvegicus (Rodentia), Sus scrofa 



(interbred) (Artiodactyla) 

 PAGEOT (SIMPSON), Mrs. P. Lic.es. Sci. — Inst. d'Embryol. et Teratol. exper. du 



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



132 



