Oka-Owm 



OKADA, Y. K. M.J.A., Dr., F.I.I.E., Prof. — National Museum of Nat.Sci., 



Ueno Park, Daito-ku, TOKYO, Japan 

 a. Cytological studies on sex-reversal. Halichoeres poecilopterus (Labridae, 



Teleostei), Oryzias latipes, Gambusia af finis (Cyprinodontidae, Tele- 



ostei) , Mylio mactocephalus (Sparidae, Teleostei) 

 OKAZAKI, Miss K. O. Dr., M.I.I.E. — Dept. of Anat, School of Med., 



Univ. of Pennsylvania, PHILADELPHIA 4, Pa., U.S.A. 



a. Radioautographic study of calcium deposition. Pseudocentrotus depres- 

 sus, Hemicentrotus pulcherrimus (Echinoidea) 



b. Study of spicule formation by isolated primary mesenchyme cells. Cly- 

 peaster japonicus, Pseudocentrotus depressus, Hemicentrotus pulcherri- 

 mus (Echinoidea) 



OKSCHE, A. Dr.med. — Anat. Inst, der Univ. Kiel, Neue Univ., Eingang 



F 1, (24b) KIEL, Deutsche Bundesrepublik 

 a. Vergleichende Studien iiber die Entwicklung, cytologische Differenzie- 



rung, Cytodynamik und Funktion der Epiphyse und des Subcommisural- 



organs. Potenzen des Neuralrohrepithels und ihre Realisierung. Typische 



Vertreter aller Klassen (Vertebrata) 

 OLIVEREAU, Miss M. M. A. Dr.es Sci. — Lab. de Physiol., Inst. Oceano- 



graphique, 195 Rue St. Jacques, PARIS Ve, France 



a. Cytology and histochemistry of endocrine glands in relation with develop- 

 ment, and after various experimental procedures. (Salmonidae) 



b. Study of pituitary grafting. Mollienesia formosa (Cyprinodontidae) 

 OLIVIER, G. H. G. D.M., D.Sc. Prof. — Lab. d'Anat. fonctionnelle et de 



Neuro-anat, Fac. de Med., 45 Rue des Sts. Peres, PARIS Vie, France 

 OLIVO, O. M. M.I.I.E., Prof. — 1st. di Anat. Urn. Norm., Via Senerio 48. 



Univ. di Bologna, Via Irnerio 48. BOLOGNA, Italia 

 OLSSON, I. Fil.mag. — Zool. Inst., Univ. of Gothenburg, Fjarde Langga- 

 tan 7B, G5TEBORG-SV, Sweden 

 a. Experimental pressure- and gas-studies on embryos. Gallus spec. (Aves) 

 ONUMA, H. Dr. — Nat. Inst, of Animal Industry, CHIBA-shi, Japan 



a. Gametogenesis and fertilization. (Mammalia) 

 OPPENHEIMER, Miss J. M. A.B., Ph.D., M.I.I.E., Prof. — Dept. of Biol., 

 Bryn Mawr Coll., BRYN MAWR, Pa., U.S.A. 

 a. Studies on the optic cup-lens induction system. Fundulus heteroclitus 

 (Teleostei), Rana pipiens (Anura) 

 ORAHILLY, R. M.Sc. M.D., Prof. — Dept. of Anat., School of Med., St. 

 Louis Univ., 1402 South Grand Bd., ST. LOUIS 4, Mo., U.S.A. 

 a. Morphogenesis, developmental histochemistry, and ultrastructure of em- 

 bryonic eye. Gallus domesticus (Aves), Homo sapiens (Primates) 

 ORSINI, Mrs. M. C. WARD B.A., Ph.D. — Dept. of Anat., Bardeen Med. 

 Labs., Univ. of Wisconsin, MADISON 6, Wis., U.S.A. 



a. Fetal membranes, giant cells and pregnancy changes in uterine vessels. 

 Mesocricetus auratus (Rodentia) 



b. Delayed implantation. Mesocricetus auratus (Rodentia) 



c. Decidualization in pregnant and pseudopregnant females. Mesocricetus 

 auratus, Rattus norvegicus (Rodentia) 



ORTOLANI, Miss G. Dr. — 1st. di Zool., Via Archirafi 18, PALERMO, 

 Italia 



a. Induction processes in embryonic development. (Ascidiae) 



b. Embryology. (Ctenophora) 



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