a. Vergleichende Studien iiber die Entwicklung, cytologische Differenzie- 

 rung, Cytodynamik und Funktion der Epiphysc und des Subcommissural- 

 organs; potenzen des Neuralrohrepithels und ihre Realisierung. Typische 

 Vertreter aller Klassen (Vertebrata) 

 OLDFIELD (WHITEHEAD), Mrs. E. B.Sc. M.Sc. Ph.D. — Science 

 Dept.. Coombe Secondary School for Girls. Clarence Ave., NEW 

 MALDEN. Surrey, England 



a. Embryology of a freshwater species from Ghana. Egeria radiata (Dona- 

 cidae, Tellinaceae, Lamellibranchiata) 

 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 devel- 

 opment, and after various experimental procedures. (Salmonidae) 



h. Study of pituitary grafting. Mollienesia formosa (Cjjprwodontidae) 



c. Histophysiology of endocrine glands. Anquilla anpuilla (Anpiiillidae) 



d. Hypophyseal-adrenocortical relationships, with chemical inhibitors, using 

 histological techniques. (Salmonidae, Angitillidae, Poecilia) 



OLIVO, O.M. M.I.I.E., Prof. — 1st. di Anat. Umana Normale, Univ. di 

 Bologna, Via Imerio 48, BOLOGNA, Italia 

 a. Differentiation and dedifferentiation of embryonic heart myofibrils i n 

 vitro (electron microscopy) . Galhts gallus (Aves) 

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

 aatan 7B, GoTEBORG-SV, Sweden 

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

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

 OOISHI. Miss S. D.Sc. — Zool. Inst.. Fac. of Fisheries. Pref. Univ. of Mie. 

 11. Ootanicho, TSU, Mie Pref., Japan 

 a. Postembryonic development. (Nofodelphuidae. Copepoda) 

 OPPENHEIMER. Mi.ss 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 svstems. Fundulus heteroclitus 

 (Teleostei). Rana pipiens (Anura) 

 O'RAHILLY, R. M.Sc, M.D., M.I.I.E.. Prof. — Dept. of Anat.. School of 

 Med., St. Louis Univ., 1402 South Grand Blvd.. ST LOUIS. Mo. 63104, 

 U.S.A. 

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

 bryonic eve. Gallus dome sticns (Aves). Homo sapiens (Primates) 

 ORGEBIN (CRIST). Mrs. M. C. D. Univ.Lyon — Dept. of Obstetrics and 

 Gynecol.. Vanderbilt Univ. School of Med., NASHVILLE. Tenn. 

 37203, U.S.A. 

 a. Physiology of sperm transport and maturation in the male, (mammalia) 

 ORLOVA, Mrs.I.I. Cand.biol.sci. — Inst, of Exper. Biol.. Acad, of Med. Sci. 

 of the U.S.S.R.. Baltiyskaya 8, MOSCOW A-31 5, U.S.S.R. 

 a. Study of proliferation processes in the organs and organ primordia of 

 embryos. Gallus domesticus (Aves), Mus musculus (Rodentia) 

 ORSINI, Mrs. M.C. WARD B.A., Ph.D., M.I.I.E. — 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) 



153 



