c. Incorporation by primitive erythroblast of labeled RNA-base analogues 

 during haemoglobin synthesis. Gallus domesticus (Aves) 

 ODA, ,Sh. Dr. — Biol. Lab., St. Paul's Univ.. Ikebukuro, TOKYO, Japan 



a. Germination of statoblasts. Lophopodella carted (Phylactolaemata, Bryo- 

 zoa) 



b. Embryology. Buddenbrockia plumatellae (Mesozoa — Tvematoda — 

 Nematoda?) 



O'FARRELL, A. F. B.Sc., ARCS, Prof. — Dept. of Zool.. Univ. of New Eng- 

 land, ARMIDALE 5 N., N.S.W., Australia 

 a. Regeneration and the endocrine system. Blattella germanica (Dictyop- 

 tera, Insecta) (in collaboration with A. STOCK and Miss J. MORGAN) 



OGAWA, T. M.S. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, 

 NAGOYA, Japan 

 a. Serological studies on lens regeneration and lens formation. Triturus 

 pyrrhogaster (Urodela) 



OGREN, R. E. A.B., M.S., Ph.D. — Dept. of Biol., Wilkes Coll., WILKES- 

 BARRE, Pa., U.S.A. 



a. Embryonic development (maturation, cleavage). Hymenolepis diminuta 

 (Cyclophyllidae, Cestodes) 



b. Structure and development of hexacanth embryos (oncospheres). Hy- 

 menolepis diminuta (Cyclophyllidae, Cestodes) 



c. Differentiation of hooks in oncoblasts of immature embryos. Hymenolepis 

 diminuta (Cyclophyllidae, Cestodes) 



d. Differentiation and movement of embryonic myoblasts. Hymenolepis di- 

 minuta (Cyclophyllidae, Cestodes) 



OHMORI, K. — Research Inst, of Environmental Med., Nagoya Univ., Furo- 

 cho, Chikusa-ku, NAGOYA, Japan 

 a. Effects of reduced atmospheric pressures upon the embryo. Mus muscu- 

 lus (Rodentia) (in collaboration with U. MURAKAMI and Y. KA- 

 MEYAMA) 



OHNO, S. D.V.M., Ph.D., D.Sc. — Dept. of Biol., City of Hope Med. Cen- 

 ter, DUARTE, Calif., U.S.A. 



a. Studies on natural chimeras of dizygotic twins. Anas platyrhyncha dom., 

 Meleagris gallopavo (Aves), Bos taurus (Bovidae, Artiodactyla) 



b. Oogenesis. Mus musculus, Microtus oregoni (Rodentia) 



OIKAWA. Miss I. Ph.D. — Fac. of Education, Kochi Univ., KOCHI, Japan 

 OJIMA, Y. D.Sc. — Biol. Lab., Fac. of Sci., Kwansei Gakuin Univ., 



NISHINOMIYA, Japan 

 a. Hybrid sterility. Cyprinus carpio, Carassius auratus (Cyprinidae, Tele- 



ostei) 

 OKA, H. Ph.D., M.I. I.E., Prof. — Inst, of Zool., Tokyo Kyoiku Univ., Ot- 



suka-Kubo-machi 24, Bunkyo-ku, TOKYO, Japan 



a. Metamorphosis of compound forms. Perophora japonica (Ascidia) 



b. Colony-specificity and selective fertilization in compound forms. Botryl- 

 lus primigenus (Ascidia) (in collaboration with H. WATANABE) 



c. Transplantation experiments with the egg. Tachypleus tridentatus (Xi- 

 phosura, Merostomata, Crustacea) (in collaboration with K. SEKIGU- 



OKADA, T. S. D.Sc, M.I.I.E. — Lab. of Developmental Biol., Zool. Inst, 

 Fac. of Sci., Kyoto Univ., KYOTO, Japan 

 a. Immunological studies on the synthesis of tissue proteins in embryos. 

 Gallus domesticus (Aves) 



121 



