ORTS LLORCA, F. M.I. I.E., Prof. — Lab. de Anat. y Embriol.. Fac. de 

 Med., Ciudad Univ., MADRID, Spain 



a. Microphthalmie experimentale. G alius spec. (Aves) 



b. Determination et differenciation du coeur. Gallus spec. (Aves) 

 OSANAI, M. M.A., D.Sc. — Biol. Lab., Keio Univ., YOKOHAMA-Hiyoshi, 



Japan 



a. Colour changes of larvae in diapause. (Lepidoptera) 



b. Studies on the pterins and their precursors during postembryonal develop- 

 ment. (Pieridae, Lepidoptera) 



O'STEEN, W. K. B.A., M.S., Ph.D. — Dept. of Anat., Med. Branch., Univ. 

 of Texas, GALVESTON, Tex., U.S.A. 



a. Regeneration of the intestine after transection of gut in one to several 

 sites; reversal of segments; looping of segments. Diemictylus viridescens 

 vivid. (Urodela) 



b. Regeneration of intestine in larval forms after simple single transections 

 of loops of the coiled intestine, and re-establishment of functional intestine 

 after removal of large percentage of digestive tract; effects on metamor- 

 phosis. Rana clamitans (Anura) 



c. Radioautographic studies of regeneration (cell renewal) in forelimb and 

 intestine. Diemictylus viridescens (Urodela) 



OTSUKI, K. — Nat. Inst, of Animal Industry, CHIBA-shi, Japan 



a. Transplantation of fertilized ova by a non-surgical method. (Mammalia) 

 (in collaboration with T. SOMA and T. SUGIE) 



b. Storage and culture of fertilized ova. (Mammalia) (in collaboration with 

 T. SOMA and T. SUGIE) 



c. Fertilization of ova in vitro. (Mammalia) (in collaboration with T. 

 SOMA and T. SUGIE) 



OTZCHELI. Mrs. T. A. Cand.biol.sci. — Lab. of Animal Embryol., Inst, of 

 Zool., Acad, of Sci. of the Georgian S.S.R., TBILISSI, U.S.S.R. 



a. Physiological regeneration of the uterus. Microtus socialis (Cricetidae, 

 Rodentia) 



b. Influence of bacteria on the parenchymal embryonal tissue. Gallus gallus 

 (Aves) 



OVERTON, Mrs. J. H. Ph.D., M.I. I.E. — Dept. of Zool., Biol. Sci. Div., 

 Univ. of Chicago, CHICAGO, 111., U.S.A. 



a. Cell adhesion in early development. Gallus domesticus (Aves) 



b. Regeneration in the eye. Xenopus laevis (Anura) (in collaboration with 

 G. FREEMAN) 



c. Polarity in limb regeneration. Xenopus laevis (Anura) 



OWERS, N. O. Ph.D. — Dept. of Anat., School of Med., State Univ. of Iowa, 

 IOWA City, Iowa, U.S.A. 



a. Placentation. (Soricidae; Tupaiidae) 



b. Development of fetal membranes. (Soricidae, Insectivora) (in collabora- 

 tion with H. W. MOSSMAN) 



c. Tissue and organ culture of fetal membranes. Sus scro[a (Artiodactyla) 

 OWMAN, Ch. Med.kand. — Dept. of Anat., Univ. of Lund, Biskopsgatan 



7, LUND, Sweden 



a. Comparative studies on the fetal pineal gland. (Mammalia) 



b. Experimental investigations on the developing pineal gland. Rattus spec. 

 (Rodentia) 



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