Acta Biologica 18. (1967)

1. szám

ACADEMIAE SCIENTIARUM HUNGARICAE B. FALUDI, V. FRENYÓ, B. GYŐRFFY, J. SZENTÁGOTHAI, J. TIGYI REDIGIT I. TÖRŐ TOMUS XVIII FASCICULUS I m AKADÉMIAI KIADÓ, BUDAPEST 1967 INDEX Zs.-Nagy, I.: Histochemical demonstration of biogenic mono­amines in the central nervous system of the lamelli­branch mollusc Anodonta cygnea L........................................... 1 Koritsánszky, S.—Vigh, B.—Áros, B.: Studies on the Gomo­­ri-positive glial cells. I. The changes in the periventricu­lar Gomori-positive glial cells in rats of various ages .... 9 Petrusz, P.— Nagy, É.: On the mechanism of sexual differen­tiation of the hypothalamus; decreased hypothalamic oestrogen sensitivity in androgen-sterilized female rats 2 Flerkó, В,—Petrusz, P.—Tima, L.: On the mechanism of sexual differentiation of the hypothalamus. Factors influ­encing the “critical period” of the rat ............................. 27 Efremova, S. M.: The cell behaviour of the fresh-water sponge Ephydatiafluviatilis. A time-lapse microcinematography study...................................................................................................... 37 Hadhäzy, Cs.— H. Oláh, É.: Studies on cartilage formation. X. Phosphoglucose isomerase activity of the chondrify­­ing articular surface in various stages of regeneration . . 47 Vigh, B.— Röhi.ich, P.—Teichmann, I.—Áros, В.: Ependy­­mosecrction (Ependymal neurosecrction). VI. Light- and electron microscopic examination of the subcommissural organ of the guinea pig ................................................................. 53 Siiarma, А. К,—Bhattacharyya, G. N.: A study on the res­ponse of chromosomes to antibiotic treatment................. 67 VirAgh, Sz.—Tiboldi, T.— Kovács, К,— Julesz, M.—Törő, I.; Electron microscopic structure of anterior pituitaries transplanted into the anterior chamber of the eye in rats 77 Recension; ...................................................................................................... 91

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