The existence of Ca II absorption lines in the spectrum of the quasar 3C 232 due to the galaxy NGC 3067.

We have discovered Ca ii H and K absorption lines in the spectrum of the quasar 3C 232 (Zem = 0.5303) at the same redshift as that of the galaxy NGC 3067, which lies 1 `.9 away on the plane of the sky. The H and K lines have a velocity of(1406 1 11) km s in excellent agreement with the 21 cm neutral hydrogen absorption line found in the system by Haschick and Burke. The 21 cm line is much narrower than are the Ca ii lines. We present arguments that the H and K lines and the 21 cm line are produced in the outer halo rather than the outer disk of NGC 3067. The implications of our discovery concerning the nature of QSO absorption lines in general are discussed. Subject headings: galaxies: redshifts - galaxies: structure - quasars