Extracted spectra of the QSO 3C 196 and its DLA galaxy in the blue channel of LRIS, which covers a rest‐frame wavelength range from 2400 to 4000 Å. The panels show the spectrum of the QSO, the contaminated spectrum of the galaxy with the QSO light, and the spectrum of the galaxy after subtracting the QSO contribution. The prominent emission‐line and absorption‐line features of the galaxy are shown with dashed lines, and emissions of the QSO with dash‐dotted lines. Marked with an ﹩\textsf{X}﹩ is an emission feature that is likely caused by a cosmic ray.