Optical spectroscopy of meteorites is an important laboratory tool for the study of the origin and evolution of solar and galactic interstellar minor bodies. In the region from the visible to the ultraviolet, the absorption spectra have hitherto been measured on the Bruderheim (Egan and Hilgeman, 1975), the Orgueil (Huffman, 1977), the Murchison (Sakata et al., 1977) and the Yamato (Yabushita et al., 1987) chondrites. These measurements were performed with pulverized specimens mixed with KBr powder or suspended in a transparent liquid. Due to these methods of sample preparation, the spectra observed were not very clear and the origin of the observed absorption features was not identified. In the present study, we have studied carbonaceous chondrites in the from of a thin film prepared by vacuum evaporation.