Absorption lines of CH⁺ (λ4232), CH (λ4300), and either K I (λ7698) or Na I (λ5895; Melnick 42 only) toward LMC stars observed with UVES under programs V04, C02, and C04. Only the Magellanic Clouds absorption is shown. Note the strong CH⁺ absorption toward the LMC star LH 10‐3061. The vertical scale is expanded by a factor of 2 for K I (left‐hand scales) and by factors of 2 or 5 for the molecular lines (right‐hand scales).