Ly-α fitting procedure for H35. Upper panel: original data (blue: flux points indicated with a large dot are considered in the fit, small ones are not) and the best fit Ly-α profile (orange dashed line). Lower panel: Ly-α corrected flux and the values of N_H and λ_Ly-α used for the correction. Indicated with vertical lines are the rest wavelengths of transitions of diagnostic lines (yellow dotted) and the position of the edge of the N v λ1240 line (yellow dashed).