Same as Fig. 4 but calculated for the total emission within the [C ii] and [N ii] bands along each of ten lines of sight as it would be observed by a low resolution spectrometer. The blue filled circles and blue filled diamond are the Galactic disk sources and the Galactic center source, respectively, where I_tot([C ii]) equals the observed [C ii] intensity, I_obs([C ii]), uncorrected for foreground absorption. A ratio greater than 1.0 corresponds to a predicted [C ii] arising from the [N ii] region greater than that observed.