[C ii] and [N ii] emission in the reference OFF1 position at l = 358.̊50 and b = 0.̊25. The data have been smoothed to 2.4 km s^-1 for [C ii] and 3.1 km s^-1 for [N ii] to improve the S/N. The [C ii] emission peaks at V_lsr ~ −195 km s^-1 while that from [N ii] peaks ~ −207 km s^-1, within the fitting errors of the weaker [N ii] signal. The narrow [C ii] emission at V_lsr ~ −58 km s^-1 arises from the 3 kpc arm. [N ii] is not detected from this arm.