Cumulative mass functions for clouds beyond the solar circle. In each panel, both a truncated (solid blue) and a non-truncated (dashed red) power-law mass spectrum are fit. For the outer Galaxy, the non-truncated, dashed red power-law functional form is preferred. The parameters of the fit for each region are displayed in Table 5. Left: quadrant-by-quadrant fit. Right: combined fit for the second and third quadrants, which contain the most reliable outer Galaxy clouds.