(a) Observed NIR extinction curves compared to fits determined from Equation (5). The data and symbols are the same as in Figure 3. All the ACS data were included in the fits (thus all the large squares are shown as filled). The dotted portions of the curves indicate extrapolations of the fitting function beyond the range of the data. The sight lines are organized in order of increasing R(V). (b) Six more sight lines. (c) Two highest R(V) sight lines.