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	Figure 2: H  II region LFs of NGC 3631 ( top panel), whose catalogue contains 801 H  II regions, fitted with a double power law, and of NGC 1068 ( lower panel), with 166 H  II regions, and fitted with a single power law. The LFs have been plotted with bin widths of 0.2 and 0.5 dex, repectively.
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In the text

	Figure 3: LF made from the combined H  II region catalogues of 53 of our sample galaxies. The large number of H  II regions allows plotting the LF in steps of 0.1 dex. The best double-slope fit is indicated by the lines, where dashes show extrapolations beyond the range over which the best fit has been made.
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In the text

	Figure 4: Coefficient of determination, r2, for the upper and lower slopes of the double-slope fit to the combined LF of Fig. 3, as a function of the at which the break between the two slopes occurs. Better fits are closer to r2=1, so the best fit is achieved for a break at , the average of the best values for the low and high-L slopes.
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In the text

	Figure 1: LFs of 56 of our sample galaxies, with best power law fits overlaid. Bin sizes for plotting and for LF fitting vary depending on the number of HII regions, as given in Table 1. See text for further details.
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In the text

	Figure 1: continued.
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In the text

	Figure 1: continued.
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In the text

	Figure 1: continued.
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In the text

	Figure 1: continued.
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In the text

	Figure 1: continued.
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In the text

	Figure 1: continued.
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In the text