The wavelength interval form 3100 Å<λ<8200Å has been divided into 16 spectral regions. In each region, all of the lines have been combined to form one line with the same distribution of Kv as all the lines together. Values of Δλm have been calculated for which Kv = K0 exp(-m). Tables for Δλ3, Δλ10 and Δλ15 as well as for K0 are given as a function of the gas pressure Pg and the temperature T. © 1969.