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With the help of a bent mica Cauchois spectrograph and a bent quartz spectrograph, and using K alpha and K beta radiations of Cu and Mo from the sealed-off x-ray tubes with graphite, polystyrene, and Be as scattering specimens, the modified lines of Smekal-Raman type were observed in calculated positions using the spectrographs for each of the scattering specimens. Tracings of the original microphotometer records are given, clearly showing Rayleigh lines, Compton bands, and Smekal-Raman type modified lines in x-ray scattering. (W.D.M.)
K. Das Gupta (Wed,) studied this question.