Key points are not available for this paper at this time.
X-rays from a molybdenum target were scattered by graphite at approximately 109^ and 161^. The scattered rays were analyzed with a double crystal spectrometer. When scattering at 109^ was used, no indication of the fine structure lines, reported by Davis and his collaborators, could be found. When scattering at 161^ was used, the modified K₁ and K₂ lines were definitely separated. The value of was 0. 047210. 00003A, the value of 1-cos was 1. 9479 and the calculated value of hmc was 0. 024240. 00004A.
N. S. Gingrich (Mon,) studied this question.