Diffuse Scattering of X-Rays from Sylvine. II

The absolute intensity of the diffuse scattering of x-rays of wave-length 0.71A from sylvine has been measured for a range of angles from 5° to 110°. Homogeneous radiation obtained by the use of balanced filters was used. Woo's formula taking account of the incoherence of part of the scattering was used to calculate the average atomic structure factors of the ions ${\mathrm{K}}^{+}$ and ${\mathrm{Cl}}^{-}$. The results are in good agreement with Wollan's values for argon as well as theoretical values calculated from a Schrödinger charge distribution by Hartree's method.