A survey of the $\alpha$-satellites from Ge (32) to Mg (12) reveals new lines in the $K{\alpha }^{\prime }$ series, from the element Ca (20) to Va (23). The $K{\alpha }_{3.4}$ doublet is resolved over five additional elements, from Ca (20) to Mn (25). The $K{\alpha }_3$ line is shown to have two components, $K{\alpha }_3$ and $K{{\alpha }_3}^{\prime }$, over the range of elements Al (13) to Cl (17). Microphotometer records, tracings of which are shown, reveal a significant reversal in the relative intensity of $K{\alpha }_3$ and $K{\alpha }_4$. This reversal is an atomic phenomenon and is not dependent upon chemical combination.

The survey of the $\beta$-satellites from Cu (29) to Cl (17) adds two new lines of the $K{\beta }^{\prime \prime }$ series in the elements Cr (24) and Cl (17), four new lines in the $K\beta \eta$ series from Va (23) to K (19), and reveals two new series, named $K{\beta }^{\mathrm{IV}}$ and $K{\beta }^{\mathrm{V}}$. The $K{\beta }^{\mathrm{IV}}$ series was found in three elements; viz., Sc (21), Ca (20) and K (19) while the $K{\beta }^{\mathrm{V}}$ series, which starts at the element (20), extends downward to Cl (17) and probably farther. While none of the points in the new series was obtained from the free elements, the behavior of their semi-Moseley diagrams resembles those of the other $\beta$-satellites. To relate all the $\beta$-satellites to $K{\alpha }_2$ rather than $K{\beta }_1$, as has been customary, is shown to be of great convenience in the experimental study and classification of the $\beta$-satelllites; the physical significance of this mode of representation, however, is problematic.

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