CXIX. Notes on soft X-ray Spectra, particularly of the Fe group elements

Abstract
The paper describes some old unpublished work on the L and M bands of the Fe group metals, and compares the results with new work by Cauchois and Gyorgy and Harvey. A number of differences are discussed. Our results support Farineau's old curves for Cu as against Cauchois', and we are unable to find evidence for the sharp M-emission edges found by Gyorgy and Harvey. Some comment is also given about various suggestions on the general interpretation of soft x-ray levels.