Abstract
1. The existence of hexagonal chromium is confirmed, and conditions for obtaining it are determined. 2. Chromium deposited electrolytically is found to give very broad X-ray diffraction lines. The breadth of the lines is put down to the very finely divided nature of the deposit, and the grain size is estimated. It is found to vary in a regular way with the conditions of electro-deposition. 3. An anomalous distribution of intensity in the X-ray spectra is observed. It is explained on the assumption of the presence of a majority of grains of a particular shape. 4. This last effect is found to be associated with the brilliant type of deposit.

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