Ferritin crystal, diffraction pattern

X-ray diffraction patterns have been worked out by Fankuchen (8) with the Debye-Scherrer powder method, which, because of the cubic nature of the crystals were quite helpful in some respects for the interpretation of the structure. Fankuchen obtained patterns reconcilable with a face-centered cubic unit cell, and the pattern was the same both in ferritin and in apoferritin. The distances of the lines were the same, but there was a difference in the intensities of some lines, those of ferritin being more intense than those of apoferritin. This seems to show, once... 

---