Slip and Twinning in Single Crystals of Mercury

Abstract

MR. FISHER is, I expect, right when he points out that the {111} planes are the most closely packed in a mercury single crystal, although I have not the time to check the work. The experiments to which he refers were carried out some years ago, and all notes referring to them were destroyed with my laboratory. Whether he is right in his surmise that the {111} planes may be the glide planes I cannot say. The only way of settling the question satisfactorily is by the X-ray method. I always intended to get the attribution checked in this way, but at the time when the work was done an X-ray set suitable for this purpose had not been installed, as it was later. We were discussing the X-ray determination in my laboratory shortly before the War broke out.