Some of my most curious experiences, concerning which I have not yet published anything in detail, have been in connexion with crystal vision. I happen to know a sensitive--not a professional medium or even a spiritualist--who has physical-phenomena powers of very unusual and indeed probably unique type. Not only can she see in the crystal and get evidential messages by writing seen therein, but the writing or pictures are visible to anyone present. I have seen them myself. As many as six people at a time, myself among them, have seen the same thing, and not one of the six was of suggestible type or had had any hallucinations. All were middle-aged, except one young lieutenant, and we were indeed a rather exceptionally un-neurotic and stodgy lot. But though the things seem objective--I am going to try to photograph them, also the sensitive, in the hope of confirming the Crewe phenomena--they are somehow more or less influenced by the sensitive's own mind, without her conscious knowledge; for, _e.g._, in one message, purporting to come from my father, I was addressed as Arthur, a name which would be natural to the medium who knows me mostly from printed matter and a few letters, but which is entirely inappropriate in relation to my father. Yet a good deal of evidence of identity has come through this sensitive, and this "mixture" does not invalidate the case. Again, a queer feature of this sensitive's powers is that lost objects are frequently found as a result of instructions given in the crystal; and in many of these cases it seems certain that the position of the lost object could not have been known to any incarnate mind, or of course it would not have been left there. In one case it was a valuable ruby; in several others it was Treasury notes. This sensitive also is a medium for very good raps, which all present can hear quite distinctly and which show intelligence, answering questions and so forth.