(1) In primitive villages in the West of England the belief that the absent may be seen in a piece of crystal is, or was not many years ago, by no means an uncommon superstition. I have seen more than one of these magic mirrors, which Spenser, by the way, has beautifully described. They are about the size and shape of a swan's egg. It is not every one, however, who can be a crystal-seer; like second-sight, it is a special gift. N. B.--Since the above note (appended to the first edition of this work) was written, crystals and crystal-seers have become very familiar to those who interest themselves in speculations upon the disputed phenomena ascribed to Mesmerical Clairvoyance.