"One peculiarity of almost all the shadow pictures obtained in all these series of experiments is that they have around them the same kind of white drapery which is so familiar to those who have taken part in a materializing seance. Sometimes this drapery is more voluminous than at others; often, when the conditions are good, the form which at first appears with its head encompassed with drapery will appear on the second plate without any drapery. On asking Mr. B-- what explanation he could give for this, he said he did not know, but he believed that the bodily appearance assumed by the spirit was very sensitive and needed to be shielded from currents, which might harm it. But when harmony prevailed they could venture to remove the drapery, and be photographed without it. Whatever may be the value of Mr. B--'s theory, there is little doubt that something is given off from his body which can be photographed. The white mist that appears to emanate from him forms into cloudy folds out of which there protrudes a more or less clearly defined face with human features. Sometimes this white and misty cloud obscures the sitter, at other times it seems to be condensed as if it were in the process of being worked up into a definite form for the completion of which either time or some other conditions were lacking. It was also noticeable that the entity--whoever it may be--which builds up the form, who is giving off sufficient solidity to impress its image upon the plate in the camera, having once created a form, will use it repeatedly without any change of position or expression. This will no doubt seem a great stumbling-block to many. But the fact is as I have stated it, and our first business is to ascertain facts, whether they tell for or against any particular hypothesis. It may be that the disembodied spirit, in order to establish its identity, constructs, out of the 'aura' given off by the photographer or other medium, a mask or cast bearing the unmistakable resemblance to the body which it wore in its sojourn on earth. Having once built it up for use in the studio, it may be easier to employ the same cast again and again instead of building up a new one at each fresh sitting. Upon this point, however, I shall have something to say further on.