One feature of the trial of Buguet should be carefully borne in mind. Spiritualists are very fond of assuring us that the spirit voice or message or photograph they obtained from a medium was "perfectly recognizable." They scout any suggestion that they could be mistaken. Do they not know the features of their dead son or daughter or wife? During the trial of Buguet scores of these Spiritualists entered the witness-box and swore that they had received exact likenesses of their dead relatives. But Buguet, hoping to get a lighter sentence, confessed that the same group of heads had served every purpose, and the witnesses in his favour were all wrong![11] Buguet got a year in prison, and for a time trade was poor. But new methods were invented, and spirit photographers are again at work all over the world, and have been for decades. In country places the old method may still be followed. Generally, however, the sitter brings his or her own plate, and is then supposed to be secured against fraud. The next development was easy enough. A prepared plate was substituted for the plate you brought. This trick in turn was discovered, and sitters began to make secret marks on the plates they brought, in order to identify them afterwards. Then the machinery of the ghost was rigged up in the camera itself, and you might bring your own plate and mark it unmistakably with a diamond, if you liked. The ghost appeared on it when it was developed. There were several ways of doing this. The first was to cut out the figure of the ghost in celluloid or some other almost transparent material and attach it to the lens. When this trick leaked out, a very tiny figure of the ghost, hidden in the camera, was projected through a magnifying glass (a kind of small magic-lantern) on to the plate when it was exposed in the camera. As time went on, sitters began to insist on examining the camera, and these tricks were apt to be discovered. I remember an honest and critical Spiritualist telling me, about ten years ago, that he offered a certain spirit-photographer (who is still at work) five pounds for a spirit-photograph, if the sitter were permitted to see every step of the process. The photographer agreed; but when my friend wanted to examine the camera he at first bluffed, and then returned the money, saying that that was carrying scepticism too far! He had the ghost in his camera.