Of the experiments which have been already described we have nothing to say, except that, unless fraud be admitted as having been possible, figures were produced on the plates which could only have got there in some abnormal way. Fraud, however, seems to have been about as impossible as it could be under any circumstances whatever. Mr. Taylor used his own camera. The plates were bought from dealers of repute, and the parcel was opened in view of two witnesses, witnesses above suspicion. Mr. Taylor insisted that he should keep the plates in his own hands until after development, and this caution he relaxed only so far as getting one of those present to lift out from the dark slide the exposed plate and transfer it to the developing dish held by himself, or to transfer a plate from the manufacturer’s package into the dark slide held by his own hand. Unless, therefore, there had been connivance on the part of the “dealers of repute” who supplied the plates, which is out of the question, or the persons present were all of them leagued together to cheat, we are forced to the conclusion that the results were genuine.... A few more words must be given to Mr. Traill Taylor. The importance of his lectures has been dealt with elsewhere, but it can bear emphasising here. Facts, or what appear to be facts, we have in plenty, but the explanation of these facts, except theoretically, is not so common. Anything which sheds even the faintest glimmer on the meaning of these facts is supremely welcome, and this glimmer, or more than glimmer, Mr. Taylor has produced. It will be strange if that “fluorescence” which has been so relied upon for the general theory of fraud should turn out to be the means of demonstrating the opposite. _From LIGHT, May 6th, 1893._ It was not to be expected that Mr. Traill Taylor’s photographs would be left unchallenged. But as it is impossible to impute fraud to Mr. Taylor or his associates, the objectors are thrown back on somewhat flimsy arguments. A letter to the _Christian World_ may perhaps be taken fairly well to represent the kind of argument. The letter is signed “F. Gass.” Of course we know that fraudulent spirit photographs have been plentifully sold, but because there is a large amount of falsehood in the world it does not follow that there is no truth. But let us see how Mr. Taylor is treated by this critic: “Mr. Taylor says these forms were invisible to watchers in the room, and were, therefore, disembodied spirits.” There is no such “therefore” in Mr. Taylor’s address. What he did say was: “In the foregoing I have confined myself as closely as possible to narrating how I conducted a photographic experiment open to every one to make, avoiding stating any hypothesis or belief of my own on the subject generally.”