We all had occasion to rejoice at the return of Sherlock Holmes when he was supposed to be dead; and I presume we may soon rejoice in his return even when he is really dead. Sir Arthur Conan Doyle, in his widespread new campaign in favour of Spiritualism, ought at least to delight us with the comedy of Holmes as a control and Watson as a medium. But I have for the moment a use for the great detective not concerned with the psychical side of the question. Of that I will only say, in passing, that in this as in many other cases, I find myself in agreement with an authority about where the line is drawn between good and bad, but have the misfortune to think his good bad, and his bad good. Sir Arthur explains that he would lift Spiritualism to a graver and more elevated plane of idealism; and that he quite agrees with his critics that the mere tricks with tables and chairs are grotesque and vulgar. I think this quite true if turned upside down, like the table. I do not mind the grotesque and vulgar part of Spiritualism; what I object to is the grave and elevating part. After all, a miracle is a miracle and means something; it means that Materialism is nonsense. But it is not true that a message is always a message; and it sometimes only means that Spiritualism is also nonsense. If the table at which I am now writing takes to itself wings and flies out of the window, perhaps carrying me along with it, the incident will arouse in me a real intelligent interest, verging on surprise. But if the pen with which I am writing begins to scrawl, all by itself, the sort of things I have seen in spirit writing; if it begins to say that all things are aspects of universal purity and peace, and so on, why, then I shall not only be annoyed, but also bored. If a great man like the late Sir William Crookes says a table went walking upstairs, I am impressed by the news; but not by news from nowhere to the effect that all men are perpetually walking upstairs, up a spiritual staircase, which seems to be as mechanical and labour-saving as a moving staircase at Charing Cross. Moreover, even a benevolent spirit might conceivably throw the furniture about merely for fun; whereas I doubt if anything but a devil from hell would say that all things are aspects of purity and peace.