We should also observe that, in psychometry, only those events can be perceived which relate directly to the individual communicating with the percipient, for it is not so much the percipient that sees into us as we that read in our own subconsciousness, which is momentarily lighted by his presence. We must not therefore ask him for predictions of a general character, whether, for instance, there will be a war in the spring, an epidemic in the summer or an earthquake in the autumn. The moment the question concerns events, however important, with which we are not intimately connected, he is bound to answer, as do all the genuine mediums, that he sees nothing. The area of his vision being thus limited, does he really discover the future in it? After three years of numerous, cautious and systematic experiments with some twenty mediums, Dr. Osty categorically declares that he does: “All the incidents,” he says, “which filled these three years of my life, whether wished for by me or not, or even absolutely contrary to the ordinary routine of my life, had always been foretold to me, not all by each of the clairvoyant subjects, but all by one or other of them. As I have been practising these tests continually, it seems to me that the experience of three years wholly devoted to this object should give some weight to my opinion on the subject of predictions.” This is incontestable; and the sincerity, scientific conscientiousness and high intellectual value of Dr. Osty’s fine work inspire one with the utmost confidence. Unfortunately, he contents himself with quoting too summarily a few facts and does not, as he ought, give us _in extenso_ the details of his experiments, controls and tests. I am well aware that this would be a thankless and wearisome task, necessitating a large volume which a mass of puerile incidents and inevitable repetitions would make almost unreadable. Moreover, it could scarcely help taking the form of an intimate and indiscreet autobiography; and it is not easy to bring one’s self to make this sort of public confession. But it has to be done. In a science which is only in its early stages, it is not enough to show the object attained and to state one’s conviction; it is necessary above all to describe every path that has been taken and, by an incessant and infinite accumulation of investigated and attested facts, to enable every one to draw his own conclusions. This has been the cumbrous and laborious method of the _Proceedings_ for over thirty years; and it is the only right one. Discussion is possible and fruitful only at that price. In all these extra-conscious matters, we have not yet reached the stage of definite deductions, we are still bringing up materials to the scene of operations.