A writer recites an incident in a circle which he once attended, which so thoroughly illustrates the point just made, that we think it worth while to reproduce it here. He says: "On one occasion in particular, we had a remarkable illustration of the detrimental influence of one or two sitters. It occurred at a seance at which a number of mediums were present, and, under ordinary circumstances, successful results would have been practically certain; but this was not an ordinary seance--at least, not in the opinion of one lady who apparently imagined that she had been invited to discover fraud, and that the rest of us were suspicious characters. Up to the moment of her appearance in the circle we were a happy family of sociable folk, and enjoyed a very pleasant season of conversational interchange. When, however, the said lady, accompanied by a friend, joined the company, there was a silence that could be felt. The social temperature fell rapidly--people visibly stiffened and became constrained. The two ladies appeared to feel afraid to speak lest they should say anything that might be used by the mediums, and spoke in monosyllables. Sitting bolt upright, grim and silent, they drew up to the table, and when the phenomena began they displayed no signs of interest. Their 'detective' attitude was so objectionable that even those who had endeavored to thaw out these self-constituted Sherlock Holmeses, gave up the attempt, and, in consequence, what had promised to be a really enjoyable evening, proved one of the most uncomfortable it has been our lot to experience." Antagonistic Elements. Another incident of the kind is related by a writer, as follows: "On one occasion, when some experiments were being made by a medium, under control, in the direction of psychometry and clairvoyance, a lady expressed a desire to be the subject for delineation. After one or two efforts the medium exclaimed, 'I am very sorry, but for some reason I am quite unable to get anything from you, or for you.' Shortly afterwards the lady in question remarked to one of the sitters, 'I knew he would not be able to give me anything. That is the third medium that I have knocked out.' The failure to obtain results under such impossible conditions is a proof of the genuine psychic nature of the powers of the mediums. If they were pretenders they would succeed in doing something under any circumstances and in spite of such adverse psychic conditions." While we are far from holding that the sitters in a circle should lay aside all ordinary caution and good judgment, and instead to assume the mental attitude of utter and unquestioning credulity and acceptance, we do positively declare that the mental state of preconceived distrust and suspicion is often almost fatal to the production and demonstration of the highest manifestations of spirit phenomena. The Open Mind.