Two compasses, which we placed on the table during one séance, remained unaffected by Dr. Slade's presence. At our last séance with him we noticed two slates which were not with the other slates on the small table behind him, but were on the floor resting against the leg of that table, and within easy reach of his hand as he sat at the larger table. As we had previously seen prepared slates similarly placed we kept a sharp watch on these slates. Unfortunately, it was too sharp. Dr. Slade caught the look that was directed at them. That detected glance was sufficient to prevent the Spirits from sending us the messages which they had so carefully prepared. The slates were not produced during the séance, but when it was over one of our number managed to strike them with his foot so as to displace them and reveal the writing. None of us present that day will be likely to forget the hurried way in which these slates were seized by the Medium and washed. We think it worthy to be recorded that, in reply to a question, Dr. Slade said that Professor Zoellner watched him closely only during the first three or four sittings, but that afterwards Professor Zoellner let him do just as he pleased, fully and unreservedly submitting to all the conditions demanded by the Spirits. We received from Dr. Slade a written expression of his satisfaction with our treatment of him, which had been throughout, so he said, entirely fair and courteous, and of his willingness at any time hereafter to sit with us again, should we desire it and his engagements permit.