It is a source of regret that, in our investigations, we have received no aid from unprofessional Mediums; and in dealing with professional Mediums we have been continually distracted by the conflicting estimates in which these Mediums are held among the Spiritualists themselves. There are very, very few professional Mediums, as far as our experience goes, who are accepted by all Spiritualists as free from the reproach of fraud. Indeed one Medium with whom, by the advice of Mr. Hazard, we had a séance, and for whom Mr. Hazard vouched as one of the best of his class, we have seen denounced as a 'liar and a thief.' In the earnestness of our zeal we advertised in the local secular press, and in the leading Spiritualist Journals both East and West, for Independent Slate Writing Mediums, and to this widespread appeal there came but three replies, and of these, two were so remote that the promise of performance held out by the respondents did not, in our opinion, justify so large an outlay of money for traveling expenses as a journey across the Continent involved. This noteworthy reluctance on the part of Mediums to come before us cannot be due to any harsh or antagonistic treatment received at our hands by any Medium. All Mediums have been treated by us with uniform courtesy, and with every endeavor to acquiesce in the 'conditions' imposed or suggested by the Spirits. And yet a well-known Medium in New York, Mrs. Thayer, to whom the Acting Chairman was unknown, and with whom he was at the time having a séance, vehemently asserted that no member of the 'Seybert Commission' should ever have a séance with her, that the whole Commission, one and all, were 'old scoundrels and should never darken her doors,' etc., etc., and confessed that the foundation of her belief was the warning (sent to her by an eminent Medium whose séances the Commission had attended) that she should have nothing to do with 'the Seybert men, that they would do her no good.' Even in instances where Mediums have expressed their willingness to appear before us, we have been embarrassed by demands for compensation which we could not but deem extortionate and, practically, prohibitory; as in the case of Mr. Keeler, the Spiritual Photographer, whose terms will be found in the Appendix, and in that of Dr. Henry Rogers, whose terms were five hundred dollars if he should be successful before us, and the half of that sum if he failed. Although the number of Mediums whose manifestations we have been able to examine has been thus restricted, we feel ourselves justified in giving as a result of our examination of Independent Slate Writing that, whether the agency be Spiritual or Material, its mode of manifestation almost wholly precludes any satisfactory investigation.