[7] I feel bound to call attention to the fact that the directions narrated in this letter were _volunteered_ by the Spirits to Mr. Willets, not sought by him, and they were all strictly correct. They led to this good and serviceable friend being established in Rochester, where he became very useful to us and to the nascent Cause to which the Spirits had called and devoted us. But I am anxious to caution the reader against the error of consulting Spirits for information or direction about _matters of worldly interest_. They will probably get answers, but from mocking and deceptive Spirits, who step in when the good and true ones decline to intervene. It is not the mission of good Spirits to mingle in affairs of mere non-spiritual interest. Beware of what is called "business mediumship," and of directions respecting fortune-making or fortune-telling. Never forget that there are tricksters and liars out of the flesh as well as in it; which is little to be wondered at since so many of that character are daily passing out from the one condition into the other, when they remain for periods often prolonged, _earth-bound_ by their own selfish viciousness. We should never do more than ask good Spirits to guide us by their kindly influences, and then do the best in the situation that we can according to our best lights of conscience and judgment. Nor can we ever transfer to Spirit counsellors our own moral and mental responsibilities.--A. L. U. Before proceeding further I desire at this point to insert in this volume an interesting letter, addressed to the Rochester _Daily Advertiser_, by our friend Mr. John E. Robinson, also, like Mr. Willets, a well-known and distinguished member of the Society of Friends. The controversy on the rapping and the general spiritual manifestations after the public investigation could no longer be suppressed. It became a subject which elicited much comment in the public prints; but in relation to which the Spiritualists had nothing to fear. Their opponents, generally, wrote without ever having examined it; and graded the vehemence of their opposition by the strength of their fealty to the teachings of their leaders. One of these acknowledged leaders was Chester Dewey, D.D., of the Rochester Collegiate Institute, who, without seeking to investigate the subject, claimed to recognize it as a fraud in its inception and wicked in its designs; and thus recorded his opinion in the public press at Rochester. His letters to the Rochester _Daily Advertiser_, at the time, drew forth the following rejoinder by Mr. Robinson, of that city, which was published in the columns of that paper: "THE RAPPING MYSTERY.