PREFACE. As prefatory to this volume, it may be expedient here to introduce the credentials which I have lately received from the spirit world. With the medium of their communication, Mr. Lanning, of this city, No. 124 Arch St., I have had but little intercourse, knowing him, however, by report, as a good man and a zealous spiritualist. The communication which I owe to his mediumship, was utterly unexpected by me, never having, in any way, hinted to him, directly or indirectly, that it would be desirable to receive such an indication of confidence and approbation. The first and only knowledge which I had of this, to me, stirring appeal, is comprised in the following letter from Lanning. The difference between the style of his own language, though very good for its purpose, and that which he ascribes to the spirits, must corroborate his allegation that this address did not originate in his brain. On submitting the address to my spirit father, he sanctioned the idea of its proceeding from spirits. PHILADELPHIA, June 7, 1855. _Dear Sir_: I send you the following communication, and think it to be an emanation from the spirit life. I feel not a little reluctance in so doing, for it is seldom I can get any thing for others. How it may suit your mind, I do not know, nor do I wish to impose it upon you for any thing worthy your consideration. I would hesitate much to instruct one so much my senior, and whose name I esteem, were it not that I love a cause so near your heart; and I feel that my mind is only the channel through which I have every evidence, the unseen in the spirit life, at times give their thoughts to mortals. I have no idea from what spirit it came, but _know it did not originate in my own brain_. Very truly, yours, J. F. LANNING. TO DR. ROBERT HARE, PHILADELPHIA: _Prof. Robert Hare_—Venerable and much-esteemed friend, it is an unwonted pleasure with us to number you as a leading mind in the ranks of this new and better gospel which is being given to the dwellers of earth. We see the many and perplexing difficulties which, to you, apparently hinder your progress in this path to light and love, and we sympathize with you in all your efforts to unfold your mind and to render it useful and happy.