Mr. Lamon, aware of the importance of Dr. Smith's testimony, attempts to break the force of it by the _argumentum ad nauseam_. He alludes to Dr. Smith as a gentleman of "slender abilities for the conversion of so distinguished a person, and as having in his zeal composed a heavy tract out of his own head to suit the particular case, and that he afterwards _drew_ the acknowledgment from Mr. Lincoln that it was unanswerable," and that he himself is the only man that can testify of such an admission on the part of Mr. Lincoln. This is all the gratuitous assertion of a man who is driven to the wall for evidence to prove his point. Now John T. Stuart has already testified to Dr. Smith's abilities as a theologian and a metaphysician having few superiors. He testifies to the fact that Dr. Smith's work was not written to suit Mr. Lincoln's case. It was written previously, before Dr. Smith ever saw Mr. Lincoln. Nor is it true that Dr. Smith is the only one who can testify to an admission on the part of Mr. Lincoln of a change of sentiments. There are many residents of Springfield, both ladies and gentlemen, who can testify to this admission. I give one or two letters as a sample. SPRINGFIELD, Dec. 24th, 1872. REV. JAS. REED: DEAR SIR--A short time after the Rev. Dr. Smith became pastor of the First Presbyterian Church in this city, Mr. Lincoln said to me, "I have been reading a work of Dr. Smith on the evidences of Christianity, and have heard him preach and converse on the subject, and I am now convinced of the truth of the Christian religion." Yours truly, N. W. EDWARDS. SPRINGFIELD, Jan. 6th, 1873. REV. J. A. REED: DEAR SIR--Not long after Dr. Smith came to Springfield, and I think very near the time of his son's death, Mr. Lincoln said to me, that when on a visit somewhere, he had seen and partially read a work of Dr. Smith on the evidences of Christianity which had led him to change his views about the Christian religion; that he would like to get that work to finish the reading of it, and also to make the acquaintance of Dr. Smith. I was an elder in Dr. Smith's church, and took Dr. Smith to Mr. Lincoln's office and introduced him, and Dr. Smith gave Mr. Lincoln a copy of his book, as I know, at his own request. Yours, &c., THOS. LEWIS. There are many others who can testify that Mr. Lincoln, both publicly and privately while at Springfield, made the admission of his belief in the truth of the Christian religion. He did it in most unequivocal language, in addresses before the Bible Society and in Sabbath school.