Springfield, Oct. 3, 1842. To the Editor op "The Sangamon Journal."

Sir,—To prevent misrepresentation of the recent affair between Messrs. Shields and Lincoln, I think it proper to give a brief narrative of the facts of the case, as they came within my knowledge; for the truth of which I hold myself responsible, and request you to give the same publication. An offensive article in relation to Mr. Shields appeared in "The Sangamon Journal" of the 2d September last; and, on demanding the author, Mr. Lincoln was given up by the editor. Mr. Shields, previous to this demand, made arrangements to go to Quincy on public business; and before his return Mr. Lincoln had left for Tremont, to attend the court, with the intention, as we learned, of remaining on the circuit several weeks. Mr. Shields, on his return, requested me to accompany him to Tremont; and, on arriving there, we found that Dr. Merryman and Mr. Butler had passed us in the night, and got there before us. We arrived in Tremont on the 17th ult.; and Mr. Shields addressed a note to Mr. Lincoln immediately, informing him that he was given up as the author of some articles that appeared in "The Sangamon Journal" (one more over the signature having made its appearance at this time), and requesting him to retract the offensive allusions contained in said articles in relation to his private character. Mr. Shields handed this note to me to deliver to Mr. Lincoln, and directed me, at the same time, not to enter into any verbal communication, or be the bearer of any verbal explanation, as such were always liable to misapprehension. This note was delivered by me to Mr. Lincoln, stating, at the same time, that I would call at his convenience for an answer. Mr. Lincoln, in the evening of the same day, handed me a letter addressed to Mr. Shields. In this he gave or offered no explanation, but stated therein that he could not submit to answer further, on the ground that Shields's note contained an assumption of facts and also a menace. Mr. Shields then addressed him another note, in which he disavowed all intention to menace, and requested to know whether he (Mr. Lincoln) was the author of either of the articles which appeared in "The Journal," headed "Lost Townships," and signed "Rebecca;" and, if so, he repeated his request of a retraction of the offensive matter in relation to his private character; if not, his denial would be held sufficient. This letter was returned to Mr. Shields unanswered, with a verbal statement "that there could be no further negotiation between them until the first note was withdrawn." Mr. Shields thereupon sent a note designating me as his friend, to which Mr. Lincoln replied by designating Dr. Merryman. These three last notes passed on Monday morning, the 19th. Dr. Merryman handed me Mr. Lincoln's last note when by ourselves. I remarked to Dr. Merryman that the matter was now submitted to us, and that I would propose that he and myself should pledge our words of honor to each other to try to agree upon terms of amicable arrangement, and compel our principals to accept of them. To this he readily assented, and we shook hands upon the pledge. It was then mutually agreed that we should adjourn to Springfield, and there procrastinate the matter, for the purpose of effecting the secret arrangement between him and myself. All this I kept concealed from Mr. Shields. Our horse had got a little lame in going to Tremont, and Dr. Merryman invited me to take a seat in his buggy. I accepted the invitation the more readily, as I thought, that leaving Mr. Shields in Tremont until his horse would be in better condition to travel would facilitate the private agreement between Dr. Merryman and myself. I travelled to Springfield part of the way with him, and part with Mr. Lincoln; but nothing passed between us on the journey in relation to the matter in hand. We arrived in Springfield on Monday night. About noon on Tuesday, to my astonishment, a proposition was made to meet in Missouri, within three miles of Alton, on the next Thursday! The weapons, cavalry broadswords of the largest size; the parties to stand on each side of a barrier, and to be confined to a limited space. As I had not been consulted at all on the subject, and considering the private understanding between Dr. Merryman and myself, and it being known that Mr. Shields was left at Tremont, such a proposition took me by surprise. However, being determined not to violate the laws of the State, I declined agreeing upon the terms until we should meet in Missouri. Immediately after, I called upon Dr. Merryman, and withdrew the pledge of honor between him and myself in relation to a secret arrangement. I started after this to meet Mr. Shields, and met him about twenty miles from Springfield. It was late on Tuesday night when we both reached the city, and learned that Dr. Merryman had left for Missouri, Mr. Lincoln having left before the proposition was made, as Dr. Merryman had himself informed me. The time and place made it necessary to start at once. We left Springfield at eleven o'clock on Tuesday night, travelled all night, and arrived in Hillsborough on Wednesday morning, where we took in Gen. Ewing. From there we went to Alton, where we arrived on Thursday; and, as the proposition required three friends on each side, I was joined by Gen. Ewing and Dr. Hope, as the friends of Mr. Shields.

We then crossed to Missouri, where a proposition was made by Gen. Hardin and Dr. English (who had arrived there in the mean time as mutual friends) to refer the matter to, I think, four friends for a settlement. This I believed Mr. Shields would refuse, and declined seeing him; but Dr. Hope, who conferred with him upon the subject, returned, and stated that Mr. Shields declined settling the matter through any other than the friends he had selected to stand by him on that occasion. The friends of both the parties finally agreed to withdraw the papers (temporarily) to give the friends of Mr. Lincoln an opportunity to explain. Whereupon the friends of Mr. Lincoln, to wit, Messrs. Merryman, Bledsoe, and Butler, made a full and satisfactory explanation in relation to the article which appeared in "The Sangamon Journal" of the 2d, the only one written by him. This was all done without the knowledge or consent of Mr. Shields; and he refused to accede to it until Dr. Hope, Gen. Ewing, and myself declared the apology sufficient, and that we could not sustain him in going further. I think it necessary to state further, that no explanation or apology had been previously offered on the part of Mr. Lincoln to Mr. Shields, and that none was ever communicated by me to him, nor was any ever offered to me, unless a paper read to me by Dr. Merryman after he had handed me the broadsword proposition on Tuesday. I heard so little of the reading of the paper, that I do not know fully what it purported to be; and I was the less inclined to inquire, as Mr. Lincoln was then gone to Missouri, and Mr. Shields not yet arrived from Tremont. In fact, I could not entertain any offer of the kind, unless upon my own responsibility; and that I was not disposed to do after what had already transpired.

I make this statement, as I am about to be absent for some time, and I think it due to all concerned to give a true version of the matter before I leave.

Your obedient servant,

John D. Whiteside.

To which Mr. Merryman replied:—

Springfield, Oct. 8, 1842.

Editors of "The Journal."

Gents,—By your paper of Friday, I discover that Gen. Whiteside has published his version of the late affair between Messrs. Shields and Lincoln. I now bespeak a hearing of my version of the same affair, which shall be true and full as to all material facts.