The Portrait of Mr. LINCOLN, accompanying this book, has been engraved, for the Publisher, expressly for it. No labor or expense has been spared to produce a First-Class Engraving. It was executed by H. B. HALL, JR., ESQ., who unquestionably stands in the front rank of American Engravers. The great Painting of "The Last Hours of Lincoln," is now being engraved by Mr. HALL, in the same style. This PORTRAIT of President LINCOLN is pronounced by all to be the most life-like--the best ever engraved of him. It may not be improper to state that I have a letter from his family to that effect, which I refrain to place in print. I will, however, publish a few from persons intimately acquainted with him, selecting from the large number that I have received. Engraved Portrait of President Lincoln. OPINIONS OF HIS FRIENDS. "WASHINGTON, D. C., _June 22, 1868_. "DEAR SIR:-- "I have examined with interest the steel engraving of President LINCOLN published by you. I knew him intimately more than thirty years, being at times a member of his family. "I regard this portrait the happiest likeness--and it conveys to me the most pleasing recollection of ABRAHAM LINCOLN of any that I have seen. "Very truly yours, "J. B. S. TODD. "COL. JOHN B. BACHELDER." * * * * * "TREASURY DEPARTMENT, WASHINGTON, D. C., _July 30, 1868_. "DEAR SIR:-- "I have carefully examined the portrait of the late President, Mr. LINCOLN, engraved by Mr. H. B. HALL, Jr., and published by yourself. The engraving is exceedingly fine, and the _likeness_ is superior to any that I have seen. As a work of Art, it is in the highest degree creditable to Mr. HALL. "Very respectfully, "HUGH McCULLOCH, "_Secretary of the Treasury_. "COL. JOHN B. BACHELDER." * * * * * "WAR DEPARTMENT, _July 30, 1868_. "* * * It is one of the most truthful likenesses of the late President that I have seen. * * * "Yours very truly, "J. M. SCHOFIELD, "_Secretary of War_. "COL. JOHN B. BACHELDER." * * * * * "NAVY DEPARTMENT, _July 30, 1868_. "* * * I think it a correct and satisfactory likeness in all respects. "GIDEON WELLES, "_Secretary of Navy_. "J. B. BACHELDER, ESQ." * * * * * "HEAD-QUARTERS, CORPS OF ENGINEERS, "WASHINGTON, D. C., _July 30, 1868_. "* * * It is a beautiful piece of Art, indeed it is I think quite remarkable, presenting, as it does that characteristic expression of the eye as well as of the features and lines of the face. * * * "I am very truly yours, "A. A. HUMPHREYS, "_Major-General_." A quarto edition of this Engraving has been published, suitable to frame, which will be sent free by mail to any part of the country on the reception of the price. STYLE AND PRICES.