A tow days ago a paragrapn 111 the Ilerald, bascd upon what was known to be good authority, announced that Mrs. Abrahaui Lincoln had recently visitorl Boston, and,, incógnito and closely voiled, attended a public scnnre of a well known lidy medium. 011 Washington street, on which occasion the spirit of her lamonted husband appeared and by unmistakable manifestaüons revealed to all present tho identity of Mis. Lincoln, which she hml attempted to keep secret. We havo now the best authorily for for saying that the report was in all respects accurate ; that Mrs. Lincoln did visit Boston on tho 4th inst.; that she look lorlginijs at tho Parks House, registering her name as Mrs. Linder ; that she reinained there ten days, during which tiine sho mado frequent vittit to the niediuin above mentioned, and that whilo at the hotel her identity was discoverod by a person who had often, soen hr in Washington. Sho desired to have her visifc to Boston unknown, but tho injanction to secrecy ceased to be binding after the revelation at the public neance. It is fnrthier stuted by those in a position to know, that tho interviews with the medium were of tho niost satisfactory and conclusivo nature, as affording tests of the presence of the spirit of hor husband. The Iadie8 of Lapoor have undertaken the wnrk of niaking up a deficiency in the frabscripttons froin that town to the Detroit arad Bay City Railroad,. occasioned by a few men efu8Ín to put theil verbal pledges of aid ii black and wbite. That tutans business.