The Eighth Lecture of the Course before the Anti-Slavery Society, was delivered, January 14, 1855, at the Tabernacle, New York, by the Rev. Henry Ward Beecher . The subject, at the present time, is one of peculiar interest, as touching the questions of Slavery and Know-Nothingism, and, together with the popularity of the lecturer, drew together a house-full of auditors. There were a number of gentlemen of distinction, occupying seats on the rostrum—among whom were the Hon. Joshua R. Giddings, Ja