A meeting was held at the State House on Wednesday evening, the 22d ult. for the purpose of considering the letters of Mr. Clay, Mr. Van Buren and Mr. Benton upon the question of immediate Annexation. The meeting was addressed by Mr. Lincoln, who briefly reviewed the grounds taken by those distinguished gentlemen, concurring with them in the opinion, that Annexation at this time upon the terms agreed upon by John Tyler was altogether inexpedient. . . .