... the Northern disunion movement determined to proceed with their proposed convention of the free States. The circular call was issued in July. It was signed by T. W. Higginson, Wendell Phillips, Daniel Mann , W. L. Garrison, and F. W. Bird—the editor of Liberator going far beyond the language of it, since it proposed merely an inquiry into the practicability and expediency of disunion, and commit...