Its publication now in pamphlet form is due to its delivery at Harper's Ferry, W. Va., on Decoration day, 1881, and to the fact that the proceeds from the sale of it are to be used toward the endowment of a John Brown Professorship in Storer College, Harper's Ferry-an institution mainly devoted to the education of colored youth. That such an address could be delivered at such a place, at such a time, is strikingly significant, and illustrates the rapid, vast and wonderful changes through which the American people have been passing since 1859. Twenty years ago Frederick Douglass and others were mobbed in the city of Boston, and. driven from Tremont Temple for uttering sentiments concerning. John Brown similar to those contained in this address. Yet now he goes freely to the very spot where John Brown committed the offense which caused all Virginia to clamor for his life, and without reserve or qualification, commends him as a hero and martyr in the cause of liberty.