The gentleman to whom we shall now call attention is one of this class, and doubtless the first of his race in America. The name of Frederick Douglass is well known throughout this country as well as America. Born and brought up as a slave, he was deprived of a mother's care and of early education. Escaping when he was little more than twenty years of age, he was thrown upon his own resources in the free states, where prejudice against colour is but another name for slavery. But during all this time he was educating himself as well as circumstances would admit. Mr. Douglass commenced his career as a public speaker some ten years since, as an agent of the American or Massachusetts Anti-Slavery Societies. He is tall and well made. His vast and well-developed forehead announces the power of his intellect. His voice is full and sonorous. His attitude is dignified, and his gesticulation is full of noble simplicity. He is a man of lofty reason, natural, and without pretension, always master of himself, brilliant in the art of exposing and of abstracting. Few persons can handle a subject with which they are familiar better than Mr. Douglass. There is a kind of eloquence issuing from the depth of the soul, as from a spring, rolling along its copious floods, sweeping all before it, overwhelming by its very force, carrying, upsetting, engulphing its adversaries, and more dazzling and more thundering than the bolt which leaps from crag to crag. This is the eloquence of Frederick Douglass. He is one of the greatest mimics of the age. No man can put on a sweeter smile or a more sarcastic frown than he: you cannot put him off his guard. He is always in good humour. Mr. Douglass possesses great dramatic powers; and had he taken up the sock and buskin, instead of becoming a lecturer, he would have made as fine a Coriolanus as ever trod the stage.