We cannot say much in praise of the plot of "John Brent," but it at least enables the author to supply a good framework for his incidents, descriptions, and characters. The plot is based rather on possibilities than probabilities; but the men and women he depicts are thoroughly natural. It would be difficult to point to any other American novel which furnishes incidents that can compare in vigor and vividness with some of the incidents in this romance. The ride to rescue Helen Clitheroe from her kidnappers is a masterpiece, worthy to rank with the finest passages of Cooper or Scott. The fierce, swift black stallion, "Don Fulano," a horse superior to any which Homer has immortalized, is almost the hero of the romance. That Winthrop, with all his sympathy with the "advanced" ideas and sentiments of the reformers and philanthropists of the time, was not a mere prattling and scribbling sentimentalist, is proved by his glorious idealization of this magnificent horse. He raises the beast into a moral and intellectual sympathy with his human rider, and there is a poetic justice in making him die at last in an attempt to further the escape of a fugitive slave. The characterization of the book is original. Gerrian, Jake Shamberlain, Armstrong, Sizzum, the Mormon preacher, are absolutely new creations. Hugh Clitheroe may suggest Dickens's Skimpole and Hawthorne's Clifford, but the character is developed under entirely new circumstances. As for Wade and Brent, they are persons whom we all recognize as the old heroes of romance, though the conditions under which they act are changed. Helen, the heroine of the story, is a more puzzling character to the critic; but, on the whole, we are bound to say that she is a new development of womanhood. The author exhausts all the resources of his genius in giving a "local habitation and a name" to this fond creation of his imagination, and he has succeeded. Helen Clitheroe promises to be one of those "beings of the mind" which will he permanently remembered.