"This book attempts to do two things: to give a critical estimate of the American poetry of the last fifty years; and to supply at the same time the setting, national and cultural, without which such an estimate must necessarily be thin or meaningless. . . . If it be asked where all this poetry tends, what it means as to the drift of American life, certain answers can be given. In the first place it is a drift away from New England. . . . And if this drift alarms the reader, let him take some comfort in this thought: though there is more danger here, more imagination than prudence, there is, too, more excitement and more joy."--From the Preface.