American writers in the 1830's and 1840's felt the need for a new terminology to express their awakening perception of and "new and " aspects of the mind. Without words like the and "unconscious and " vast areas of the psyche would have remained unexpressed and thus unapproachable. This and "discovery and " of the unconscious constitutes to the theme of this study, which was first published in 1987. This title will be of interest to students of literary theory.