PREFACE TO FIRST EDITION.
Reading edition
The author of this monograph has been incited to its publication by the commendations of three of the most eminent critics and editors of magazines in the United States, to whom it was submitted in manuscript. In this essay, he discusses his subject from a physio-psychical standpoint, and believes that he has kept intact the canons of scientific investigation, observation, and discussion.
“Waveland,” June 8, 1897.