The experiments on intelligent persons, by which these discoveries were made and demonstrated, have been repeated many thousand times. They have been officially presented during many years in medical colleges, and sanctioned by scientific faculties as well as by committees of investigation, none of which have ever made an unfavorable report. They have been tested and demonstrated so often that further repetition appeared needless, since the unquestioned demonstrations produced no result beyond a passive assent; for men's minds are generally so firmly held in the bondage of habit, fashion, and inherited opinion, as to be incapable of entering freely upon a new realm of intellectual life without pecuniary motive; and investigating committees accomplished little or nothing important, the reason having been, as assigned by a distinguished and learned secretary of a medical committee in Boston, that the subject was too profound, too difficult, and too far beyond the knowledge of the medical profession. In the presence of such unmanly apathy my demonstrations were discontinued, as I found that only a few high-toned and fearless seekers of scientific truth, such as the venerable Prof. Caldwell, President Wylie, Rev. John Pierpont, Robert Dale Owen, Prof. Gatchell, Dr. Forry, and a score or two of similarly independent men and women, have spoken to the public with proper emphasis of the immortality of the discovery and the greatness of the total revolution that it makes in science and philosophy,--a revolution so vast as to require many pages to give its mere outline, and several volumes to give its concise presentation. The subjects of these volumes would necessarily be Cerebral Psychology, Cerebral Physiology, Psychological Ethics or Religion, Pneumatology, Psychic Pathology, Sarcognomy, Psychometry, Education, and Pathognomy. A _very concise_ epitome of the whole subject in 400 pages was published in 1854, as a "System of Anthropology." "The New Education" was published in 1882. "Therapeutic Sarcognomy"--the application of sarcognomy to medical practice--was published in 1884, and the "Manual of Psychometry" in 1885.