Publisher's Synopsis
The methods which the fictitious Trant -- one time assistant in a psychological laboratory, now turned detective -- here uses to solve the mysteries which present themselves to him, are real methods; the tests he employs are real tests. Though little known to the general public, they are precisely such as are being used daily in the psychological laboratories of the great universities -- both in America and Europe -- by means of which modern men of science are at last disclosing and denning the workings of that oldest of world-mysteries -- the human mind. Joslyn lifted a stiletto letter-opener from the desk and tried to separate, so as to read, the carbonized ashes left in the tray. They fell into a thousand pieces; and as he gave up the hopeless attempt to decipher the writing on them, suddenly the young assistant bent before the couch, slipped his hand under the body, and drew out a crumpled pape
