In his preface, the author explains the rationale for the book, and summarises as follows: "I have tried to show that beneath an appearance of confusion, incoherence, and promiscuity, there is, from the morbid to the normal, from the complex to the simple, a conducting thread which will always bring us back to the point of origin."
Théodule-Armand Ribot (1839–1916), French psychologist, is principally known for his "Ribot's Law" regarding retrograde amnesia. His main interest was in the genetic, or inherited, psychological peculiarities.
Our copy is a first UK edition (1897), (presumably originally in French, but with no translator credited). Bound in dark red fine cloth, somewhat faded on the spine, with gilt lettering and an impressed band with medallion on front and spine, it is in remarkably good condition, with just some minor rubbing on the spine angles, light bumping of corners, and minimal shelf wear to top & tail of the spine. Text block top edge is darkened, and a small red stain is on the long edge, but otherwise there are no external blemishes. Inside, endpapers are a little grubby, but the binding is generally firm (a slight weakness in the advertisement section at the back - see photo); no loose pages, and all pages are generally clean and bright apart from some very occasional foxing spots on the first and last few pages.