During this period also I commenced (and completed soon after I had left Parliament) the performance of a duty to philosophy and to the memory of my father, by preparing and publishing an edition of the _Analysis of the Phenomena of the Human Mind_, with notes bringing up the doctrines of that admirable book to the latest improvements in science and in speculation. This was a joint undertaking: the psychological notes being furnished in about equal proportions by Mr. Bain and myself, while Mr. Grote supplied some valuable contributions on points in the history of philosophy incidentally raised, and Dr. Andrew Findlater supplied the deficiencies in the book which had been occasioned by the imperfect philological knowledge of the time when it was written. Having been originally published at a time when the current of metaphysical speculation ran in a quite opposite direction to the psychology of Experience and Association, the _Analysis_ had not obtained the amount of immediate success which it deserved, though it had made a deep impression on many individual minds, and had largely contributed, through those minds, to create that more favourable atmosphere for the Association Psychology of which we now have the benefit. Admirably adapted for a class book of the Experience Metaphysics, it only required to be enriched, and in some cases corrected, by the results of more recent labours in the same school of thought, to stand, as it now does, in company with Mr. Bain's treatises, at the head of the systematic works on Analytic psychology.