Note 0k — Introduction By Marcus Hartog, M.A., D.Sc., F.L.S., F.R.H.S.

Semon’s technical terms are exclusively taken from the Greek, but as experience tells that plain men in England have a special dread of suchlike, I have substituted “imprint” for “engram,” “outcome” for “ecphoria”; for the latter term I had thought of “efference,” “manifestation,” etc., but decided on what looked more homely, and at the same time was quite distinctive enough to avoid that confusion which Semon has dodged with his Græcisms.