Psychology and the Central Nervous System.

The Province of Psychology.-In recent psychological 1 This and the two preceding statements should of course be qualified so as to include the simple phenomena occurring in protozoa, which have no nervous system or 'neural activity* properly speaking.In these creatures an equivalent mode of activity is observed, though its structural basis is far less definitely organized.The term specific in the definition is intended to exclude the trophic phenomena of the nerve cells, with which psychology is not directly concerned.'The term adaptation, fitness of result, is not to be confused with adjustment, the linking up of sensory and motor impulses.