Memory is like the wind--no one knows where it comes fom or where it goes to when it is away. A witty man once suggested that it must be situated in the back of the head becuase whenever anyone struggled to remember a particular date or event he usually scratched there. <P>Memory as a storehouse of enriching thoughts memory as an aid to success memory as a cause of pain through misuse self-conscious memory as a dinvine act of creation are but a few fascinating phases of memory which Professor Phelps treats of in his enlivening little volume.