00274nam a2200109 a 450000500170000008200150001710000180003224500400005026000430009030000170013363000140015020251202164137.0  a135.4bMCD  aMcDavid,  W D  aIntroduction to esoteric principles  aWheatonbTheosophical Pub. Housec1977  a92p.c24 cm.  aMysteries