00274    a2200109   4500082001500000100002600015245001100041260004600052300002000098440002600118650002000144  a535.2bSEA  aSears, Francis Weston  aOptics  aMassachusettsbAddison-Wesleyc1949g1949  ax, 386p.c23cm.  aprinciples of physics  aPHYSICAL OPTICS