The latest edition of the author's classic work in the field of Physical Optics incorporating revisions to the text and illustrations as well as references to recent contributions to the literature. The historical introduction is followed by detailed information clearly presented on all aspects of the subject including Basic Properties of the Electromagnetic Field, Geometrical Theory of Optical Imaging, Elements of the Theory of Aberrations and the Optics of Crystals. Reviews : `Principles of Optics still stands out as the central source of information for any serious student or resear...