TY - BOOK AU - Huygens,Christiaan AU - Thompson,Silvanus P. TI - Treatise on Light: In which are explained the causes of that which occurs in reflexion, and in refraction and particularly in the strange refraction of Iceland crystal AV - QC PY - 2005/// PB - Project Gutenberg KW - Refraction, Double KW - Wave theory of light N1 - Public domain in the USA; Electronic text UR - http://www.gutenberg.org/ebooks/14725 ER -