books.google.co.in - One of the most readable of all the great classics of physical science, Opticks presents a comprehensive survey of 18th-century knowledge of light. Newton describes his experiments with spectroscopy, colors, lenses, reflection, refraction, and more, in language lay readers can easily follow. Based upon...http://books.google.co.in/books/about/Optics.html?id=iTpXLrPR2TQC&q=thin+Plates&utm_source=gb-gplus-shareOptics
