Project Gutenberg 2012-07-01 Public domain in the USA. 40 Bidwell, Shelford 1848 1909 Curiosities of Light and Sight Light and the eye -- Colour and its perception -- Some optical defects of the eye -- Optical illusions -- Curiosities of vision. Produced by The Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive.) en Light Vision QC QP Text Browsing: Science - General 226007 226010 2024-08-17T04:23:27.866432 2023-09-17T12:40:13.599151 text/html text/html 222352 2012-07-01T11:13:38 text/html; charset=iso-8859-1 1090990 2012-07-01T11:13:42 text/html; charset=iso-8859-1 application/zip 1328509 2024-08-17T04:23:33.709406 application/epub+zip 1330978 2024-08-17T04:23:29.636438 application/epub+zip 139576 2024-08-17T04:23:28.596423 application/epub+zip 1442104 2024-08-17T04:23:36.608355 application/x-mobipocket-ebook 1407816 2024-08-17T04:23:32.913367 application/x-mobipocket-ebook 223470 2022-09-18T11:25:46.015206 application/x-mobipocket-ebook 182514 182350 2024-08-17T04:23:27.084433 2023-09-17T12:40:12.950161 text/plain; charset=us-ascii text/plain 182245 2012-07-01T11:13:38 text/plain; charset=iso-8859-1 63670 2012-07-01T11:13:40 text/plain; charset=iso-8859-1 application/zip 182260 2012-07-01T11:13:38 text/plain; charset=us-ascii 63647 2012-07-01T11:13:40 text/plain; charset=us-ascii application/zip 19791 2024-08-17T04:23:36.745365 application/rdf+xml 11672 2024-08-17T04:23:28.966377 image/jpeg 2768 2024-08-17T04:23:28.780381 image/jpeg 1218488 2024-08-17T04:23:27.994385 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog