http://ptolemy.co.uk/history/john-gray-an-appreciation mathematics and philosophy education Thu, 13 May 2010 21:04:56 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://ptolemy.co.uk/history/john-gray-an-appreciation/comment-page-1#comment-27 Bookmarks about Ptolemy Tue, 16 Dec 2008 21:45:11 +0000 http://www.ptolemy.co.uk/blog/?p=107#comment-27 [...] - bookmarked by 1 members originally found by corder on 2008-11-10 John Gray - An Appreciation http://www.ptolemy.co.uk/blog/archives/107 - bookmarked by 3 members originally found by [...] [...] – bookmarked by 1 members originally found by corder on 2008-11-10 John Gray – An Appreciation http://www.ptolemy.co.uk/blog/archives/107 – bookmarked by 3 members originally found by [...]

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