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Long Memory has posted 2 annotations/comments since 2 February 2014.

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About Monday 11 February 1660/61

Long Memory  •  Link

Re Pepys' use of the word 'perspective' for a glass lens, this is remembered in the trade name for acrylic 'glass' in Britain i.e. 'perspex' (marketed as 'plexiglass' or 'lucite', in the USA).