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National Science and Media Museum blog

What do you get if you mix the talent of a world-class photographer with the support of two national institutions and a successful fellowship programme? In this instance, our future exhibition Outposts: Donovan Wylie.

The New Chrysotype Process is so named in honour of Sir John Herschel who, in his classic paper of 1842 (1), first coined the term chrysotype to describe the photochemical production of an image in colloidal gold metal.