James Sowerby, The Chromatic Scale, 1 October 1807.
Etching, watercolour and gum arabic. 152 mm x 152 mm. © Photo: Royal Academy of Arts, London.
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The Chromatic Scale, 1 October 1807
James Sowerby (1757 - 1822)
RA Collection: Art
152 mm x 152 mm
A new elucidation of colours, original, prismatic, and material; showing their concordance in three primitives, yellow, red, and blue; and the means of producing, measuring, and mixing them : with some observations on the accuracy of Sir Isaac Newton ... By James Sowerby ... - London: 1809
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