Made in connection with Turner’s lectures as Professor of Perspective at the Royal Academy, this diagram is related to a sketch in a manuscript used for lecturing on geometry.1 There, Turner describes a method for finding ‘the diameter of the earth’ in order to discuss ‘a natural kind of trigonometry of vision’.
Turner, ‘Royal Academy Lectures’, circa 1807–38, Department of Western Manuscripts, British Library, London, ADD MS 46151 X folio 29.
Blank, save for an inscription by an unknown hand in pencil ‘168’ bottom left.
Supported by The Samuel H. Kress Foundation
- symbols & personifications(7,228)
- emotions, concepts and ideas(15,768)