References
How to cite
Andrea Fredericksen, ‘Lecture Diagram: ‘Euclid’s Elements of Geometry’, Plane Trigonometry, Proposition 7 c.1817–28 by Joseph Mallord William Turner’, catalogue entry, June 2004, revised by David Blayney Brown, January 2012, in David Blayney Brown (ed.), J.M.W. Turner: Sketchbooks, Drawings and Watercolours, Tate Research Publication, December 2012, https://www