Joseph Mallord William Turner

Lecture Diagram: A Triangle

c.1817–28

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In Tate Britain

Prints and Drawings Room

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Artist: Joseph Mallord William Turner 1775–1851
Part of: II. Various Perspective Diagrams
Medium: Graphite and watercolour on paper
Dimensions: Support: 485 × 694 mm
Collection: Tate
Acquisition: Accepted by the nation as part of the Turner Bequest 1856
Reference: D17019
Turner Bequest CXCV 49

Catalogue entry

Made in connection with his lectures as Professor of Perspective at the Royal Acasdemy, this diagram of a triangle may have been used in his later lectures on geometry as there is a related sketch in his notes.1

Turner, ‘Royal Academy Lectures’, circa 1807–38, Department of Western Manuscripts, British Library, London, ADD MS 46151 W folio 8.

Technical notes:

Peter Bower (unpublished notes)1 writes that the sheet is Super Royal size Whatman paper made by Finch and Thomas Robert Hollingworth, at Turkey Mill, Maidstone, Kent.

Notes in Tate catalogue files.

Verso:

Blank, save for an inscription by an unknown hand in pencil ‘46’ bottom left.

Andrea Fredericksen
January 2004

Supported by The Samuel H. Kress Foundation

Revised by David Blayney Brown
January 2012

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