Joseph Mallord William Turner

Inscription by Turner: Notes on Reflected Light


In Tate Britain

Prints and Drawings Room

View by appointment
Joseph Mallord William Turner 1775–1851
Pen and ink on paper
Support: 115 × 88 mm
Accepted by the nation as part of the Turner Bequest 1856
Turner Bequest CVIII 76 a

Catalogue entry

The whole page is taken up with the following notes:
cannot counteract each other without | supposing each ray [?Eminated] from the Sun | [?to perspective upon ...] the power of [...] | light, but allowing the system of concen | [?trating] light or [?concentrary] light | each ray must pass each other and | therefore tend to destroy what must | give as many shadows and what on | the water is on the other hand con[...] | on glass it would imply some con- | [...], and see the rays of the sun | are as wide as the Sun on the water | but we do not and it is inverted like | the moon visage but in casting an | inverted reflection makes it approach | theoreticly to the Theory of glass which would | inverted the likeness of every objects to our | vision, [?if rather adding] to the [...] of
The passage is part of a sequence of notes and diagrams which runs back from folio 79 verso (D07487) to folio 72 verso (D07473). The previous page of notes is folio 77 verso (D07483), and the next is folio 75 verso (D07479); there is a diagram on the recto of the present leaf (D07480), to which the text is related. The semi-diagrammatic drawing of a boat on folio 81 verso (D07491) also appears to belong with these notes, concerned with sunlight or light in general in terms of reflections and the casting of light and shadow from polished objects or bodies of water. They relate to Turner’s fifth Royal Academy perspective lecture, on reflection and refraction.
Maurice Davies has registered most of the notes from folio 91 verso (D07511) to folio 72 verso as ‘on light and shadow’;1 those from folio 91 verso to folio 82 verso (D07493) are distinct, dealing with sunlight as parallel or divergent rays.

Matthew Imms
June 2008

Davies 1994, p.289.

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