Diagnostic experiment using visual persistence
Date
1854
Creator
William Scoresby (1789 - 1857, British) , British Arctic scientist
Object type
Archive reference number
Material
Dimensions
height (painting): 195mm
width (painting): 125mm
width (painting): 125mm
Subject
Description
Image of a window retained on human retinas when viewed through right and left eyes in turn. The defects in the image (circular and triangular patches on the window-panes) were used by the author as a means of assessing irregularities in each retina in a case of amaurosis.
Unpublished illustration from the manuscript version of the paper “An enquiry into some of the circumstances and principles which regulate the production of pictures on the retina...part 2” by William Scoresby. The text was abstracted in Proceedings of the Royal Society of London, vol.7 (1854), pp.117-122. The paper and illustration accompanied a letter from William Scoresby, Torquay 12 June 1854, to William Parsons, the 3rd Earl of Rosse, in which the case is discussed.
Signed lower left in ink, ‘W.Scoresby, Del.’
William Scoresby junior (1789-1857) was elected a Fellow of the Royal Society in 1824.
Unpublished illustration from the manuscript version of the paper “An enquiry into some of the circumstances and principles which regulate the production of pictures on the retina...part 2” by William Scoresby. The text was abstracted in Proceedings of the Royal Society of London, vol.7 (1854), pp.117-122. The paper and illustration accompanied a letter from William Scoresby, Torquay 12 June 1854, to William Parsons, the 3rd Earl of Rosse, in which the case is discussed.
Signed lower left in ink, ‘W.Scoresby, Del.’
William Scoresby junior (1789-1857) was elected a Fellow of the Royal Society in 1824.
Associated place