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Note on some generally accepted Views regarding Vision

Published online by Cambridge University Press:  15 September 2014

W. Peddie
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Extract

The following beliefs regarding vision meet with very general acceptance:—

First. Very intense light of any wave-length produces practically the sensation of whiteness.

Second. Very weak light of any wave-length produces practically the sensation of whiteness.

Third. A coloured area of normal brightness retains its colour, though with diminished purity, when gazed at steadily for a long time.

Fourth. Small, faintly luminous, objects are seen more easily by indirect vision than by direct vision.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 25 , Issue 2 , 1906 , pp. 948 - 951
Copyright
Copyright © Royal Society of Edinburgh 1906

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