File:Zoonomia Fig4.png

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Description Fig 4. After having looked about a minute on the center of these circles, in a bright light, the spectrum of the external area appears first in the closed eye, then the middle area, and lastly the central one; and then the central one disappears, and the others in inverted order.
Date
Source Zoonomia, or, the Laws of Organic Life, Second Edition, Volume I., available freely at Project Gutenberg
Author Erasmus Darwin


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current19:07, 3 January 2011Thumbnail for version as of 19:07, 3 January 2011400 × 400 (1 KB)Keith Edkins{{Information |Description=Fig 4. After having looked about a minute on the center of these circles, in a bright light, the spectrum of the external area appears first in the closed eye, then the middle area, and lastly the central one; and then the centr

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