File:PSM V28 D192 Focal distance of a lens from the eye.jpg

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Description Focal distance of a lens from the eye
Date between 1885 and 1886
date QS:P,+1885-00-00T00:00:00Z/8,P1319,+1885-00-00T00:00:00Z/9,P1326,+1886-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 28
Author Unknown authorUnknown author
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