By Paula Findlen ~ Originally published in Hidden Treasure: The National Library of Medicine, 2011. Installments of this lavishly illustrated encyclopedia of the anatomy, physiology,
Tag: optics
Mayerle’s Lithographed International Test Chart, 1907
By Stephen P. Rice ~ Originally published in Hidden Treasure: The National Library of Medicine, 2011. This multilingual eye-test chart, published in 1907, was the