File:Page 423 from William Porterfield, A treatise on the eye (1759).jpg
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| Description |
English: Page 423 from "A treatise on the eye, the manner and phaenomena of vision" by William Porterfield, Published 1759 in Edinburgh. In this book the word "optometer" appears for the fist time. |
| Date | |
| Source |
Original publication: Porterfield, W. (1759). A treatise on the eye, the manner and phaenomena of vision. Edinburgh: A. Miller, G. Hamilton and J. Balfour. |
| Author |
William Porterfield |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| current | 16:49, 27 April 2013 | | 2,063 × 3,521 (631 KB) | Antonio Calossi | {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Page 423 from "A treatise on the eye, the manner and phaenomena of vision" by William Porterfield, Published 1759 in Edinburgh. In this book the word "optometer" appears for th... |
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