Report of the examination of 27,927 school children for color-blindness / by B. Joy Jeffries.

  • Jeffries, B. Joy (Benjamin Joy), 1833-1915.
Date:
1880
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Report of the examination of 27,927 school children for color-blindness / by B. Joy Jeffries. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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Boston : Rockwell and Churchill, city printers, 1880.

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9 pages ; 23 cm.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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