Color-blindness : its dangers and its detection / by B. Joy Jeffries.

  • Jeffries B. Joy (Benjamin Joy), 1833-1915.
Date:
1879
Catalogue details

Licence: Public Domain Mark

Credit: Color-blindness : its dangers and its detection / by B. Joy Jeffries. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    Institute at Washington. This, of course, prevented any publisher from being wilhng to risk a complete translation. The very necessary explanatory colored plate was not given in the Smithsonian translation. I understand that it wUl be in an extra edition. This Enghsh ti-anslation is so abridged as to gi-eatly inter- fere with its value and its practical use. Had, however, I been enabled to reproduce Professor Holmgren's book entire, I am afraid it would not have accomphshed its purpose so well in this country as in Europe, from the general lower tone of scientific knowl- edge on the part of those for whom it was especially written, and also the lack of just the persons — namely, the railroad-surgeons—who could make immediate ap- plication of the method for detecting color-blindness, and have convinced the authorities of its necessity. Aside, also, from the difficulties of pubhcation, I found that a simple translation was not likely to be so gener- ally read. To bring before the community the dangers and the prevalence of color-bhndness, I thought it best to prosecute my researches amongst the places of learn- ing and teaching. Hence I chose our immediate uni- versities, colleges, and pubUc schools. Thus, whilst I was ]Dursuing my own individual studies of color-blind- ness, I was at the same time gathering the necessarj' sta- tistics in proof of the position I took, and disseminating a knowledge of the whole subject, very especially the important one of its frequency. It is rather curious that this volume is only the third monograph in book- form on this subject. Professor Wilson of Edinbm-gh published in 1855 a small book, being a collection of his several articles on this subject. Yet the literature of normal and abnormal chromatic power is pretty ex-