Color Names Color Blindness And The Education Of The Color Sense In Our Schools
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Color Names Color Blindness And The Education Of The Color Sense In Our Schools
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Author : Benjamin Joy Jeffries
language : en
Publisher:
Release Date : 1882
Color Names Color Blindness And The Education Of The Color Sense In Our Schools written by Benjamin Joy Jeffries and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1882 with Color blindness categories.
Color Names Color Blindness And The Education Of The Color Sense In Our Schools Classic Reprint
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Author : Benjamin Joy Jeffries
language : en
Publisher: Forgotten Books
Release Date : 2017-05-18
Color Names Color Blindness And The Education Of The Color Sense In Our Schools Classic Reprint written by Benjamin Joy Jeffries and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-18 with Psychology categories.
Excerpt from Color-Names, Color-Blindness, and the Education of the Color-Sense in Our Schools Investigation of a railroad accident in Sweden, supposed to be due to color-blindness, led Dr. F. Holmgren, professor of physiology in the University of Upsala, to the belief that the defect must be ftc quent, and hence dangerous on both land and sea. Difficulty arose as to any certain method of detecting it quickly. The absence of any such method has been the especial reason why the defect has hitherto escaped observation. Using the theory of young-helmholtz, and applying a test suggested by Seebeck, he finally brought out his now well-known method with the colored worsteds. By this, and the imitations of it devised here and there, large numbers of persons have been examined all over the world, including both sexes, all colors, ages, and degrees of civilizations, etc. It is a curious fact, that till the expert could test quickly and accurately, the existence of color blindness to the extent now proved remained unknown. It is now admitted that four per cent. Of males are more or less color-blind, and in females not over one-fourth of one per cent. Are thus affected. My own tests, up to the time of writing this, are of males 801 were color-blind, whilst I found but 1 1 females among defect ive in their chromatic sense. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Report Of The Examination Of 27 927 School Children For Color Blindness
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Author : Benjamin Joy Jeffries
language : en
Publisher:
Release Date : 1880
Report Of The Examination Of 27 927 School Children For Color Blindness written by Benjamin Joy Jeffries and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1880 with Children categories.
Popular Science
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Author :
language : en
Publisher:
Release Date : 1882-09
Popular Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1882-09 with categories.
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Color Names Color Blindness And The Education Of The Color Sense In Our Schools
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Author : Benjamin Joy Jeffries
language : en
Publisher:
Release Date : 1882
Color Names Color Blindness And The Education Of The Color Sense In Our Schools written by Benjamin Joy Jeffries and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1882 with Color blindness categories.
Our Eyes And Our Industries
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Author : Anonymous
language : en
Publisher: BoD – Books on Demand
Release Date : 2024-02-29
Our Eyes And Our Industries written by Anonymous and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-29 with Fiction categories.
Reprint of the original, first published in 1883.
Our Eyes And Our Industries
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Author : Benjamin Joy Jeffries
language : en
Publisher:
Release Date : 1883
Our Eyes And Our Industries written by Benjamin Joy Jeffries and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1883 with Color vision categories.
Public Documents Of Massachusetts
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Author : Massachusetts
language : en
Publisher:
Release Date : 1883
Public Documents Of Massachusetts written by Massachusetts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1883 with categories.
Report And Papers On Public Health
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Author : Massachusetts. State Board of Health, Lunacy and Charity
language : en
Publisher:
Release Date : 1883
Report And Papers On Public Health written by Massachusetts. State Board of Health, Lunacy and Charity and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1883 with Food adulteration and inspection categories.
7th includes "General index to the health supplements...[and] an index of...material relative to public health contained in the seven annual reports of the board."
Annual Report Of The State Board Of Health Lunacy And Charity Of Massachusetts
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Author : Massachusetts. State Board of Health, Lunacy, and Charity
language : en
Publisher:
Release Date : 1883
Annual Report Of The State Board Of Health Lunacy And Charity Of Massachusetts written by Massachusetts. State Board of Health, Lunacy, and Charity and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1883 with Food adulteration and inspection categories.
Vol. 7 includes: General index to the health supplements and index of materials relative to health in the 1st-7th Annual reports.