Color blindness all variations in human color vision involve the red and green receptors in male eyes. It is very rare for males or females to be "blind" to the blue end of the spectrum. The first scientific paper on the subject of color blindness, "Extraordinary facts relating to the vision of colours", was published by the English chemist John Dalton in 1798 after the realization of his own color blindness. Because of Dalton's work, the general condition has been called "daltonism", although in English this term is now used only for deuteranopia. Color codes present particular problems for those with color
Dictionary of Scientific Biography become the standard against which to measure all multi-volume biographical works in history of science." Dictionary of Scientific Biography The Dictionary of Scientific Biography is a scholarly reference work that was published from 1970 through 1980. It is supplemented by the New Dictionary of Scientific Biography. Both these publications are comprised in an electronic version, called the Complete Dictionary of Scientific Biography. The "Dictionary of Scientific Biography" is a scholarly English-language reference work consisting of biographies of scientists from antiquity to modern times, but excluding scientists who were alive when the "Dictionary" was first published. It includes scientists who worked