Evening Republican, Volume 15, Number 123, Rensselaer, Jasper County, 24 May 1911 — Three Color Seeing. [ARTICLE]

Three Color Seeing.

In a discussion before the dety in London of the phenomenofrof “trichromic vision” the case of a scientist known for his researches in electrical science was described. When looking at the bright spectrum of sunlight this scientist sees only three colors—red. green and violet For him there Is no definite color tn the part of' the spectrum that appears to persons; with normal vision pure blue. He can; distinguish nothing of the nature of pure yellow in the spectrum. Reddish green would describe the orange and yellow pacts and greenish violet the blue parts as he sees them. In testing with colored yarns the wool changed color to him when contrasted, although a normal sighted person saw no difference. These facts show how different our favorite colors may possibly appear to some of our friends.—New York TribIM.