Color-blindness in its relation to accidents by rail and sea

Holmgren, Frithiof, 1831-1897, author · 1878 · Washington : Government Printing Office · 3 pictures

Color Vision Defects · Accidents, Occupational -- prevention & control · Railroads · Ships

Internet Archive · U.S. National Library of Medicine · Public domain (published before 1931) · More from this library