Inside Out Library · Explore

Researches in colour-blindness : with a supplement on the danger attending the present system of railway and marine coloured signals (1855)

Wilson, George, 1818-1859 · Edinburgh : Sutherland & Knox · leaf 168

An illustration from Researches in colour-blindness : with a supplement on the danger attending the present system of railway and marine coloured signals, 1855, leaf 168
rboard side, and ared on the port side of the advancing vessel. Fig. 1. But when vessels are crossing each other’s bows, the fore- mast white light goes for nothing, and the colour of the steamer’s one side-light seen is, to the vessel seeing it, the index whether the steamer is crossing to… … to cross the path of another at right angles ; both are repre-

Color Perception · Color Vision Defects · Accident Prevention · Accidents, Traffic

Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.

More pictures from Researches in colour-blindness : with a supplement on the danger attending the present system of railway and marine coloured signals

More like this