A well-known author gives an amusing incident of a dinner party, at
which the host offered stewed tomato for apple sauce. What color
nerves were defective in the case of the host?
In some employments color blindness in an employee would be fatal to
many lives. Engineers and pilots govern the direction and speed of
trains and boats largely by the colored signals which flash out in the
night's darkness or move in the day's bright light, and any mistake in
the reading of color signals would imperil the lives of travelers. For
this reason a rigid test in color is given to all persons seeking such
employment, and the ability to match ribbons and yarns of all ordinary
hues is an unvarying requirement for efficiency.
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