BROKEN AND SITADED LIGHT 
41 
and bushes. Dr. Weir Mitchell has noted 
yachts at sea sailing in the track of a fiery red 
sun with the shadowed white sails showing “‘a 
vivid green;”* and I have seen more than 
once the white sails of yachts crossing a yellow 
sunset when the change to blue in the sails was 
strongly marked—blue being the complement- 
ary color of yellow as green is of red. Un- 
doubtedly the yellow sky at sunset is measur- 
ably responsible for the blues and purples of 
the mountains below it, and the more intense 
the yellow the stronger the blue-purple. If the 
sunset shows greenish-yellow, the mountain 
shadows will be violet ; if orange, the shadows 
will be cyan-blue ; and so on throughout the 
gamut each color will disclose its opposite in 
shadow. 
This is scientific theory, and it has been de- 
monstrated and proved true of nature when 
all the conditions are just right. The only 
trouble is the conditions in nature are seldom 
just right. The complementary coloring in 
the shadow is apparent only on certain days, 
and under certain lights, atmospheres, and 
temperatures. It is an error to suppose that a 
color is always casting its complementary hue 
* Doctor and Patient, page 176. 
Comple- 
mentary 
hues in 
shadow. 
