COWUR OF THE WAVES. C7 



light, it cannot appear white, and the greenish tint 

 which it presents mingles with that of the water. 

 In a word, it is necessary in all cases to remember 

 that the bottom of the sea receives a green light, and 

 not the white light which falls upon the surface. 



When the surface of the sea loses its uniformity 

 the foregoing remarks cease to be applicable. Un- 



Kig. 15. — InciJenoe of the Unjs of Light on the Waves of the Sea. 



dulations or waves cause light which has traversed 

 the water to reach the eye of the observer at the same 

 time as the liglit reflected from it. The former is 

 that which falls on the anterior part of a wave, and, 

 being reflected, traverses the superior part of the wave 

 following before reaching the eye. This transmitted 

 light is green. If it dominates the reflected light, 



