﻿LEAVES IN SPRING, SUMMER AND AUTUMN.* 



The yearly miracle of the appearance of in- 

 numerable shades and hues of green in awak- 

 ening vegetation , exerts a mysterious influence 

 amounting to fascination over the human 

 race. A fascination made strong by the in- 

 herited experience of untold generations of 

 forest-dwelling ancestors, reaching backward 

 the entire present geologic period, and which 

 grows in intensity as we creep from the crea- 

 tion to millenium. 



Our vague and emotional inherited interest 

 in the annual revivification of the vegetable 

 world becomes vividly intense and direct, 

 however, when it is learned that the universal 

 blush of green is due to the most important 

 coloring substance in the world — chlorophyll. 



^'Adapted from "Green Color of Plants," Harper's Magazine, 

 April, 1897, and "Autumn Leaves," same joxirnal, October, 

 1897. 



