THE POWER OF SUNLIGHT 113 



with the land, that it is always thus. Some odd creatures 

 are known to exist there — animals — ^which seem to 

 have the power to prepare food for themselves, just 

 like plants, out of the " raw materials." And they 

 actually have in their bodies some of those curious 

 little green particles, which on land are found in plants 

 alone. 



Other such instances may in time become known to 

 us also. But on the whole, in the sea as well as on land, 

 men and animals owe a heavy debt to plant-life. 



