Smithsonian Report, 1895. 



Plate LXIX. 



Fig. 1. Chart showing how the sun, operating on the geosphere, the hydrosphere, and the 

 atmosphere, makes of them a single environment for the whole human species. The 

 air invades the earth and the waters; the waters invade the earth and the air; the earth 

 invades the waters and the air. Their mutual activities depend upon the sun. 



Fig. 3. Showing how the three kingdoms of nature are in their totalities under the rule of 

 the sun and how their interdependencies are created by that luminary, the whole con- 

 stituting a single environment of man. 



