CONSTITUENTS OF THE UNIVERSE. 



comprise the entire sum of motion; for there 

 are other modes, and a mere part like the elec- 

 trical movement is by no means the sum. 



This motion well illustrates the manner in 

 which changes occur that are so radically dif- 

 ferent from each other. It can be changed in- 

 to heat and light; also into mechanical 

 motion; or, a portion into one of these move- 

 ments and the balance of the current, at the 

 same time, into the other. 



Although this motion is so serviceable, there 

 is at present no better method of producing it 

 than by MECHANICAL motion. Were it not for 

 this mode of motion, a time would probably 

 arrive when this world would be unable to 

 advance further in civilization; or even to hold 

 its own in that respect . 



COMPLEX SECONDARY MOVEMENTS ON THE 

 EARTH'S SURFACE. 



While the primary motions are few and sim- 

 ple, the SECONDARY are numerous and com- 

 plex; and one of the chief reasons for the ex- 

 istence and prevalence of the various errors in 



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