A Story Outline of Evolution 



and America offered their lives, if need be, in studying the 

 hidden secrets of air travel. As a practical, certain and 

 safe means of air travel, the passive balloon was not a suc- 

 cess; however, the motor driven dirigibles are, as yet, in 

 their infancy, and we know not what the future will bring 

 forth in the further development of this method of aerial 

 navigation. Only twenty-five years ago many of the best 

 informed in aerial navigation suggested that the possibilities 

 of the balloon had been exhausted, but we know now that 

 these possibilities are in the early stages of development. 



A new thought was budded to the original ideas in the 

 form of the internal combustion engine as a motive power 

 and this has developed the greatest epoch of advancement 

 in rapid transit that civilization has known. Because it came 

 into being at so late a date, its evolution may be traced with 

 a greater degree of certainty than that of any other mechani- 

 cal force now in use. The internal combustion engine has 

 revolutionized all methods of travel on and under the 

 water, on land and in the air, and has done more to aid and 

 advance individual and family travel than all other methods 

 combined have done. It was not evolved out of some man's 

 inner consciousness fully developed and ready for use as we 

 now have it, but on the other hand, it has developed from 

 crude applications, modifications and changes until it has 

 reached its present form of near perfection. It is an end 

 to which thousands of the greatest engineers have dedicated 

 and consecrated their lives for the benefit of the succeeding 

 generations or until such time as some other and more con- 

 venient force shall supplant its use. 



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