CHAPTER XXV 



EVOLUTION OF MAN HUXLEY'S VIEW HAECKEL/S 

 VIEW LANGUAGE, WRITING, PRINTING EVO- 

 LUTION AND EMBRYOLOGY THE MANIFESTATION 

 OF HIM IN WHOM WE LIVE AND MOVE AND 

 HAVE OUR BEING. 



THE course of evolution has been very slow. 

 Hundreds of thousands of centuries have come and 

 gone since our globe separated from the vaporous 

 mass that then constituted the sun and the inner 

 planets thousands of centuries since the earth be- 

 came cool enough to permit the first life in any form 

 thereon. Then, as the earth grew older, plant and 

 animal life rose higher and higher in their order of 

 being, unchecked even by the glacial ages that for 

 long periods drove all life far south of its former 

 home. 



Prior to this glacial era a change took place in 

 the line of evolution. The bodily forms and func- 

 tions, or what should be called the anatomy and 

 physiology of life, had reached nearly the limit of 

 present development, the construction of the or- 



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