NEXT STEP IN EVOLUTION 



was covered with all the many 

 varieties of plant life, varieties 

 resulting from the law of selec- 

 tion through difference in climate, 

 through food distribution, and 

 through other causes, and from 

 the law of heredity. 



SECOND STEP IN LIFE, 

 The Animal Kingdom. — No plant, 

 no animal. The plant was neces- 

 sary to prepare the inorganic world 

 for the animal ; the plant is the 

 essential go-between. The animal 

 can not digest and assimilate the 

 mineral, but the plant can, and 

 then the animal can digest and 

 assimilate the plant. But ages 

 elapsed in the preparation of the 

 animal protoplasm, that is, in fit- 

 ting material for the physical basis 

 of the animal life. Then again, 

 when all was ready, whence came 

 the animal life? Scientists now 

 substantially agree that there is 

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