progeny. But, however great may be the influence of en- 

 vironment, Eimer seems to overestimate it. Indeed, the 

 analogy of "growth" should have led Eimer tO' a concep- 

 tion of the true relation between "internal" and "external" 

 causes. Warmth, air, Ught, moisture and nourishment, are 

 undoubtedly necessary factors in the process of growth, 

 but they are only the conditions which render it possible, 

 and not the causes which produce it. The latter are to 

 be found in the individual organism itself. The condi- 

 tions may be ever so favorable and well-adapted for 

 growth, still the organism will not develop unless it bear 

 within itself the power to do so. On the other hand, al- 

 though it is hampered and may become abnormal, it will 

 readily grow even in an unfavorable environment, as long 

 as it retains its inherent vital force. The same is very likely 

 true of the genealogical growth. Evolution took place in 

 virtue of the power inherent in the developing organisms. 

 But only when the environment was favorable and normal, 

 did the evolution proceed favorably and normally, that is, 

 toward the perfection of the animate kingdom. 



It appears as if the internal principle of development 

 were losing influence and significance with Eimer; but the 

 ulterior reason for this is not far to seek. Whoever recog- 

 nizes the validity of the internal principle of development, 

 eliminates chance, that stop-gap of materialism, from evo- 

 lution, and is lead at once to a supreme Intelligence which 

 directs evolution. As soon as it comes in sight, however, 

 certain persons take fright and turn aside or even turn back 

 in order to avoid it. This was the case with Eimer, al- 



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