132 THE LESSON OF EVOLUTION 



being always in the same place, must also have 

 been due to mind. 



Next take the movements of the protoplasm in 

 Amoeba. Portions of the ectosarc are pushed out, 

 apparently at the will of the animal, and then the 

 granular endosarc flows into them and thus are 

 formed the pseudopodia, by means of which the 

 animal surrounds its food, or progresses slowly 

 onwards, feeling its way through the obstacles it 

 encounters. No one who has watched this process 

 will say that the movements are mechanical. Ex- 

 ternal agencies could not have caused directly the 

 pushing out of pseudopodia. Evidently they are 

 produced by mental action ; and so we find that the 

 first step in circulation was produced by mind. 



Also the separation of the male and female sexual 

 elements, sometimes into two approximated cells, 

 cannot possibly be due to physiogenesis. The same 

 may be said of the secretion of substances like 

 cellulose, silica, and carbonate of lime ; some by one 

 cell some by another. And neither could the forma- 

 tion of special gland-cells be due to physiogenesis. 



Let us take the formation of the eye and examine 

 it a little more closely. Physiogenesis cannot 

 possibly account for the differentiation of a nerve- 

 cell from a muscle-cell, nor for the further separa- 

 tion of the special senses. How could the vibrations 

 of light be concentrated so as to produce eyes in 

 certain places only? If it is said that the skin be- 

 came more sensitive to light in some places than in 

 others, that is acknowledging internal action. Why 

 should the vibrations of light and of sound have 



