32 CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



food and building material, so a large number of cells 

 have become parasites and live upon the work and energy 

 of other cells. From this fact that some cells are able to 

 use the heat from the sun's rays, to build and forge the 

 material they require, and others not, it is clear that life 

 is not caused by the heat of the sun but that the heat is 

 used in the same manner and for a purpose, as it is used 

 by intelligent man. 



Coming back again to the question as to whether the 

 light has a power to attract plants and animals, I believe 

 it has, and that plants and animals act in the same manner 

 as we do and for a purpose. They go towards the light 

 for several reasons but mainly to get out of the place in 

 which they are confined. Plant cells build their structures 

 towards and into the light because they must use the rays 

 of light or the waves of ether to effect the chemical action 

 necessary to manufacture their food and the building ma- 

 terial with which they build those structures we call 

 plants. In Mr. Loeb's book "On the Mechanistic Concep- 

 tion of Life" he makes this statement : "At the present 

 day nobody seriously questions the statement that the 

 action of light upon organisms is primarily one of a chem- 

 ical character." 



It appears perfectly clear to me that the organisms or 

 cells are themselves not in the least affected by the action 

 of light any more than man except in this way, that if they 

 are deprived of the sun's heat and light, they are deprived 

 of a force with which they are able to manufacture those 

 things that they must have to eat, and also those mate- 

 rials with which they build their structures. Sunlight 

 seems to contain a peculiar combination of energy con- 

 taining both heat and electricity, which effect chemical 

 changes in the raw material they gather from earth, air 

 and water and produce those particular things they must 



