IDENTICAL CHANGES 



cording to generally accepted theories, they are pro- 

 duced by heat. 



Yet Phosphorescence and the light of many ani- 

 mals as well as the North Light are not accom- 

 panied or caused by heat that is ordinarily percep- 

 tible. And many laws that are applicable to light 

 are not common to heat or any other force, there- 

 fore, light is a distinct identical manifestation of 

 the One Universal Force. 



Because light does not add weight to a sub- 

 stance that receives light, therefore, it is not a 

 movement of organized material. But light is a 

 manifestation of force, and always there are two 

 bodies concerned in the manifestation at the same 

 time. And because the intensity of light is di- 

 minished after the square by the increase of dis- 

 tance between the bodies giving and receiving light, 

 therefore, light is a displacement of void matter 

 in plane layers. (Prop. XII, B. 3.) 



Then whatever the origin of light may be, in the 

 first place, and whatever the effect of light may be 

 on the bodies receiving it, between the two bodies 

 it is a mere displacement of Primary Spheres. And 

 the Primary Spheres of void matter do not absorb 

 light or reflect it; neither is there any refraction 

 or polarization or any other change possible in 

 void matter, except a change of position of indi- 

 vidual spheres. Therefore, light can be light only 

 where there is organized matter capable of under- 

 going change through the agency of light. And 

 organized matter can undergo change only because 

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