MECHANISM OF NATURE 



And the expansion is always against the action 

 of gravity, and to some extent against the resist- 

 ance offered by the interlocking of solid substances. 

 Yet the most solid substance can interlock only as 

 far as some result of the process of life holds so 

 many Primary Spheres together in such a peculiar 

 form. 



But why does it take a greater amount of heat 

 to produce, in the Cylinder of Fig. A, a given 

 pressure through a volume of Hydrogen than 

 through an equal volume of Chlorine ? 



It is not that the atoms of either of the gases 

 are expanded or altered, and both are held in the 

 same Cylinder, which is equally hot in both cases. 

 And the atoms of each gas are apart from one 

 another and surrounded by exactly similar Primary 

 Spheres of void matter. 



Evidently the greater mass of the chlorine offers 

 a greater resistance, and it can do this only when 

 there is in both gases a continual change. The 

 lighter gas atoms must needs be smaller than the 

 atoms of the heavier gas. 



Therefore, the atoms of Hydrogen are farther 

 removed from one another, and their influence, 

 which alone can make the pressure observed, is 

 exerted at a greater distance; and evidently in 

 plane layers the Spheres of void matter participate 

 in the diffusion of that pressure. 



If heat were a vibration only, then we would 

 have in the increase after the square, of the pres- 

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