IDENTICAL CHANGES 



every gas or vapor, is not a plain constant increase 

 for every successive degree, but an increase after 

 the square. 



Then the transmission of heat, in this experi- 

 ment, is effected through a displacement of P. S. 

 of void matter in plane layers. 



That this is the case becomes evident when it is 

 considered that the particles of the coolest gas are 

 apart from one another, and every degree of heat 

 drives them farther apart. 



The gas particles, therefore, resemble heavenly 

 bodies in space, and like them they must be sur- 

 rounded by void matter. Again, the amount of 

 heat required to raise hydrogen through one degree 

 under a given pressure is not the same as is re- 

 quired to raise the same volume of Chlorine under 

 equal pressure through one degree. 



And because the lighter gas requires the square 

 pf the proportion between them (that is, more than 

 the heavier gas), it would seem as if heat were an 

 exemption to the rule governing other forces in 

 being able to do more with the same amount of 

 action on a larger amount of material than on a 

 less quantity. 



But because weight is the result of the force 

 gravity working upon the Mass of a substance, and 

 the Mass of any substance is the number of Pri- 

 mary Spheres held together in the constitution of 

 that substance; therefore, the heavier gas holds 

 more P. S. in organization than the same volume 

 of a lighter gas. 



155 



