CHAPTER X. 



HEAT. 



Heat the result of chemical action between certain classes of atoms.-* 

 Dynamical theory of heat. Motion. Tyndall on hoat. Christo- 

 pher Columbus and his followers. No ambition among scientific 

 men. Heat produced in three Ways. Natural heat. Combustion. 

 Friction. Ice melting .Hot springs and Geysers of California. 

 Volcanoes caused by chemical action. Why coal burns. Pokef 

 experiment. Conductive power of heat. Tyndall's experiments. < 

 Laboratory experiments incorrect. -Atomic action likened to a gos- 

 samer thread. How the Crusade against the present system of 

 science will be conducted. 'Buskin's crusade against Renaissance 

 Painting, and Architectnre. Grove and Lardncr. 



FROM what we have stated in the previous chapter, it must 

 be evident, that heat is the result of chemical action between 

 certain atoms of the two classes. 



Because motion in most cases will produce heat, the 

 originators and followers of the Dynamical Theory of heat, 

 assert that motion is the primal cause of heat among all 

 atoms. 



Professor Tyndall in his lecture on " Heat as a mode of 

 motion," says : " Heat is not the clash of winds, nor the 

 quiver of a flame, nor the ebullition of water; all these are 

 mechanical motions into which the motion of heat may be con- 

 verted ; but heat itself is a molecular motion, as oscillation ot 



