heat drives the needle of the galvano- 

 meter in one direction, cold drives it in 

 the opposite. Cold equally affects the 

 senses. Cold is subject to the same 

 laws of reflection. Surely the absence of 

 something cannot be reflected from a 

 polished surface. Applied to water con- 

 fined within strong vessels, cold causes 

 the walls of the vessels' to burst asunder 

 by the expansive force of crystalization. 

 The marvelous power thus exercised 

 may not be attributed simply to the ab- 

 sence of heat, a mere negative condi- 

 tion. The particles of water which 

 compose the icy crystals are arranged in 

 due order, and perform their functions 

 through the operation of a power not 

 less real than that of either of the great 

 forces. 



Cold is generated by the solution of 

 certain bodies, as heat is, by the solu- 

 tion of others. 



The power capable of disrupting and 

 disintegrating the earth's solid crust, 

 and of bridging a mighty river in a 

 single night, the power which topples 

 down massive walls of masonry, can 

 hardly be regarded as a slight thing, 

 or a figment of the imagination. 



Heat and cold, so opposite in their 

 effects, are, we believe, correlated as 

 truly as are the negative and positive 

 conditions in electricity. One may not 

 presume to say that either is mightier, 

 or more real, than the other. 



The physical changes that give rise 

 to this phenomenon are not appreciated ; 

 hence cold is assigned a false character. 

 But heat is necessarily involved with it 

 in misunderstanding. The rectification 

 of the latter waits upon the recognition 

 of the nature of cold. 



