Ifa fRature'0 /HMracles. 



study to the phenomena of water as exhibited x 

 when it is at the freezing point. Water is 

 such a large factor in the make-up of our 

 globe and the air that surrounds it that it be- 

 comes a very interesting and important study 

 to anyone who wishes to understand the phe- 

 nomena of nature that are closely related to 

 it. 



As all know, pure water is a compound of 

 two gases, oxygen and hydrogen, combined in 

 the proportion of two atoms of hydrogen and 

 one of oxygen. 



Let us now study this fluid in its relation to 

 heat. The reader is referred to the chapters 

 on heat in Vol. II., where it is stated that heat 

 is a mode of motion. It is also stated that 

 heat is a form of energy, and that energy is 

 indestructible, that an unvarying amount of 

 it exists in some form or another throughout 

 the universe. It is not always manifested as 

 heat or electricity, although both of these are 

 always in evidence as active agents of force. 

 Much of the energy is simply stored all the 

 time possessing the ability to do work or to be 

 converted into any of its known forms, such as 

 heat, light, electricity, or mechanical motion. 

 A weight that is wound up has required a cer- 

 tain amount of energy to elevate it to the 

 position that it occupies. While in its ele- 

 vated position it possesses energy, although 

 not active. Energy in this form is called po- 



