THE ORIGIN OF MAN 9 



which waves are propagated from luminous 

 bodies. We can then say that from luminous 

 bodies, such as the sun, waves are propagated 

 and which, when they reach our eye, produce the 

 sensation we know as light. I have thus pointed 

 out the scientific theories as to the origin of our 

 universe. We shall now turn our attention to the 

 origin of life on our planet, but before we proceed 

 let us see what life is. To know what life is, it 

 will be therefore necessary to take vp the subject 

 of matter and organisms. 



Matter is that which is perceptible to the 

 senses. The earth is composed of matter which 

 science recognizes as inorganic and organic. The 

 former is lifeless matter much of which is in the 

 crystal form and hence it is sometimes referred 

 to as the Crystal Kingdom. Organic matter 

 when alive manifests vitality, either in the form 

 of single cells or in aggregates of cells, and is 

 thus classified on the basis of its cell structure 

 and mode of nourishment into the Plant King- 



