io THE SCIENCE OF LIFE. 



the various kinds of animals. All these sciences, and 

 many others, combine in Biology. 



To the Christian student Biology affords a multitude 

 of evidences of intelligent design, proving the universe 

 to be the product of Supreme Will. It also contains 

 proof of the reality of spiritual existences, in addition 

 to physical atoms and physical forces. 



2. The cause of difference between the living and the 

 non-living is the most fundamental question of Biology, 

 and the answers given to this question by modern 

 writers depend upon the schools of philosophy to which 

 they are attached. 



Much learning and industry have been employed within 

 the past few years to teach the system of Monism, or the 

 theory that all being can be resolved into a single prin- 

 ciple. Among those who entertain this view, some hold 

 to materialism, or the development of all forms from 

 primitive atoms. Others are idealists, conceiving matter 

 to be identical with force. Others again are pantheists, 

 holding that mind is the only substance, and that the 

 universe is an emanation of the universal mind. 



The doctrine of rational Dualism, which asserts two 

 real principles of existence, mind and matter, with their 

 special endowments and forces, stands in opposition to 

 all forms of Monism whatever. 



Since the dawn of history these speculations have di- 

 vided philosophers, and learning of all kinds has been 

 used to maintain the views of either side. Leucippus 

 and Democritus, the masters of Epicurus, taught the 

 doctrine of invisible and indestructible atoms, with spon- 

 taneous motion, as the cause of all things. Anaxagoras 



