METHOD OF PRESENTATION 5 



If the principles to follow are pondered at length, and reillustrated by the 

 reader in other examples of his choice, the clarity of thought, and the true 

 power and scope of the basic principle will become evident. 



Conversely, it seems axiomatic, but it is often forgotten, that the serious 

 reader should seek and expect to find in a book such as this a continuous 

 thread of purpose in all the material contained between its covers. 



