CONTENTS. 



CHAPTER I. 



PAGE. 



NATURE AND DESIGN OF THIS WORK, 1 



CHAPTER II. 



SIGNS AND THEIR LAWS, 24 



CHAPTER HI. 

 DERIVATION OF THE LAWS, 39 



CHAPTER IV. 

 DIVISION OF PROPOSITIONS, 52 



CHAPTER V. 

 PRINCIPLES OF SYMBOLICAL REASONING, .......... 66 



CHAPTER VI. 

 OF INTERPRETATION, 80 



; 



CHAPTER VH. 



OF ELIMINATION, 99 



CHAPTER vrn. 



OF REDUCTION, 114 



CHAPTER IX. 



METHODS OF ABBREVIATION, 130 



