CONTENTS. xiil 



CHAPTEE VI. Of Propositions merely Verb a I. 



PAGE 



1. Essential and Accidental propositions . . . 119 



2. All essential propositions are identical propositions . 120 



3. Individuals have no essences .... 124 



4. Seal propositions, how distinguished from verbal . 126 



5. Two modes of representing the import of a Heal proposition 127 



CHAPTER VII. Of the Nature of Classification, and the 

 Five Predicdbles. 



1. Classification, how connected with Naming . . 129 



2. The Predicables, what . . . . .131 



3. Genus and Species ...... 131 



4. Kinds have a real existence in nature . . . 134 



5. Differentia ....... 139 



6. Differentiae for general purposes, and differentiae for special 



or technical purposes ..... 141 



7. Proprium . . . . . . 144 



8. Accidens ....... 145 



CHAPTEB VIII. Of Definition. 



1. A definition, what ...... 148 



2. Every name can be defined, whose meaning is susceptible 



of analysis ...... 150 



3. Complete, how distinguished from incomplete definitions . 152 

 3. and from descriptions . . . . . 154 



5. What are called definitions of Things, are definitions of 



Names with an implied assumption of the existence of 



Things corresponding to them .... 157 



6. even when such things do not in reality exist . . 165 



7. Definitions, though of names only, must be grounded on 



knowledge of the corresponding Things 



