CONTENTS. Vll 



CHAPTER IV. Of the Requisites of a Philosophical Lan- 

 guage; and the Principles of Definition. 



PAGE 



1. First requisite of philosophical language, a steady and 



determinate meaning for every general name . . 236 



2. Names in common use have often a loose connotation . 230 



3. which the logician should fix, with as little alteration 



as possible ..... 240 



4. Why definition is often a question not of words but of 



things . . . . . .242 



5. How the logician should deal with the transitive applica- 



tions of words ..... 247 



6. Evil consequences of casting off any portion of the custo- 



mary connotation of words . . . 253 



CHAPTER V, Of the Natural History of the Variations in 

 the Meaning of Terms. 



1. How circumstances originally accidental become incorpo- 

 rated into the meaning of words . . . 262 



2. and sometimes become the whole meaning . . 265 



3. Tendency of words to become generalized . . 267 



4. -- and to become specialized . . . 270 



CHAPTER VI. The Principles of a Philosophical Language 

 further considered. 



1. Second requisite of philosophical language, a name for 



every important meaning .... 277 



2. viz., first, an accurate descriptive terminology . . 277 



3. secondly, a name for each of the more important results 



of scientific abstraction .... 282 



4. thirdly, a nomenclature, or system of the names of 



kinds . . . . . .285 



5. Peculiar nature of the connotation of names which belong 



to a nomenclature .... 288 



6. In what cases language may, and may not, be used 



mechanically ..... 291 



