A System of Logic: Ratiocinative and Inductive, 7th Edition, Vol. II
CHAPTER VII. _Of Classification, as subsidiary to
Induction._
ยง 1. Classification as here treated of, wherein different from the classification implied in naming 266
2. Theory of natural groups 267
3. Are natural groups given by type, or by definition? 271
4. Kinds are natural groups 274
5. How the names of Kinds should be constructed 280