BOOK IV.. Of Operations Subsidiary to Induction.

OF OPERATIONS SUBSIDIARY TO INDUCTION.

CHAPTER I. Of Observation and Description.

§ 1. Observation, how far a subject of logic 183

2. A great part of what seems observation is really inference 184

3. The description of an observation affirms more than is contained in the observation 187

4. --namely an agreement among phenomena; and the comparison of phenomena to ascertain such agreements is a preliminary to induction 190