A preliminary discourse on the study of natural philosophy [electronic resource] / John F.W. Herschel ; with a new foreword by Arthur Fine.

pt. 1. Of the general nature and advantages of the study of the physical sciences
pt. 2. Of the principles on which physical science relies for its successful prosecution, and the rules by which a systematic examination of nature should be conducted, with illustrations of their influence as exemplified in the history of its progress
pt. 3. Of the subdivision of physics into distinct branches, and their mutual relations.