Note 4 — BOOK XVIII.
Reading edition
The Wernerians, in distinguishing their study from Geology, and designating it as Geognosy, the knowledge of the earth, appear to have intended to select Descriptive Geology for their peculiar field. In like manner, the original aim of the Geological Society of London, which was formed (1807) “with a view to record and multiply observations,” recognized the possibility of a Descriptive Geology separate from the other portions of the science.