CAUSES OF CLIMATAL CHANGE.
Reading edition
DEDICATED TO DR. T. STERRY HUNT, F.R.S., Whose Work in the Chemical and Cosmical Relations of Geology is beyond all Praise, and is destined to command in the Future even greater Acceptance than in the Past.
Various Theories as to Changes of Climate—The Astronomical Theory of Croll—The Geographical Theory of Lyell—Objections of a Geological Character to the Former—Testimony of Geology and Physical Geography in Favour of the Latter
North America in Periods of Warm and Cold Submergence. (A) Early Cretaceous. (B) Glacial or Pleistocene. Shaded portion land. Unshaded portion.—Snow-clad mountains.—Crosses.—Ice-laden sea. These maps illustrate the probable geographical conditions of warm and cold periods. (p. 388.)