Interest in the Antiquity of man—Connected with the Glacial
Age—The subject difficult—Proofs of a Glacial Age—State of
Greenland to-day—The Terminal Moraine—Appearance of the North
Atlantic—Interglacial Age—Causes of the Glacial Age—Croll’s
Theory—Geographical causes—The two theories not antagonistic—The
date of the Glacial Age—Probable length of the Paleolithic
Age—Time Since the close of the Glacial Age—Summary of results.