Ice Age in North America and Its Bearing upon the Antiquity of Man. 5th Ed. with Many New Maps and Illus. , Enl. and Rewritten to Incorporate the Facts That Bring It up to Date, with Chapters on Lake Agassiz and the Probable Cause of Glaciation
Ice Age in North America and Its Bearing upon the Antiquity of Man. 5th Ed. with Many New Maps and Illus. , Enl. and Rewritten to Incorporate the Facts That Bring It up to Date, with Chapters on Lake Agassiz and the Probable Cause of Glaciation