Difficulties of the subject-Lesson to be learned-The pursuit of knowledge-Recent Advances-Prehistoric past of the Old World-Of the New-Of Mexico and the South-The Isles of the Pacific-Similar nature of the relics-The wonders of the present age-History of popular Opinion on this subject-The teachings of the Bible-Nature of the evidence of man's antiquity-Geology-Astronomy-Unfolding of life-Nature of our inquiry.