Though we come forward, therefore, among those whose duty and whose glory it is to uphold Revelation, we are by no means jealous of the wonderful ardor, and we may add, the wonderful success, with which the study of Geology has been lately pursued. We have too much confidence in the truth of our cause to apprehend that it can suffer in any way from the progress of Natural Science. It is our conviction, rather, that the more thoroughly the works of Nature are understood, the more perfectly they will be found to harmonize with the truths of Revelation. We are not afraid, therefore, to venture into the realms of Geology and to come face to face with its discoveries. Too long, perhaps, has this interesting and popular science been neglected by those who are ranged under the banner of Religion. Let it be ours to show that the study of God’s works is not incompatible with the belief in God’s Word; and that it is quite possible to investigate the ancient history of the world we inhabit without forfeiting our right to a better. The points of contact between Geology and Revelation are chiefly these two:--First, the Antiquity of the Earth; Secondly, the Antiquity of the Human Race. In the present Volume we shall confine our attention to the Antiquity of the Earth. The subject that offers itself for discussion may be stated in a few words. Geologists maintain that the Crust of the Earth has been slowly built up by means of a long series of operations which would require hundreds of thousands, perhaps millions of years for their accomplishment: whereas the Bible narrative, it is alleged, allows but the short lapse of six or eight thousand years from the creation of the world to the present time. The Geological record, then, seems to contradict the Mosaic; and the question is, how this apparent contradiction is to be explained. Some have ventured to solve the problem by rejecting the historical narrative of the Bible: others by ignoring the plain facts of Geology. But there is a third class of writers, including many names of the highest eminence and authority, who contend that we may admit the extreme Antiquity of our Globe, which Geology so imperatively demands, without compromising in the smallest degree the truthfulness of the Mosaic story. They say that the Chronology of the Bible stops short with Adam, and does not go back to the beginning of the world. By means of the data which the Bible supplies we may calculate, at least roughly, the lapse of time from the Creation of Adam to the Birth of Christ. But from the first beginning of all created things, when God made the Heavens and the Earth, to the close of the Sixth Day when Adam was introduced upon the scene, that is an interval which, in the Bible narrative, is left altogether undefined and uncertain. This is the view which we hope to develop and to illustrate in the course of the following pages.