Geology Differs As Widely From Cosmogony, As

Probably There Was A Beginning-it Is A Metaphysical Question, Worthy A Theologian-species Have Begun And Ended-but The Analogy Is Faint And Distant.

No Tools Have Yet Been Met With In Any Of The Gravels Occurring At The Higher Levels Of The Valley Of The Seine; But No Importance Can Be Attached To This Negative Fact, As So Little Search Has Yet Been Made For Them.

Each Species May Have Had Its Origin In A Single Pair, Or Individual, Where An Individual Was Sufficient, And Species May Have Been Created In Succession At Such Times And In Such Places As To Enable Them To Multiply And Endure For An Appointed Period, And Occupy An Appointed Space On The Globe.

Amidst The Vicissitudes Of The Earth's Surface, Species Cannot Be Immortal, But Must Perish, One After Another, Like The Individuals Which Compose Them. There Is No Possibility Of Escaping From This Conclusion.

The Present Is The Key To The Past