Bound volume includes: 1. Genesis and geology -- 2. Ueber neue Funde in den Phosphatlagern von Helmstedt, Büddenstedt und Schleweke -- 3. The ancient Merrimack and its glaciers in Aphelion winter -- 4. The surface geology of the basin of the Great Lakes and the valley of the Mississippi -- 5. Observations on some new organic remains in the flint of chalk -- 6. An account of the discovery of a mastodon's remains in Northborough, Worcester County, Massachusetts -- 7. On the lowest fossiliferous beds of North Wales -- 8. On the phosphate beds of South Carolina -- 9. Upon the resources of the great Appalachian basin -- 10. Lake Agassiz: a chapter in glacial geology -- 11. Physical characters of the portion of the continental border beneath the Gulf Stream explored by the Fish-Hawk -- 12. The warm and the cold ages of the earth in the northern latitudes.