
The History of the Great American Lakes

The History of the Great American Lakes

The Colorado Oil Fields

Uneducated Reason in the Cicada

The Eroding Power of Ice

The Deposition of Ores

The Evidences of Ancient Glaciation in North America, and their Bearing on the Theory of an Ice Period

On the Physical Conditions Under Which Coal was Formed

The Origin of Crystalline Iron Ores

The Origin and Relations of the Carbon Minerals

Hypothetical High Tides, as Agents of Geological Change

The Genesis and Distribution of Gold

The Geological History of the North American Flora

The Origin and Classification of Ore Deposits