Notes and text for five lectures on geology. Sir Archibald Geikie placed civilisation, religion and mythology in the context of geological development, looking at geolgical formations and the processes and materials involved in their creation.

The Correspondence: Sir Arthur William Rücker to James Smith sub-series consists of:

Lecture on the materials the land is composed of and their origins, including types of rocks and volcanic activity.

Text of lecture looking at geological themes, such as landscape, physical geography, the formation of continents, types of rock and volcanic activity, and relating them to such subjects as the relationship between man and nature, mythology, history and religion.

Notes and text for seven lectures looking at the geological history of the American continent, looking at specific locations therein, based partly on results from American survey work. These locations were related to to other places around the world, particularly in Britain and Europe. A variety of geological formations were looked at, including that of the continent itself, considering the materials which make them up and the geological timeframe.