Walks and talks in the geological field. [The Gravel Pit -- Among the Glaciers -- The Hillside Spring and its Work -- The Floods of the Great Lakes -- The River Gorge -- A Walk Under the Sea -- By the Rocky Wall -- Liquid Sunlight -- Gaseous Sunlight -- Solidified Sunlight -- The Cemeteries of the Bad Lands -- Lone Burials in the Coal Lands -- Historical glimpses -- The Primeval Storm -- The World