Geology Writings, undated

“Fallacious Estimates of Prehistoric Time,” undated, 9 p. “Fish Packing in the Rocky Mountains,” undated, 11 p. longhand “Fish Packing in the Rocky Mountains,” undated, 6 p. typescript “Floods in the Missouri River Towards the Close of the Glacial Period,” undated, Version I, 2 p., Version II, 3 p. “Floods in the Glacial Period,” undated, 9 p. “Floods of the Glacial Period,” undated, 2 p.