Original and published notes on animal classification, migration, and habitat. Includes articles on bees, African animals, alligators and crocodiles, bison, and fish.

Original and published notes which include (Bulletin of the University of Utah Extension Division, September 1925), and two mounted, printed copies of geological plates showing dinosaur skeletons from Field Columbian Museum.

Original and published notes.

Published notes.

Original notes on fossilized flowering plants--including a series of article drafts and notes titled "Flowers of the Past," articles titled "An Old and Distinguished Family of Plants" about Pasque flowers, and "An Expedition to Hunt for Fossil Flowers"--and notes on a collecting expedition, how fossils are made, the Western Columbine, paleobotany, fossil plants, family genera of plants, and plant distribution. Also included is a bibliography of books needed for a study of fossil plants.

Original and published notes on fossilized plants and mammal bones.

Lists of fossil collections of and by Earl Douglass titled "Geological Specimens Collected by Earl Douglass, 1903," "A Brief Outline of the Collections of Earl Douglass," "List of Fossil Collections of Earl Douglass," "Some of the Fossil-Bearing Formations from Which Earl Douglass Has Made Collections . . .," "List of Mammals, Skulls and Turtles," "Places to Collect and Search for Fossils," and miscellaneous notes.