Don Carlos Ellis

• Motion pictures in education
• First Exposition of Conservation and Its Builders; an Official History of the National Conservation Exposition, Held at Knoxville, Tenn. , in 1913 and of Its Forerunners, the Appalachian Expositions of 1910-11, Embracing a Review of the Conservation Mo
• First Exposition of Conservation and Its Builders; an Official History of the National Conservation Exposition, Held at Knoxville, Tenn. , in 1913 and of Its Forerunners, the Appalachian Expositions of 1910-11, Embracing a Review of the Conservation...
• Motion Pictures in Education - a Practical Handbook for Users of Visual Aids