- The Painter's Palette: A Theory Of Tone Relations, An Instrument Of Expression (1919)
- A Theory Of Pure Design: Harmony, Balance, Rhythm
- The Painter's Palette: A Theory of Tone Relations, an Instrument of Expression
- Studies in the Early History of Institutions: The Theory of Primitive Democracy in the Alps
- Studies in the Early History of Institutions: The Theory of Primitive Democracy in the Alps