Goethe's Theory of Colours

Field's Chromatography or Treatise on Colours and Pigments as Used by Artists

Color Value

A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma

Colour Measurement and Mixture

Colour as a Means of Art Being an Adaption of the Experience of Professors to the Practice of Amateurs

Aesthetische Farbenlehre

Light and Colour Theories, and their relation to light and colour standardization

The laws of contrast of colour

Color problems