Roy Osborne
1948
Designing With Color
On colours
Books on Colour 1500-2000
Color Influencing Form
Lights and pigments
On the Signification of Colours
Telesio and Morato on the Meaning of Colours (Renaissance Colour Symbolism II)
Books on colour since 1500Sicily Herald and the Blazon of Colours (Renaissance Colour Symbolism I)
The cycad collection of the Durban Botanic Gardens