Colour vision
By: by H. E. Roaf.
Publisher: R. & R. Clark
Published: 1930
Place of publication: Edinburgh
Language: eng
Subjects: Color vision.
Other titles: Nature.
Notes: "Substance of a contribution to  a joint discussion - 'In what sense can we speak of primary colours?' - of Section I (Physiology) and Section J (Psychology) of the British Association at Bristol on Sept. 8".

Reprinted from Nature, November 22, 1930.

Caption title.