NEWTON, Sir Isaac (1643-1727). Autograph manuscript fragment, n.d., a diagram showing the constituant colours of white light arranged in order on the circumference of a circle, 'red-Orange-yellow-green- Blew-Indigo-Violet', the sectors of yellow and violet/red additionally delimited, a few words in Latin ('... agunt omnia hic/... illic'), and, on the verso apparently in another hand, some text in French ('[g]entilhomme/... cher/... douze') and calculations in Latin, on a fragment of paper (90 x 66mm).

NEWTON, Sir Isaac (1643-1727). Autograph manuscript fragment, n.d., a diagram showing the constituant colours of white light arranged in order on the circumference of a circle, 'red-Orange-yellow-green- Blew-Indigo-Violet', the sectors of yellow and violet/red additionally delimited, a few words in Latin ('... agunt omnia hic/... illic'), and, on the verso apparently in another hand, some text in French ('[g]entilhomme/... cher/... douze') and calculations in Latin, on a fragment of paper (90 x 66mm).

Newton's work on the phenomena of colours spanned the period from his earliest lectures at Cambridge (1670) to the Optics (1704).