Booklet of coloured silk threads used by John Dalton to assess his colour vision
- part of archive:
- Collection of material relating to colour perception
- Dalton, John
Booklet records Dalton's perception of various coloured threads in daylight and in candlelight, and is inscribed on the flyleaf by J.F.W. Herschel 'This Book was given me by John Dalton ...'