Color lithograph reproduces a watercolor portrait caricature of Lyon Playfair, 1st Baron Playfair (1818-1898), a Scottish scientist and Liberal politician. Number 195 in the Vanity Fair collection, "Statesmen." The…
- Circa 1842 – circa 1882 (Letter written on May 12. Year unknown.)
Christison requesting Playfair's opinion of a thesis which he describes as "an incomplete investigation of a difficult subject."