Paintings (watercolour, gouche), hand-coloured photographs and photographs produced in collaboration with scientists at the JI to illustrate colours and genetic variation.
8 Tulip Paintings donated by Peter Matthews (2000). Paintings by HCO prepared for use in 'The Genus Tulipa' (1940) by Sir A Daniel Hall. 4 used in 'The Genus Tulipa': plate nos. XIX, XXIII, XXVI and XXXV. Note (Feb 2024) 1 MISSING: Cat ref: 2.1.e: The Tulip, Pl. XVII (facing p.140): Darwin Tulips 'Rev H Ewbank', 'Suzon', 13 x 17 cm. Incorrectly labelled "plate XXI" on reverse.
Painting on white card ( 13 x 17 cm): as in Genus Tulipa, Pl. XXXV
Painting on white card of two red tulips (not identified in book). (16 x 14.5 cm). Signed 'HCO'. Annotated on reverse 'not used in book'.
1 painting (watercolour) of a tulip petal, 6 hand-coloured photographs and 8 black & white photographs of Murillo tulips.
Watercolour of a Murillo tulip petal on white card (6.9 x 10.1 cm), petal coloured light pink/white/dark pink and yellow base, inscribed in pencil' 45.27 Princess Mary, sporting Murillo'.
Hand-coloured photograph of two Murillo tulip petals, red and yellow, back dated March 1927, signed HCO.
2 x hand-coloured photographs of a fully open murillo tulip, same or similar to Double Murillo with Keizerkroon, hand-coloured mainly white with orange/yellow/ red splashes. Backs inscribed '4/24' and dated April 1924.