Harold Woolhouse Court landscaping project 1996-7: Planting plans: llists of plants and locations planted, hand drawn planting plans and diagrams, receipts etc.
Sir Alfred Daniel Hall: correspondence and research (mainly about Tulips): photographs, manuscripts and proof papers, notes, notebooks, correspondence, pressed petals, drawings and paintings.
Letter to Sir Daniel Hall from Fred J Clutterden, technical advisor for the Royal Agricultural Society with suggestions on the manuscript of 'The Genus Tulipa'
14 Black and white photographs of different variations of tulip including: Jerusalem, T. cuspidata, T. amabilis, T. rhodopea, T. lanata, T. undulatifoli and Ranallak (1932) and the Persian Crimson Abadan Dunkey (1933)
Paintings of Tulipa by E J Collins
Diagrammatical paintings of 43 varieties of Tulip by E J Collins, watercolour on cartridge paper/card showing different parts of the flower: petals, stamen and ovaries. There are one or more paintings/pencil drawings for each variety
Notes, manuscripts and pressed petals on Tulipa by AD Hall and others
Notes on Tulipa: miscellaneous notes on different varieties
Paper proof on: 'Aphis as a possible vector of "breaking" in tulip species' by AW McKenny Hughes, John Innes Horticultural Institute, with plate of photographs and bibliography