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•Papers regarding the Victoria Botanic Gardens, Southern Cameroons (1916-1961)
•Papers regarding horticulture and agriculture in Southern Nigeria (1906)
•Illustrations, drawings and abstracts.

•A revised copy of ‘The Scottish Naturalist: Revision of the Uredineae and of the Ustilagineae of Scotland’ (1899) submitted to the Scottish Cryptogamic Society,
• Some correspondence and information regarding a proposed memorial for him.

•Letter to from J. Newman from to H. Watsonby (14 Feb 1871)

•Catalogue of Micrographs of woods structure

•Correspondence with Jonn Mackay (1800-1801), G.A. Walker Arnott (1828), P. Neill (1828), J. McNab (1834), R. Graham (1826), and also referenced to correspondence with G. Don (1802-1812) and W.M. McNab (1818 and 1823).

1 photo album marked 'Vol 2' containing 42 prints of alpine plants; 2 separate prints mounted on card (Cyclamen repandum and Primula reidii); and 3 RHS certificates dated 1947, 1959, and 1964

drawings and photographs used to illustrate Mann's thesis and drawings on permatrace used in other publications.

Added in 2020 (RBGEA2020/007):

3 sets of postcards depicting algae or diatoms as follows:

• 3 envelopes of Algal picture postcards from M. Adei; Scanning electron micrographs of diatoms (1994); Marine algae in coral reef (1993); and Algal vegetation in cold current area (1993)
• pack of 12 poscards from the British Bryological Society (1994)
• pack of Stereographs of the Diatom World, The Educational Association of Algae (2002)

2 labels for identifying part of the process of India Rubber / Gutta Percha production and 7 book plates on note paper forming a small collection.
Book plates: Churchill Babington, John Hutton Balfour, Henry Collins, Daniel Cresswell, Sir Compton Domvile, William Watson and 1 unidentified.
Accrual: Article: 'India Rubber' by James Collins, formerly Government Economic Botanist and Librarian, Straits Settlement, etc. as published in 'The Cottager and Artisan', September 1897, pp.107-108, published by the Religious Tract Society, London. Also, a card with a poem on it: 'The Twins' by J. Rushton, on the back of which is a Note about the opening hours of the India Office Museum.

1 sheet with John Sibthorp's book plate attached to it, alongside email correspondence outlining the discovery.

One Field diary produced by the Wild Flower Society in which wild flowers are listed. Judith Basden has filled in dates and locations for ones she has found giving us a botanical record for the area mainly around Bonnyrigg.