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GB 235 ARM/1 - Lecture on 'Stimulation of Plant Growth' given at 3pm on the 5th March 1912 to the Royal Horticultural Society, Vincent Square, Westminster, this is a typescript from shorthand notes taken by Mr. C.E. Barnett of Grecian Chambers, Devereux Court, W.C. London. These are notes of a lecture on how plants are stimulated to grow, with practical demonstrations.
GB 235 ARM/2 - Lecture on 'Enzymes in Relation to Plant Growth' given on the 3rd June 1921 at King's College, Cambridge. Consists of two lectures on the same subject with demonstrations, slides and blackboard formulae, covering enzymes, their definitions and how they are believed to interact to promote plant growth.

GB 235 GWA/1/1-2 - 'Manuscripts of some of Professor Walker Arnott's lectures, chiefly on roots and an 'Interesting historical account of the potato'', 19th century.
1st manuscript, 23 pages, covers the history of the potato and its cultivation and commercial uses, marketing and preparation for consumption. Refers to the first cultivation of the plant in Scotland in Kilsyth in 1728, and then Forfar in 1730.
2nd manuscript, 17 pages, is a continuation of the first and is devoted to many other root vegetables ranging from onions to cassava, heath pea and ginseng etc.
GB 235 GWA/2 - manuscript, 55 pages, covering the history of gardens with reference to botanic and research gardens, including a potential plan of the Royal Botanic Society of London, 19th century.
GB 235 GWA/3 - Letter from G.A. Walker Arnott to John Forbes Royale regarding the identification of plant species, written on 5th June 1837 from Arlary by Kinross. Letter refers to expectations of producing a book with Prof. Nees v Esenbeck in Germany on Himalayan plants. There is a typed transcript of this letter.
GB 235 GWA/4 - Copy of a letter from I. Bayley to Principal Barclay regarding G.A. Walker Arnott's estate/botanical collection post death, written on the 5th November 1868 alongside a copy of a letter from Bayley's son George(?) Bayley to Isaac Bayley Barclay at Glasgow University, 15 December 1880, confirming what happened to Walker Arnott's botanical collection and mahogany cabinet in 1869. Originals filed in Bayley Balfour's correspondence under G Bayley.
GB 235 GWA/5 - Copy of the biographical obituary notice of the late Dr. G.A. Walker Arnott (1868) by Dr. Hugh Cleghorn for the Transactions of the Botanical Society of Edinburgh.

Personal communication between Roger West and Ian Murray M.P. regarding outbreak of Ash Dieback Disease, Chalara fraxinea - includes Parliamentary question and small report.

Paper on 'Experiments on the Analysis of Heavy Inflammable Air' (1789) published in the Philosophical Transactions of the Royal Society of London in 1780 - (right click, open link in new tab) https://archive.org/details/jstor-106830 - there is a copy of the paper in the packet alongside the handwritten manuscript, possibly written by Austin himself. Manuscript is incomplete, 8 pages along, finishing on page 56 of the article. There is also a copy of Austin's entry in the Dictionary of National Biography in the packet.

Papers relating to Colonel F.R.S. Balfour of Dawyck, including Correspondence, papers relating to the Rhododendron Conference due to be held in 1939, and papers related to the Landowners' Co-operative Forestry Society Ltd.

• A catalogue of the plants gathered on the islands of North Uist, Harris and Lewis during a botanical excursion, (August, 1841).
• Copy of Syllabus Botanical Lectures (1862)
• Two letters to Parnell dated 1847 and 1848
• Two letters to the Botanical Society dated 1841and 1843

‘Short Account of the Fossil Tree at Kinneil’, written by William Badger in July 1875. Account includes 3 sketches of the Fossil Tree, numbered 1,2 and 4.

• Notebook list of collection, list of plants in Whittinghame collection

M/S Catalogue of Artocarpeae, "L'Herbier Boissier" by Pierre Edmond Boissier, catalogue comprising 42 mss leaves, 200 x 320mm

Correspondence regarding the membership of the Natural History Society and other references. Bolton, James (fl. 1750s-1799)