-Copy of image of David Douglas
-2 handwritten letters from Samuel Crosse regarding David Douglas’s telescope.
1) dated April 29th 1920 to The Curator at Kew Gardens, London + photocopy
2) dated May 6th 1920 to Lt. Col. F.R.S. Balfour at Dawyck, Peeblesshire
-Reprint from the Transactions of the Perthshire Society of Natural Science - R. Dow on David Douglas, Scone - "David Douglas, Scone, Botanist and Pioneer of Arboriculture", read 14th April 1910.
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.
Balfour, Colonel Frederick Robert Stephen