- GB235 DOU
- 1799 - 1834
-Photograph 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.