A letter from Jane Fergus to Hugh Cleghorn, dated 7 December, 1839
Sin título•Monograph on Figs - draft M/S from I.B.B.'s papers.
•M/S Catalogue of Artocarpeae – L’Herbier Boissier Received with Monograph on Figs in “Balfour, I.B. papers” , filed under “Boissier, P.E.”
•Letter dated 14 March 1847 to G. A. Walker-Arnott filed under “Miquel, A. W.” (Miquel, F. Anton Wilhelm) in main index
"Vorlesungen über Bakterien” Pub. Jena :Fischer,1897..
Sin títuloLetters dated 30 November 1898 & 2 December 1898, Re; Socotra for Chairman's address to Royal Society of Edinburgh; filed with "Balfour, I.B." papers under "Socotra" - misc. correspondence folder - Box 1.
Sin título•1 letter dated December 20, 1837
Sin título•Papers re: 1899 Forbes/ Ogilvie-Grant Expedition to Socotra filed with "Balfour, I.B." papers under "Socotra"
Sin títuloForestry Commission:
Papers /correspondence re: Dutch Elm Disease, filed in Box “Dutch Elm Disease”, - “Papers 1893 – 1953”
Letter from I.B.Balfour, dated 19 Nov. 1903, to N. Smith; Past Master of the Worshipful Company of Carpenters, regarding 'Forestry'.
Imperial Foretry Institute, Oxford -Papers /correspondence re: Dutch Elm Disease, filed in Box “Dutch Elm Disease" “Papers 1893 – 1953”
•1 Letter, dated 24th December 1917, from Lushington to James Sykes Gamble from Madras
Sin título•List of plants collected in Vancouver Island, 1858-61, and adjacent U.S. Territory filed in “L” (Box 2)
Sin título- Five page, Autograph document: Copy of Testament Dative & Inventory of the goods and gear of the late Malcolm McCoig, gardener at the Botanic Gardens Edinburgh, dated 1st April 1789
- One page, Autograph document: Letter from Henry Paton (Genealogist) to Prof. Balfour, dated 7 March 1908, re: the Testament of Malcolm McCoig – to clarify a name referenced in the document (possibly Ludovick Gerardi)
- Printed book extract referring to a proposal to publish a “Flora Edinburgensis” by Malcolm McCoig c.1811