An Explorer's Religion (ms and ts drafts and printed version of address delivered at the 'Guildhouse', Jun 1936, and published in Atlantic Monthly, Dec 1936)
India and the World (ms and ts drafts and printed version of article in the Nineteenth Century; ms draft and associated notes of another paper under the same title)
The Mustagh Pass in 1887: one of the Papers on Incidents in the History of Exploration read to the Royal Geographical Society during its centenary celebrations (ms and proof) [see also No 520]