1. 'The Supposed Spiritual Authority of the Caliph' Contributor: Sir Knight Thomas Walker Arnold (author) Date: 1918/1918 Language: English Extent: 1 file (4 folios)
2. Notes by Sir Thomas Walker Arnold dated 1 May 1922, 1 July 1922 and August 1922 Contributor: Sir Knight Thomas Walker Arnold (author) Date: 1922/1922 Language: English Extent: 1 file (2 folios)