Indian frontier policy [Note prepared for Sir John Gorst as material for a reply to Mr Slagg's motion in the House of Commons on 13 March 1888, with appended note on the Hindu-Kush passes by Brig-Gen Sir W S A Lockhart, 9 March 1888] 12 Mar 1888
[Letter dated 12 Aug 1889, Ardmore, Ireland] from Colonel Sir Robert Sandeman, KCSI, Governor-General's Agent and Chief Commissioner, Baluchistan, to Sir H M Durand, KCIE, CSI, Secretary to the Government of India, Foreign Department, Simla [on the Zhob Valley tour] 12 Aug 1889