Report on the routes leading from the coast of Syria to the portion of Armenia between Erzerum and the Russian Frontier Cpt J M Trotter Simla: Intelligence Branch, Quarter Master General's Dept, 1878
Memorandum on a position at Kandahar wherein to meet Russia and a possible extension of frontier to the line Kandahar-Kabul Col A E Perkins Simla, 1885
Report on a reconnaissance from Kurrachee to Kharan and thence to Nushki carried out in 1892. By Cpt R J H L Mackenzie, Deputy Superintendent, Survey of India Calcutta: [Survey of India], 1893