Khanate of Khiva
He went through the wars of 1866 and 1870 as a spectator with the German armies, and in 1873 he started upon a famous journey through Khorasan with his friend Fred Burnaby. Although he was unable to reach the Khanate of Khiva the results of the journey afforded a great deal of political, geographical and military information, especially as to the advance of Russia in Central Asia.