The Merv Oasis : travels and adventures east of the Caspian during the years 1879-80-81, including five months' residence among the Tekkés of Merv Vol. I 1883
The Merv Oasis : travels and adventures east of the Caspian during the years 1879-80-81, including five months' residence among the Tekkés of Merv Vol. II 1883