Other works deserving special mention are: Ermolov, Siberia as a Colony (3rd ed., 1894); Jarilow, Ein Beitrag zur Landwirtschaft in Sibirien (Leipzig, 1896).
Krahmer, Russland in Asien (3 vols., Leipzig, 1898-1900) and Sibirien and die grosse sibirische Eisenbahn (2nd ed., 1900); Wirt Gerrare, Greater Russia (London 1903); J.
Besides the well-known works of Castren, which are a very rich source of information on the subject, Schiefner (St Petersburg academy of science), Donner, Ahlqvist and other explorers of the Ural-Altaians, as also those of the Russian historians Soloviev, Kostomarov, Bestuzhev-Ryumin, Schapov, and Ilovaiskiy, the following containing valuable information may be mentioned: the publications of the Russian Geographical Society and its branches; the Russian Etnographicheskiy Sbornik; the Izvestia of the Moscow society of the amateurs of natural science; the works of the Russian ethnographical congresses; Kostrov's researches on the Siberian Tatars in the memoirs of the Siberian branch of the geographical society; Radlov's Reise durch den Altai, Aus Sibirien; " Picturesque Russia" (Zhivopisnaya Rossiya); Semenov's and Potanin's "Supplements" to Ritter's Asien: Harkavi's report to the congress at Kazan; Hartakhai's "Hist.
See Radloff, Aus Sibirien, ii.; C. de Harlez, Religion nationale des Tatares orientaux; Hiekisch, "Die Tungusen," Mitt.