_:vb7452990 "1899, D. A\u00EFtoff, \u201CThe Russian Empire\u201D, in Hugh Robert Mill, transl., edited by Hugh Robert Mill, The International Geography\u200E[1], George Newnes, \u2192OCLC, page 399:"@en . _:vb7452990 "The island of Sakhalin, separated from the mainland by the strait known as the Gulf of Tartary, resembles the neighbouring coast of Russian Manchuria in its configuration. The mountain chain which borders the west coast rises here and there into real peaks of from 3,000 to 5,000 feet in height."@en .