The book below, History of Russia from the Earliest Period to the Present Time by Walter K. Kelly, describes the history of Russia up to the death of Emperor Nicholas I of Russia in 1855.
History of Russia from the Earliest Period to the Present Time, Vol. I (file size: about 27 MB)
History of Russia from the Earliest Period to the Present Time, Vol. II, pages 1-194 (file size: about 13 MB)
History of Russia from the Earliest Period to the Present Time, Vol. II, pages 195-end (file size: about 22 MB)