The Northwest passage by land. Being the narrative of an expedition from the Atlantic to the Pacific. Undertaken with yhe view of exploring a route across the continent to British Columbia through British territory, by one of the northern passes in the Rocky Mountains. By Viscount Milton, M.P., F.R.G.S. and W. B. Cheadle, M.A. - Milton, William Fitzwilliam, Vizconde (Cassell, Petter, and Galpin, 1865)