The natural history of Washington territory and Oregon : with much relating to Minnesota, Nebraska, Kansas, Utah, and California between the thirty-sixth and forty-ninth parallels of latitude : being those parts of the final reports on the survey of the Northern Pacific Railroad route, relating to the natural history of the regions explored : with full catalogues and descriptions of the plants and animals collected from 1853 to 1860 / by Geo. Suckley ... and J.G. Cooper ... ; with the co-operation of Messrs. Baird ... ; insects by Dr. John L. Leconte ; mollusca by W.M. Cooper ... ; with fifty-eight plates