9 p. Selected pages of the Report of the Chief of Engineers, United States Army for 1886. Included are annual reports upon works of river and harbor improvements for the Willamette, Columbia and Snake rivers.
11 p. Selected pages of the Report of the Chief of Engineers, United States Army for 1884. Included are annual reports upon works of river and harbor improvements for the Willamette and Columbia rivers.
9 p. Selected pages of the Report of the Chief of Engineers, United States Army for 1882. Included are annual reports upon works of river and harbor improvements for the Willamette and Columbia rivers.