4 p. Selected pages of the Report of the Chief of Engineers for 1878. Included are annual reports detailing improvements of the Columbia, Snake, and Willamette rivers in Oregon and Washington territory.
4 p. Selected pages of the Report of the Chief of Engineers for 1877. Included are annual reports detailing improvements of rivers in Oregon and Washington territory.
42 p. Includes sections of Appendix JJ: 1878 annual report of Maj. John M. Wilson, Corps of Engineers, detailing surveys and works of river improvements for the Willamette and Columbia rivers.
32 p. Includes sections of Appendix FF: Annual reports of Maj. N. Michler, Corps of Engineers, detailing works of river improvements for the Willamette and Columbia rivers.
6 p. Selected pages of the Report of the Chief of Engineers for 1879. Included are annual reports upon works of river improvements for the Willamette and Columbia rivers.