65 p. Selected sections of Appendix GG: Report of Major N. Michler, Corps of Engineers. Included are annual reports upon works of river improvements for the Willamette, Columbia, and Snake rivers.
53 p. Includes sections of Appendix KK: 1879 annual report of Maj. John M. Wilson, Corps of Engineers, detailing surveys and works of river 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.
8 p. Selected pages of the Report of the Chief of Engineers, United States Army for 1882. Included are annual reports detailing improvements of rivers and harbors in Oregon and Washington territory.
19 p. Selected pages of the Report of the Chief of Engineers for 1871. Also includes annual report on the works of river improvement in Oregon for the fiscal year.