65 p. Includes sections of Appendix PP: 1883 annual report of Capt. Charles F. Powell, Corps of Engineers, detailing construction, and other works of river and harbor improvements for the Willamette and...
59 p. Includes sections of Appendix OO: 1882 annual report of Capt. Charles F. Powell, Corps of Engineers, detailing construction, surveys and other works of improvement for the Willamette and Columbia...
9 p. Selected pages from the Annual Report of the Chief of Engineers, United States Army for 1883. Included are annual reports upon works of river and harbor improvements for the Willamette and Columbia...
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....
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.
58 p. Includes sections of Appendix OO: 1881 annual report of Maj. G. L. Gillespie, Corps of Engineers, Bvt. Lieut. Col., detailing construction, navigation, surveys and other works of river improvements...
16 p. Selected pages of the Appendixes to the Report of the Chief of Engineers for 1874. Included are annual reports upon works of improvements for the Willamette and Columbia rivers.
53 p. Includes sections of Appendix QQ: 1884 annual report of Capt. Charles F. Powell, Corps of Engineers, detailing construction, surveys and other works of river and harbor improvements for the Willamette...
12 p. Selected pages of the Report of the Chief of Engineers, United States Army for 1885. Included are annual reports upon works of river and harbor improvements for the Willamette, Columbia and Snake...
4 p. Selected pages of the Report of the Chief of Engineers for 1875. Includes reports on the improvement of rivers in Oregon and Washington territory.
13 p. Selected pages of the Report of the Chief of Engineers for 1873. Also included are annual reports on the works of river improvement for the Willamette and Columbia rivers, Oregon.
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.