87 books
Reports, with Accompanying Papers Volume 19
Bulletin Volume 1, PT. 1
Reports and Papers Volume 8
Reports, with Accompanying Papers, Volume 14
Reports and Papers Volume 12
Reports, with Accompanying Papers, Volume 12
Annual Report for ... with Accompanying Papers, Volume 7
Reports, with Accompanying Papers Volume 11
Reports and Papers Volume 25
Reports, with Accompanying Papers, Volume 6
Annual Report for with Accompanying Papers Volume 5
Bulletin Volume 1, PT. 2
Annual Report for with Accompanying Papers Volume 9
Reports, with Accompanying Papers, Volume 20
Report on the Geological Survey of the State of Iowa, to the Thirteenth General Assembly, January, 1870 Volume 2; Containng Results of Examinations and Observations Made Within the Years 1866, 1867, 1868 and 1869
Report on the Geological Survey of the State of Iowa Volume 2; Palaeontology
Report on the Geological Survey of the State of Iowa Volume 1,
Report on the Geological Survey of the State of Iowa Volume 1; To the Thirteenth General Assembly, January, 1870, Containing Results of Examinations and Observations Made Within the Years 1866, 1867, 1868, and 1869
Annual Report for with Accompanying Papers Volume 8
Reports, with Accompanying Papers Volume 25
Reports and Papers Volume 23
Reports, with Accompanying Papers Volume 24
Report on the Geological Survey of the State of Iowa (Volume 1, PT. 1); Embracing the Results of the Investigations Made During Portions of the Years 1855, 56 & 57
Reports, with Accompanying Papers (Volume 1)