2026-07-26T22:58:18Z https://pubs.lib.uiowa.edu/igsar/api/oai/

oai:igsar:id:837 1943-01-01T01:00:00Z

Cambrian Strata of Northeastern Iowa Cambrian Strata of Northeastern Iowa Schuldt, Walter C. 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1299 https://doi.org/10.17077/2160-5270.1299 https://pubs.lib.uiowa.edu/igsar/article/id/837/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 379-422

oai:igsar:id:838 1943-01-01T01:00:00Z

Ceramic Shales and Clays of Iowa Ceramic Shales and Clays of Iowa Gwynne, Charles S. 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1298 https://doi.org/10.17077/2160-5270.1298 https://pubs.lib.uiowa.edu/igsar/article/id/838/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 263-378

oai:igsar:id:839 1943-01-01T01:00:00Z

Forty-ninth and Fiftieth Annual Reports of the State Geologist Forty-ninth and Fiftieth Annual Reports of the State Geologist Trowbridge, Arthur C. 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1296 https://doi.org/10.17077/2160-5270.1296 https://pubs.lib.uiowa.edu/igsar/article/id/839/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ vii-xii

oai:igsar:id:835 1943-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXVIII, Annual Reports, 1940 and 1941, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXVIII, Annual Reports, 1940 and 1941, with Accompanying Papers 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1295 https://doi.org/10.17077/2160-5270.1295 https://pubs.lib.uiowa.edu/igsar/article/id/835/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ i-vi

oai:igsar:id:836 1943-01-01T01:00:00Z

Mineral Production in Iowa in 1939 and 1940 Mineral Production in Iowa in 1939 and 1940 Hershey, H. Garland 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1300 https://doi.org/10.17077/2160-5270.1300 https://pubs.lib.uiowa.edu/igsar/article/id/836/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 423-456

oai:igsar:id:840 1943-01-01T01:00:00Z

The Illinoian and Post-Illinoian Pleistocene Geology of Iowa The Illinoian and Post-Illinoian Pleistocene Geology of Iowa Kay, George F. Graham, Jack B. 1943-01-01T01:00:00Z info:eu-repo/semantics/article 38 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1297 https://doi.org/10.17077/2160-5270.1297 https://pubs.lib.uiowa.edu/igsar/article/id/840/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-262

oai:igsar:id:987 1941-01-01T01:00:00Z

A Summary of Mineral Production in Iowa 1895-1938 A Summary of Mineral Production in Iowa 1895-1938 Hershey, H. Garland 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1283 https://doi.org/10.17077/2160-5270.1283 https://pubs.lib.uiowa.edu/igsar/article/id/987/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 447-474

oai:igsar:id:989 1941-01-01T01:00:00Z

Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist Trowbridge, Arthur C. 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1278 https://doi.org/10.17077/2160-5270.1278 https://pubs.lib.uiowa.edu/igsar/article/id/989/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ vii-xiv

oai:igsar:id:984 1941-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXVII, Annual Reports, 1934, 1935, 1936, 1937, 1938, and 1939, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXVII, Annual Reports, 1934, 1935, 1936, 1937, 1938, and 1939, with Accompanying Papers 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1277 https://doi.org/10.17077/2160-5270.1277 https://pubs.lib.uiowa.edu/igsar/article/id/984/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ i-vi

oai:igsar:id:985 1941-01-01T01:00:00Z

Mineral Production in Iowa for the years 1933-1938 Mineral Production in Iowa for the years 1933-1938 Hershey, H. Garland 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1282 https://doi.org/10.17077/2160-5270.1282 https://pubs.lib.uiowa.edu/igsar/article/id/985/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 375-446

oai:igsar:id:988 1941-01-01T01:00:00Z

Pollen Analysis of Interglacial Peats of Iowa Pollen Analysis of Interglacial Peats of Iowa Lane, Geo. H. 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1280 https://doi.org/10.17077/2160-5270.1280 https://pubs.lib.uiowa.edu/igsar/article/id/988/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 233-262

oai:igsar:id:986 1941-01-01T01:00:00Z

The Geology of Adams County The Geology of Adams County Wood, Lyman W. 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1281 https://doi.org/10.17077/2160-5270.1281 https://pubs.lib.uiowa.edu/igsar/article/id/986/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 263-374

oai:igsar:id:990 1941-01-01T01:00:00Z

The Pleistocene Gravels of Iowa The Pleistocene Gravels of Iowa Kay, George F. Miller, Paul T. 1941-01-01T01:00:00Z info:eu-repo/semantics/article 37 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1279 https://doi.org/10.17077/2160-5270.1279 https://pubs.lib.uiowa.edu/igsar/article/id/990/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-232

oai:igsar:id:1083 1935-01-01T01:00:00Z

Additional Deep Wells Additional Deep Wells Lees, James H. 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1266 https://doi.org/10.17077/2160-5270.1266 https://pubs.lib.uiowa.edu/igsar/article/id/1083/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 365-420-2b

oai:igsar:id:1084 1935-01-01T01:00:00Z

Deep Wells Drilled in Iowa 1928-1932 Deep Wells Drilled in Iowa 1928-1932 Norton, W. H. 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1265 https://doi.org/10.17077/2160-5270.1265 https://pubs.lib.uiowa.edu/igsar/article/id/1084/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 311-364

oai:igsar:id:1081 1935-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXVI, Annual Reports, 1930, 1931, 1932, and 1933, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXVI, Annual Reports, 1930, 1931, 1932, and 1933, with Accompanying Papers 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1262 https://doi.org/10.17077/2160-5270.1262 https://pubs.lib.uiowa.edu/igsar/article/id/1081/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-4

oai:igsar:id:1085 1935-01-01T01:00:00Z

Letter of Transmittal Letter of Transmittal Kay, George F. 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1263 https://doi.org/10.17077/2160-5270.1263 https://pubs.lib.uiowa.edu/igsar/article/id/1085/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 5-6

oai:igsar:id:1082 1935-01-01T01:00:00Z

Mineral Production in Iowa in 1930, 1931 and 1932 Mineral Production in Iowa in 1930, 1931 and 1932 Lees, James H. 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1267 https://doi.org/10.17077/2160-5270.1267 https://pubs.lib.uiowa.edu/igsar/article/id/1082/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 421-472

oai:igsar:id:1086 1935-01-01T01:00:00Z

The Road and Concrete Materials of Southern Iowa The Road and Concrete Materials of Southern Iowa Wood, L. W. 1935-01-01T01:00:00Z info:eu-repo/semantics/article 36 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1264 https://doi.org/10.17077/2160-5270.1264 https://pubs.lib.uiowa.edu/igsar/article/id/1086/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 7-310-4a

oai:igsar:id:807 1931-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXV, Annual Report, 1929, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXV, Annual Report, 1929, with Accompanying Papers 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1246 https://doi.org/10.17077/2160-5270.1246 https://pubs.lib.uiowa.edu/igsar/article/id/807/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-4

oai:igsar:id:814 1931-01-01T01:00:00Z

Further Studies on the Pleistocene Geology of Northwestern Iowa Further Studies on the Pleistocene Geology of Northwestern Iowa Carman, J. Ernest 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1248 https://doi.org/10.17077/2160-5270.1248 https://pubs.lib.uiowa.edu/igsar/article/id/814/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 15-194

oai:igsar:id:809 1931-01-01T01:00:00Z

Mineral Production in Iowa in 1928 and 1929 Mineral Production in Iowa in 1928 and 1929 Lees, James H. 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1253 https://doi.org/10.17077/2160-5270.1253 https://pubs.lib.uiowa.edu/igsar/article/id/809/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 499-548

oai:igsar:id:808 1931-01-01T01:00:00Z

Natural Molding Sands of Iowa Natural Molding Sands of Iowa Smith, John E. 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1251 https://doi.org/10.17077/2160-5270.1251 https://pubs.lib.uiowa.edu/igsar/article/id/808/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 453-488

oai:igsar:id:811 1931-01-01T01:00:00Z

On a New Specimen of a Paleoniscid Brain from Iowa On a New Specimen of a Paleoniscid Brain from Iowa Moodie, Roy L. 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1252 https://doi.org/10.17077/2160-5270.1252 https://pubs.lib.uiowa.edu/igsar/article/id/811/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 489-498

oai:igsar:id:812 1931-01-01T01:00:00Z

The Dakota Stage of the Type Locality The Dakota Stage of the Type Locality Tester, Allen C. 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1249 https://doi.org/10.17077/2160-5270.1249 https://pubs.lib.uiowa.edu/igsar/article/id/812/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 195-332

oai:igsar:id:810 1931-01-01T01:00:00Z

The Stratigraphy of the Kinderhook Series of Iowa The Stratigraphy of the Kinderhook Series of Iowa Laudon, Lowell Robert 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1250 https://doi.org/10.17077/2160-5270.1250 https://pubs.lib.uiowa.edu/igsar/article/id/810/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 333-452

oai:igsar:id:813 1931-01-01T01:00:00Z

Thirty-Eighth Annual Report of the State Geologist Thirty-Eighth Annual Report of the State Geologist Kay, George F. 1931-01-01T01:00:00Z info:eu-repo/semantics/article 35 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1247 https://doi.org/10.17077/2160-5270.1247 https://pubs.lib.uiowa.edu/igsar/article/id/813/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 5-14

oai:igsar:id:1028 1929-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXIV, Annual Report, 1928, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXIV, Annual Report, 1928, with Accompanying Papers 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1240 https://doi.org/10.17077/2160-5270.1240 https://pubs.lib.uiowa.edu/igsar/article/id/1028/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ cover-iv

oai:igsar:id:1030 1929-01-01T01:00:00Z

Index, Iowa Geological Survey Annual Report, vol. 34 issue 1 Index, Iowa Geological Survey Annual Report, vol. 34 issue 1 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1244 https://doi.org/10.17077/2160-5270.1244 https://pubs.lib.uiowa.edu/igsar/article/id/1030/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 441-448

oai:igsar:id:1029 1929-01-01T01:00:00Z

Mineral Production in Iowa in 1927 Mineral Production in Iowa in 1927 Lees, James H. 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1245 https://doi.org/10.17077/2160-5270.1245 https://pubs.lib.uiowa.edu/igsar/article/id/1029/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 449-464

oai:igsar:id:1033 1929-01-01T01:00:00Z

The Pre-Illinoian Pleistocene Geology of Iowa The Pre-Illinoian Pleistocene Geology of Iowa Kay, George F. Appel, Earl T. 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1242 https://doi.org/10.17077/2160-5270.1242 https://pubs.lib.uiowa.edu/igsar/article/id/1033/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-304

oai:igsar:id:1031 1929-01-01T01:00:00Z

The Stratigraphy and Paleontology of the Maquoketa Shale of Iowa, Pt. 1 The Stratigraphy and Paleontology of the Maquoketa Shale of Iowa, Pt. 1 Ladd, Harry Stephen 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1243 https://doi.org/10.17077/2160-5270.1243 https://pubs.lib.uiowa.edu/igsar/article/id/1031/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 305-440

oai:igsar:id:1032 1929-01-01T01:00:00Z

Thirty-Seventh Annual Report of the State Geologist Thirty-Seventh Annual Report of the State Geologist Kay, George F. 1929-01-01T01:00:00Z info:eu-repo/semantics/article 34 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1241 https://doi.org/10.17077/2160-5270.1241 https://pubs.lib.uiowa.edu/igsar/article/id/1032/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ v-viii

oai:igsar:id:781 1928-01-01T01:00:00Z

Deep Wells of Iowa (A Supplementary Report) with a Chapter on Well Water Recessions in Iowa (pp.215-438) Deep Wells of Iowa (A Supplementary Report) with a Chapter on Well Water Recessions in Iowa (pp.215-438) Norton, W. H. Lees, James H. 1928-01-01T01:00:00Z info:eu-repo/semantics/article 33 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1238 https://doi.org/10.17077/2160-5270.1238 https://pubs.lib.uiowa.edu/igsar/article/id/781/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 215-438

oai:igsar:id:783 1928-01-01T01:00:00Z

Deep Wells of Iowa (A Supplementary Report) with a Chapter on Well Water Recessions in Iowa (pp.9-215) Deep Wells of Iowa (A Supplementary Report) with a Chapter on Well Water Recessions in Iowa (pp.9-215) Norton, W. H. Lees, James H. 1928-01-01T01:00:00Z info:eu-repo/semantics/article 33 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1237 https://doi.org/10.17077/2160-5270.1237 https://pubs.lib.uiowa.edu/igsar/article/id/783/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 9-215

oai:igsar:id:779 1928-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXIII, Annual Report, 1927, with an Accompanying Paper on the Deep Wells of Iowa Front Matter, Iowa Geological Survey, Volume XXXIII, Annual Report, 1927, with an Accompanying Paper on the Deep Wells of Iowa 1928-01-01T01:00:00Z info:eu-repo/semantics/article 33 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1235 https://doi.org/10.17077/2160-5270.1235 https://pubs.lib.uiowa.edu/igsar/article/id/779/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-4

oai:igsar:id:780 1928-01-01T01:00:00Z

Index, Iowa Geological Survey Annual Report, vol. 33 issue 1 Index, Iowa Geological Survey Annual Report, vol. 33 issue 1 1928-01-01T01:00:00Z info:eu-repo/semantics/article 33 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1239 https://doi.org/10.17077/2160-5270.1239 https://pubs.lib.uiowa.edu/igsar/article/id/780/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 439-448

oai:igsar:id:782 1928-01-01T01:00:00Z

Thirty-Sixth Annual Report of the State Geologist Thirty-Sixth Annual Report of the State Geologist Kay, George F. 1928-01-01T01:00:00Z info:eu-repo/semantics/article 33 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1236 https://doi.org/10.17077/2160-5270.1236 https://pubs.lib.uiowa.edu/igsar/article/id/782/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 5-8

oai:igsar:id:972 1927-01-01T01:00:00Z

Altitudes in Iowa Altitudes in Iowa Lees, James H. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1233 https://doi.org/10.17077/2160-5270.1233 https://pubs.lib.uiowa.edu/igsar/article/id/972/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 363-550

oai:igsar:id:973 1927-01-01T01:00:00Z

Front Matter, Iowa Geological Survey, Volume XXXII, Annual Reports, 1925 and 1926, with Accompanying Papers Front Matter, Iowa Geological Survey, Volume XXXII, Annual Reports, 1925 and 1926, with Accompanying Papers 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1223 https://doi.org/10.17077/2160-5270.1223 https://pubs.lib.uiowa.edu/igsar/article/id/973/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 1-6

oai:igsar:id:976 1927-01-01T01:00:00Z

Geology of Crawford County Geology of Crawford County Lees, James H. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1232 https://doi.org/10.17077/2160-5270.1232 https://pubs.lib.uiowa.edu/igsar/article/id/976/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 239-362

oai:igsar:id:974 1927-01-01T01:00:00Z

Geology of Lucas County Geology of Lucas County Lugn, Alvin Leonard 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1231 https://doi.org/10.17077/2160-5270.1231 https://pubs.lib.uiowa.edu/igsar/article/id/974/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 101-238

oai:igsar:id:977 1927-01-01T01:00:00Z

Index, Iowa Geological Survey Annual Report, vol. 32 issue 1 Index, Iowa Geological Survey Annual Report, vol. 32 issue 1 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1234 https://doi.org/10.17077/2160-5270.1234 https://pubs.lib.uiowa.edu/igsar/article/id/977/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 551-557

oai:igsar:id:975 1927-01-01T01:00:00Z

Iowa Coal Areas and Characteristics of Iowa Coal Iowa Coal Areas and Characteristics of Iowa Coal Lees, James H. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1228 https://doi.org/10.17077/2160-5270.1228 https://pubs.lib.uiowa.edu/igsar/article/id/975/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 65-81

oai:igsar:id:982 1927-01-01T01:00:00Z

Letter of Transmittal Letter of Transmittal Kay, George F. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1224 https://doi.org/10.17077/2160-5270.1224 https://pubs.lib.uiowa.edu/igsar/article/id/982/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 7-8

oai:igsar:id:983 1927-01-01T01:00:00Z

Mineral Production in Iowa in 1925 Mineral Production in Iowa in 1925 Lees, James H. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1225 https://doi.org/10.17077/2160-5270.1225 https://pubs.lib.uiowa.edu/igsar/article/id/983/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 9-34

oai:igsar:id:981 1927-01-01T01:00:00Z

Mineral Production in Iowa in 1926 Mineral Production in Iowa in 1926 Lees, James H. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1226 https://doi.org/10.17077/2160-5270.1226 https://pubs.lib.uiowa.edu/igsar/article/id/981/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 35-50

oai:igsar:id:978 1927-01-01T01:00:00Z

Possible Researches in Iowa Coal Possible Researches in Iowa Coal Fleming, B. P. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1230 https://doi.org/10.17077/2160-5270.1230 https://pubs.lib.uiowa.edu/igsar/article/id/978/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 91-100

oai:igsar:id:979 1927-01-01T01:00:00Z

Rock Resources of Iowa Rock Resources of Iowa Kay, George F. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1227 https://doi.org/10.17077/2160-5270.1227 https://pubs.lib.uiowa.edu/igsar/article/id/979/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 51-65

oai:igsar:id:980 1927-01-01T01:00:00Z

The Use of Iowa Coal for Steam Production The Use of Iowa Coal for Steam Production Marsh, T. A. 1927-01-01T01:00:00Z info:eu-repo/semantics/article 32 1 Iowa Geological Survey Iowa Geological Survey Annual Report archive 10.17077/2160-5270.1229 https://doi.org/10.17077/2160-5270.1229 https://pubs.lib.uiowa.edu/igsar/article/id/980/ 2160-5300 http://creativecommons.org/publicdomain/mark/1.0/ 82-91 metadataPrefix%3Doai_dc%26page%3D2