1 20 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Indian Territory— Continued. 
Manganese, Weeks, 5966. 
Ouachita Mountain range in Indian Terri- 
tory, Taff, 5293. 
Public lands and their water supply, Newell, 
4085. 
Physiographic types, Gannett, 1942. 
Triangulation and spirit leveling, Fitch, 1823. 
Iowa. 
A Devonian Ichthyodorulite, Lindahl, 3513. 
A notable ride from driftless area to Iowan 
drift, Calvin, 719. 
A sandstone in which the grains are enlarged 
by secondary deposition of silica, Calvin, 
693. 
Aftonian and pre-Kansan deposits, Bain, 199. 
Age of the Sioux quartzite, Keyes, 3078. 
Anomalies of stratification, Calvin, 704. 
Artesian wells of Belle Plaine, Mosnat, 4043. 
Astesian wells in Iowa, Call, 677. 
Artesian wells of Iowa, Norton, 4122. 
Bethany limestone, Bain, 198. 
Bibliography of Iowa geology, Keyes, 3048. 
Buchanan gravels, Calvin, 702, 703. 
Buried loess in Story County, Beyer, 437. 
Buried river channels in Iowa, Gordon, 2062. 
Burlington artesian well, Fultz, 1931. 
Carboniferous formations of southwestern 
Iowa, Keyes, 3128. 
Carboniferous of southwestern Iowa, Lons- 
dale, 3569. 
Cardiocarpus in Iowa, Jones, 2926. 
Catalogue of minerals, Keyes,- 3047. 
Cedar Valley quarry, Iowa, Calvin, 705. 
Cement materials in Iowa, Lonsdale, 3568. 
Cephalopods from the Paleozoic, Keyes, 3105. 
Clays of the Indianola works, Iowa, Youtz, 
6536. 
Clay-working industry, Ries, 4619. 
Coal deposits of Iowa, Keyes, 3045, 3063. 
Coal deposits of trans-Mississippian field 
Keyes, 3139. 
Coal Measures and St. Louis limestone, un- 
conformity of, Keyes, 3057. 
Coal Measures of Poweshiek County, Jones, 
2925. 
Coal mining in Iowa, Bain, 186. 
Coal supplies of Polk County, Iowa, Davis, F., 
1345. 
Composition and origin of Iowa chalk, Calvin, 
695. 
Correlation of Devonian faunas, Weller, 5982. 
Cretaceous deposits, Calvin, 688. 
Cretaceous deposits of the Sioux Valley, Bain, 
170. 
Cretaceous drift pebbles, Udden, 5520. 
Cretaceous flora of western Iowa, Bartsch, 
272. 
Cretaceous formations of Iowa, Keyes, 3064. 
Cretaceous in Iowa, Lonsdale, 3565. 
Cretaceous in Iowa, Keyes, 3041. 
Cretaceous, relation of, Calvin, 685. 
Ctenacanthus spines from the Keokuk, East- 
man, 1598. 
Deep wells in Iowa,. Fultz, 1930. 
Dentition of Devonian Ptyctodontida-, East- 
man, 1601. 
Iowa— Continued. 
Deposition of the Burlington limestones, 
Fultz, 1921, 1922. 
Des Moines coal-bearing series, Keyes, 3113. 
Devonian and Carboniferous outliers in [owa, 
Norton, 4166. 
Devonian series in Iowa, Norton, 411f>. 
Diatomaceous earth in Muscatine County, 
Udden, 5521. 
Dipterus in American Devonian, Udden. 5519. 
Distribution of loess fossils, Shiniek, 4958. 
Drift deposits of Iowa, Caivin, 708. 
Dolomites from the Niagara, Houser, 2762. 
Drift of Iowa, Bain, 206. 
Drift section at Oelwein, Finch, 1817. 
Drift section of Lamoni. Fitzpatrick, 1824. 
Dubuque lead and zinc mines, Bain, 207. 
Echinodermata, new species of, Miller and 
Gurley, 3991. 
Economic geology of Des Moines County, 
Keyes, 3075. 
Economic geology of Lee County, Keyes, 
3074. 
Extension of the Illinois lobe of the ice sheet 
into Iowa, Fultz, 1927. 
Fifth Annual Report of State Geologist, Cal- 
vin, 710. 
Florencia formation, Pilsbry, 4382. 
Formation of certain quartzites, Keyes, 3066. 
Fossil diatomaceous deposit, Myers, 4054, 
Fossils faunas in the Kinderhook beds at 
Burlington, Weller, 6005. 
Fossil fishes in the Devonian of Iowa, East- 
man, 1603. 
Fossiliferous concretions in Iowa, Spencer, 
5112. 
Fossils from Lower Magnesian, Calvin, 684. 
Frozen streams of the Iowa drift border, Wil- 
son, 6265. 
Gas well near Letts. Witter, 6401. 
Geological formation, Keyes, 3046. 
Geological reconnoissance, Calvin, 691. 
Geological section along Middle River, in 
Iowa, Tilton, 5391. 
Geological section of an artesian well at Cedai 
Rapids, Norton, 4120. 
Geological work in Madison County, Tilton 
5395. 
Geology of Allamakee County, Calvin, 696. 
Geology of Appanoose County, Bain, 181. 
Geology of Boone County, Beyer, 432. 
Geology of Buchanan County, Calvin, 715. ' 
Geology of Carroll County, Bain, 205. 
Geology of Cerro Gordo County, Calvin, 712 
Geology of Dallas County, Leonard, 3464. 
Geology of Decatur County, Bain, 195. 
Geology of Delaware County, Calvin, 714. 
Geology of Dubuque County, Calvin and Bain 
720. 
Geology of Guthrie County, Bain, 193. 
Goology of Hardin County, Beyer, 438. 
Geology of Humboldt County, Macbride, 362< 
Geology of Johnson County, Calvin, 711. 
Geology of Jones County, Calvin, 699. 
Geology of Keokuk County, Bain, 171. 
Geology of Linn County, Norton, 4118. 
Geology of Lyon and Sioux counties, Wilde 
6140. 
