CONTENTS. 
Illinois - 
Portland-cement materials 
Trenton limestone 
Mississippian ( " Lower Carboniferous " ) limestones 
Pennsylvania!! (" Coal Measures " ) limestones 
Portland-cement industry 
Page. 
.... 132 
.... 132 
.... 132 
.... 133 
134 
135 
.... 137 
Bibliography 137 
Indiana 
Portland-cement materials 
Ordovician shales and limestones 
Cincinnati shales and limestones ■ 
Mississippian ("Lower Carboniferous") limestones and shales .. 
Kaskaskia or Huron group 
Mitchell formation 
Bedford oolitic limestone 
Harrodsburg limestone 
Knobstone group 
137 
137 
137 
138 
138 
138 
138 
139 
139 
Composition 
Limestones of the Pennsylvanian series ( Coal Measures) 1*M 
Fresh-water marls of Quaternary age 
Portland-cement industry ^ 
Bibliography ^ 
Indian Territory, by J. A. Taff 
Cambrian, Ordovician, and Silurian limestones * 
Arbuckle limestone ' 
Viola formation 
Sylvan shale 
Hunton limestone - 
14 
Carboniferous limestones 
Cretaceous limestones - 
Iowa, by H. Foster Bain - v 
Calcareous marls 
Chalk deposits 
Limestones 
Ordovician limestones 
Devonian limestones 
Wapsipinnicon formation 
Cedar Valley limestone 
Lime Creek shales 
Carboniferous limestones 
Kinderhook limestone 
Osage formation 
St. Louis limestone ' 
Des Moines formation 
" Missourian" formation 
Economic conditions 
Available materials 
Fuel 
Transportation 
Kansas 
Portland-cement materials 
Mississippian ("Lower Carboniferous") limestones 
Pennsylvanian ( ' 'Coal Measures ' ' ) limestones 
