WRITINGS OF F. B. MEEK. 75 



Page. 



Second magnesian limestone 118 



Second sandstone Vil 



Third magnesian limestone 123 



Third sandstone 127 



Fourth magnesian limestone 127 



Economical geology 128 



Soil, clays for the mannfacture of bricks 128 



Building stones 128 



Koad material, limestone for quicklime, sand 129 



Iron ore 130 



Lead 131 



Coal 132 



Sulphate of barji:a 133 



chaptee vm. 



Morgan County 135 



Springs 136 



Streams 137 



Timber 138 



Geological structure 138 



Quaternary system. — Alluvium 139 



Carboniferous rocks. — Coal measures 140 



Encrinital limestone 140 



Chouteau limestone 141 



Silurian s j'stom 141 



First magnesian limestone 141 



Saccharoidal sandstone 142 



Second magnesian limestone 143 



Second sandstone 144 



Third magnesian limestone 145 



Third sandstone 147 



Fourth magnesian limestone 148 



Economical geology 149 



Soils 149 



Coal 149 



Lead 152 



Iron ore 155 



Heavy spar 156 



Building materiel 156 



Chapter IX. 



Saline County 157 



Streams 158 



Timber 159 



Geological structure 160 



Quaternary deposits 161 



Alluvium of the Missouri Flats 161 



Bluffer Loess Deposit 161 



Drift 162 



Carboniferous rocks. — Coal measures 163 



Ferruginous sandstone 172 



Ai'chimedes limestone 172 



Encrinital limestone 173 



Chouteau limestone ;.. 174 



Cooper marble 176 



Semi-crystalline limestone 176 



Silurian system 178 



Trenton limestone? 178 



Saccharoidal sandstone 178 



Economical geology 179 



Soil 179 



Coal 180 



Building stone 180 



Limestones for making lime, sand, clays for bricks, &c 181 



Springs 181 



