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INDEX
575
Fourth report on highways of Maryland,
281.
Franklin coal, 140.
Frederick County, area of, 33.
county town of, S3.
election districts of, 492.
history of formation of, 490.
population of, 33.
road work in, 348.
Frederick Valley, soils of, 218.
Finch, John, 44.
Frostburg formation, 141.
Frosts, 226.
Howard County, area of, 33.
county town of, 33.
election districts of, 510.
history of formation of, 509.
population of, 33.
road work in, 289, 352.
Hydrography of Maryland, 238.
I
Igneous rocks, 113, 122, 142.
Infusorial earth, 203.
Iron ores, 200.
Iron pyrites, 207.
Gabbro, 114.
Garrett County, area of, 33.
county town of, 33.
election districts of, 502.
history of formation of, 499.
population of, 33.
Genesee member, 136.
Geological formations in Maryland, table
of, 97.
Geological surveys of Maryland, history
of, 45.
Geology of Maryland, 93.
Gilmor, Robt, Jr., 43.
Gneisses, 172, 176.
Gold, 202.
Government of Maryland, 38.
Grades and grading, 380.
Granites, 115, 144, 172, 173.
Graphite, 208.
Gravel roads, 383.
Greenbrier formation, 138.
Guilford granite, 175.
H
Hagerstown Valley, soils of, 219.
Hall, James, 47.
Hamilton member, 135.
Hampshire formation, 136.
Harford County, area of, 33.
county town of, 33.
election districts of, 508.
history of formation of, 506.
population of, 33.
road work in, 288, 348.
Harpers formation, 127.
Harrisburg Peneplain, 77, 88.
Hayden, H. H., 43.
Helderberg formation, 133.
Higgins, James, 47.
History of Maryland, 34.
History of studies of Maryland's physir
cal features, 40.
Homewood sandstone, 139.
Jennlngs formation, 135.
Johns Hopkins University, 48.
Johnson, A. N., 281, 323.
Jollytown coal, 142.
Jollytown limestone, 142.
Junlata formation, 130.
Jurassic period, 146.
characteristic fossils of, 255.
K
Kaolin, 197.
Keith, A., 51, 118.
Kelvin, Lord, 94.
Kent County, area of, 33.
county town of, 33.
election districts of, 515.
history of formation of, 511.
population of, 33.
Kittanning sandstone, 139.
Knox limestone, 129, 130.
Laboratory work of the Highway Divi-
sion, 314, 368.
Lafayette formation, 97, 188.
Lafayette terrace, 59.
Lead, 207.
Lewistown formation, 132, 133.
Lime products, 198.
Limestones discussed, 177, 182.
Little Clarksburg coal, 140.
Little Pittsburg coal, 140.
Location of Maryland, 29.
Loudoun formation, 126.
Louisiana Purchase Exposition, 270.
awards at, 275.
exhibits at, 270.
Lower Cambridge limestone, 140.
Lower Connoquenessing sandstone, 139.
Lower Cretaceous, 149.
Lower Devonian, 133.
Lower Freeport coal, 139.
Lower Freeport sandstone, 139.
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