A

Abbott, Horace, 150, 174.

Abbott Iron Company, 174.

Acts of Legislature regarding iron indus-
try, 128, 129, 132, 133, 143.

Advice given, 85, 86.

Adler, S. J., 153

Ahern, John, 158.

Albaugh, George, 310.

Alexander, J. H., cited, 134, 146, 159,
161, 176, 178, 229, 230, 237,
325.

Allan ore bank, 287.

Allegany County, iron ore in, 182-184,

291-308.

iron works in, 139-142, 173.

road work in, 39, 45, 50, 53, 56, 60,
65, 66, 74, 99, 111, 112, 116.

Allegheny iron ores, 237-238, 243.
Ambush ore bank, 315.

Amount of ore reserves, 199, 212, 227,
300-301, 324.

Anderson ore bank, 281.

Annapolis Junction, iron ore near, 283.
Anne Arundel County, iron ore in, 278-
285.

iron works in, 169-171.

road work in, 39, 50, 53, 56, 60, 65,
74, 100, 111, 116.

Antietam furnace, 134, 144-145, 177.
Appletown ore bank, 192.

Appropriations, 33.

Arbutus, iron ore near, 273.

Arundel formation, 253-254.

Arundel ores, 255-291.

mining of, 258-259.

origin of, 257.

prices of, 258, 259, 268.

royalty on, 265, 268.

Aschan, O. cited, 250.

Ashland furnace, 135, 155, 177, 215, 216,
219, 220, 221, 226, 230.

Ashland Iron Company, 155.
Ashland ore bank, 289.

Assistance to counties and towns, 37-39.

Assistance to iron industry, 128.

Avalon Iron Works, 169, 173.

Avondale, 149.

Avondale ore bank, 216.

Ayres ore bank, 319.

Bachman Mills, iron ore near, 212-213.
Bachman Valley, iron ore in, 208-214,
217-218, 325.

Baldwin, forge near, 175.

Baltimore City, iron works in, 159-160.
Baltimore County, iron ore in, 218-225,
262-275, 319, 320-321.

iron works in, 150-158, 173-174.
limonites of, 218-225.

road work in, 39, 45, 48, 50, 53, 56-
57, 60, 64, 65, 66-67, 74, 100,
111, 112, 116-117.

Baltimore-Washington road, 35, 46-49,

52, 64, 91, 108-109.

Barker, J., 169.

Barren Creek, iron ore on, 230.
Barton, iron ore near, 240.

Barton ore bank, 180.

Baxter, William, 164, 165.

Bauer, L. A., 329-337.

Beall, Samuel, Jr., 144.

Bear Creek, iron ore on, 237, 240-241.
242, 325.

Beasman, J. E., 309, 310.

Belt deposit, 316.

Beltsville, iron ore near, 289.
Bennett ore bank, 282.
Benser ore bank, 261.
Benson, O. R., 278.
Benson ore bank, 279.
Bentz, Samuel, 144.
Berkley ore bank, 285.
Berthier, M., cited, 161.

Bethke ore bank, 266.

Big Bennetts Creek, 149.

Big Elk Creek, iron works on, 175.
Binders, study of, 38.

Birkinbine, John, cited, 314.

Bishop cited, 143, 148.

Bishop, E. Tracy, cited, 144.
Bishop ore bank, 265.

Bixler, iron ore near, 214.

Blackband ore, 234-236.
Blackford, Benjamin, 146.

Blooms, price of, 130, 163, 164.

Bloomsburg forge, 149.

Blowhorn ore bank, 272.

Blue Mountain Iron and Steel Company,

148, 201.

Bluemount, iron ore near, 321.

339

Blue Ridge furnace, 134.

Blythedale, iron ore at, 260.

Bog iron ores, 227-231.

origin of, 227-229.

Bolles cited, 161.

Boonsboro, 144.

iron ore near, 192-193, 202.

Borden shaft, 141.

Bosley, iron ore near, 219.

Bosley ore bank, 219.

Bowers, George, 279.

Bowery furnace, 141, 177, 242, 246.
Bowie, iron ore near, 290.
Brady, Clinton ore at, 295.
Branchville, iron ore near, 290-291.
Brauer, Chas. A., iron ore of, 281.

Brian ore bank, 271.

Bridewell, iron ore near, 276.

Brien, John McP., 145.

Brooke, Horace L., 159.

Brooks & Co., 215.

Brooks ore bank, 276.

Brookville, manganese near, 327.

Brown, George, 274.

Brown, Howard, 280.

Brown, Jacob, cited, 300.

Brown, Wm. M., 145, 338.

Brown ore, 256.

Brown ore bank, 266, 277, 283.
Buck Hill, iron ore on, 247.

Buck ore bank, 291.

Burroughs, George R., 153, 171, 288.
Burroughs, John, 169.

Burchard, E. F.. cited, 306-307.

Bush Creek forge, 146-147.

Bush furnace, 161.

Bush River, 161.

Bush River iron works, 161.

Bye, E. M., 160.

Butlerville, iron ore near, 222.

C

California ore bank, 286.
Calvert, Leonard, 146.

Calvert County, road work in, 50, 65, 74,
100, 111.

Cambro-Ordovician limonites, 188-206.

origin of, 190-191.

stratigraphy of, 189-190.

Canton forge, 174.

Canton Rolling Mill, 174.

Carbonate iron, 124.

Carbonate ores, 232-291.

Carbonate ores of Coal Measures. 233-253.

of Coastal Plain, 253-291.

origin of, 248-253.

production of, 232-233.

Caroline County, iron ores in, 229.

iron works in, 176.

road work in. 50, 53, 57, 61, 65, 74,

101, 111, 112, 117.

Carroll, Charles, 153, 155.

Carroll County, iron ore in, 207-216, 317-

318.

iron works in, 149-150.

road work in. 45, 50, 54. 57. 61, 65,
67. 74, 101, 111, 112, 117.

Carroll mine, 310.

Cass Run, iron ore on, 264.

Castle, A. B.. ore bank of. 204.

Catoctin furnace. 132, 134, 136, 146-148,
177, 325.

description of. 194-201.

history of, 146-148, 201-202.

Catoctin ore, character of, 195.

geological position of, 196-199.
Catoctin Iron Company, 147, 201.

Catoctin Mountain, magnetites on, 312-

315.

Catoctin Mountain Iron Company, 147.
Caves ore bank, 227.

Cecil County, iron ore in, 259-260.

iron works in. 162-168, 174-176.

road work in, 50, 53, 57, 61, 65, 67,

74, 101, 111, 112, 117.

Cecilia furnace, 158.

Cedar Point furnace, 135, 159, 177, 279.
Chaney, Samuel, 284.

Chapline. Joseph, 144.

Charles County, road work in. 50, 54, 61,
65, 75, 102, 111, 112, 117.

Charles ore bank, 185.

Cherry Hill, iron ore near, 320.

Chesapeake furnace, 135, 158, 177, 260.
Chestnut Hill Mining Company, 208.

Chew ore bank, 225.

Churchman, John. 175.

Clarion iron ore, 237.

Clark, William B., 145.

Clark, William Bullock, 15, 81-96.

Clark and Bibbins cited, 253.

Clay ore bank, 317, 326.

Clay iron stone, 236-237.

Clays, analyses of, 196.

Clayton, iron ore near, 261.

Clear Spring, iron ore near, 191, 202.
Clifton, iron ore near, 270-271.

Clinton formation, 292-295.

character of, 293.

distribution of, 292-293.
sections of, 294-295, 297.
Clinton iron ore, 291-308.
Clinton ores, 295.

amount of. 300-301.
analyses of, 296.

Ebbvale, iron ore near, 209.
Ebbvale Mining Company, 211.
Eccleston, road near, 39.
Edgewood, iron ore near, 260.
Ehrenburg, Ch. G., cited, 250.

Elba furnace, 135, 149-150, 177, 309, 311.
Elder, iron ore near, 237, 243.
Eldersburg, iron ore near, 310.

Elk Forge Company, 175.

Elkridge, iron ore near, 279.

Elkridge furnace, 135, 168-169, 177, 280.
Elk Rolling Mill, 174.

Elkton, iron works near, 175.

Ellicott, Andrew, Jr., 168.

Ellicott, Evan T. & Co., 159, 173, 283.

Ellicott, H. W., 159.

Ellicott ore bank, 270.

Emmitsburg, 132, 148.

Emory, D. H., iron ore of, 273.

Emory Grove, iron ore near, 220.

Ender ore bank, 266.

Engineering costs, 98, 108.
England, John, 163.

Ensor ore bank, 216, 219.

Evans, John, 174.

Evitts Mountain, 292.

Clinton ore at, 295.

Excelsior Brick and Pottery Company,

273.

F

Fairall, Thomas, 169.

Fairbanks, William, iron ore of, 280.

Fairview Mountain, iron ore, 181, 185.

Falkner ore bank, 243.

Feagaville, iron ore near, 203.

Fearer, iron ore near, 237, 243.

Federalsburg, iron ore near, 229, 230.

Federalsburg Bloomery, 176.

Fielderia furnace, 148, 177.

Financial statement, 87, 92, 96, 98.
Finksburg, iron ore near, 308, 309, 311.
Fisher, James, 282.

Fitzhugh, Peregrine, 147.

Flattermash ore bank, 261.

Foerster, A. F., cited, 302-303.
Forges, description of, 130.

Forsythe deposit, 318.

Francis Real Estate Company, 275.
Franklinville, 150.

Frederick, 148.

Frederick County, iron ore in, 193-201,
203-206, 216-218, 313-317.

iron works in, 146-149.

road work in, 39, 50, 57, 65, 68, 75,
102, 111, 117.

Frederick Junction, iron ore near, 205-

206.

Free testing, 33, 39.

Frey's forge, 176.

Friel ore bank, 288.

Friend. Ed., iron ore of, 242.
Friend, Taylor, iron ore of, 243.

Friendsville, iron ore near, 237, 240-241,
242, 243.

Friendsville furnace, 133, 139, 177.
Frostburg, iron ore near, 241, 245.
Frost Company, iron ore of, 245.
Furnace Branch, 148.

Furnace Creek, 169.

Furnaces in Maryland, 134-135, 177.

Furstenburg, Levi, 153, 265.

G

Gosweiler ore bank, 285.

Grade crossings, 35.
"Gouging," 259.

Grasty, J. S., cited, 327.

Great Falls Iron Company, 168, 277, 280.
Green, Richard, 155, 161.

Green. Robt., 260.
Green, William, 161.

Green ore bank, 289.

Green Spring, iron ore near, 184-188.

Green Spring furnace, 134, 143, 177, 184.
Green Spring ore bank, 185.

Grim ore bank, 217.

Grove Bros., ore bank of, 209-210.
Guepl, Joseph, iron ore of, 184.

Gunpowder forge, 151.

Gunpowder furnace, 135, 150, 177.
Gwynns Falls, 132.

Gwynns Falls furnace, 155-156, 177.

H

Haines, J. B. & Co., 143.
Haker ore bank, 289.

Halethorpe, iron ore near, 274, 275.
Hampton furnace, 132, 148, 152, 177.
Hancock, iron ore near, 180.

Hansel, Philip, iron ore of, 248.
Hanway ore bank, 262.

Hanover, iron ore near, 275-282.

Gaither estate, iron ore on, 279.

Gantt, Fielder, 148.

Garrett County, iron works in, 139.

road work in, 50, 65, 68, 75, 103,
111.

Garey ore bank, 278.

Gay Shore, iron ore on, 268.

Gee, Osgood, 154.

Geeting ore bank, 202-203.

Geiger, Christian, 149, 155.

Geikie, James, cited, 252.

Geist ore bank, 220.

George's Creek, iron ore on, 241.

George's Creek Coal and Iron Company,

141, 241.

Gephart, George, iron ore of, 300.

German ore bank, 279.

Gerst ore bank, 263.

Gibbons, William, iron ore of, 286.
Giltz, Adam, 279.

Glauconite beds, alteration of, 304-305.
Glencoe, iron ore near, 220.

Glenn, John, Jr., 170.

Glenn, Wilkens, 170.

Glenn, William W., 170.

Golden Ring, iron ore near, 268.

Goldwine ore bank, 282.

Goodwin, William, 153.

Gorsuch Point, 132, 163, 269.

Harmon, G. R., iron ore of, 280.

Harmon ore bank, 282.

Harford County, iron ores in, 225-227,
260-262, 319-320.

iron works in, 160-162.

road work in, 45, 50, 54, 58, 61, 65,
68, 75, 103, 111, 112, 117.

Harford furnace, 135, 161, 177, 260, 261.
Harpers Ferry, W. Va., iron ore near,

193.

Hartnagel, C. A., cited, 306.

Haslup ore bank, 276.

Havre de Grace furnace, 135, 264.

Havre Iron Company, 160.

Hedgman ore bank, 290.

Helderberg limonites, 180-182.
Hematite, 124.

composition of, 123.

of Allegany County, 291-308.
of Carroll County, 308-311.
specular, 308-311.
Henderson, Richard, 144.
Hengemihle ore bank, 267.
Herman ore bank, 223.
Herring Run, 154.

Hess, iron ore near, 226.

Hinks, Henry, 272.

Hobbs, Geo. W., 276.

Hobbs ore bank, 276-277.

Hofmeister ore bank, 265.

Hollins ore bank, 279.

Homer, Francis, iron ore of, 224-225.

Hone ore, 255.

Honeygo Run, 151.

Hood, Robert, 281.

Hood ore bank, 317-318.

Hoods Mills, iron ore near, 318-319.

Hooff ore bank, 287.

Hoover, Oliver, ore bank of, 209.
Hope ore bank, 225.

Horine, John, 144.

Horseshoe Bend, forge near, 176.
Howard, Robert, 151, 153, 263, 264.
Howard County, iron ore in, 317-318.
iron works in, 168-169.

road work in, 45, 48, 50, 54, 58, 61,
64, 65, 68, 75, 103, 111, 112.
Huffer, Albert, iron ore of, 202.
Hughes, Daniel, 143.

Hughes, David, 144.

Hughes, Samuel, 143, 144, 166, 175.
Hull, C. J., iron ore of, 273.
Hunter ore bank, 215.

Highway Division, transfer of, 81.

work of, 81-96.

Highway investigations, 83-84.

Impurities in iron ores, 125.
Indian Springs, ore near, 181, 184.
International Road Congress, 37.
Iron, production of, 130, 134, 136.
Iron carbonate, composition of, 123.
Iron exports, 128, 129, 131.
Iron furnaces, earliest, 129.
Iron industry, assistance to, 128.
Iron industry, cause of decline, 136.
Iron industry in Maryland, history of,
128-138.

Iron, manufacture of, forbidden, 132.
Iron ore, analyses of, 181, 182, 183, 187,
191, 195, 201, 203, 205, 207,
208, 210, 211, 213, 214, 215,
217, 221, 223, 224, 226, 227,
231, 236, 243, 244, 256, 264,
267, 270, 274, 277, 278, 282,
296, 298, 309, 314, 316, 319,
327.

origin of, 222.

production of, 137, 138.

of Maryland, 178-324.

Iron works, earliest, 129.

Iron works in Maryland, 139, 173-176.

Jackson, C. T., cited, 321.
Jackson, William, 172.

Jacksonville, iron ore near, 219.

Jacques, Mr., 143.

Jarrettsville, iron ore near, 162, 225.

Jenkins, Hugh, 158.

Jenkins ore bank, 267.

Jessups, iron ore near, 282, 283.

Johnson, Baker, 146.

Johnson, Geo., cited, 130.

Johnson, James, 143, 146, 149, 201.

Johnson, Roger, 146, 149.

Johnson, Thomas, 143, 146, 148.

Johnson Field, iron ore in, 245.

Johnson furnace, 148-149, 177, 204.

Jones ore bank, 290.

Joppa, iron ore near, 261.

Joppa Iron Works, 151.

Joppa ore banks, 262.

K

Kahler ore bank, 265.

Kaufman ore bank, 271.

Keedysville, iron ore near, 202-203.

Keeler Glade, iron ore in, 243.

Keeny ore bank, 207-208.

Kennedy ore bank, 273.

Kent County, road work in, 50, 65, 75,

103, 111.

Kern ore bank, 268.

Keyser, William, cited, 150, 159, 178.

Keyser Ridge, 325.

Kimball, James P.. cited, 302, 303.

King, Thomas, 276.

King ore bank, 283.

Kingsbury furnace, 154, 164, 177.

Kirwan ore bank, 285.

Kline's ore bank, 268-269.

Knight ore bank, 183.
Koester, Frank, 266.
Kohler ore bank, 192.

Koontz, iron ore near, 241, 247.
Kraft ore bank, 274.
Krug, iron ore near, 238.
Kunkle, Jacob M., 147.

Kunkle, John, 146, 147, 201, 315.

Lafey ore bank, 281.

L

La Grange furnace, 135, 161-162, 177, 226,

320.

La Grange Iron Works, 161.

Lancashire furnace, 153, 164, 177.

Landsdowne, iron ore near, 272, 273.
Lane ore bank, 192.