• Abbot, Henry L., Pacific R.R., 1853
• Abbot, Joel, Perry, 1852
• Abbott, Charles C., NJGS, 1835
• Abert, James W., Frémont, 1845; Abert, 1846; Emory, 1846
• Abert, John J., Featherstonhaugh, 1834
• Abert's Examination of New Mexico: 1846, Abert, 1846
• Academy of Natural Sciences, Foreword
• Adams, Charles B., Vt. GS, 1844; Marcy, 1852
• Agassiz, Louis, Introduction, SCGS, 1824; Me.GS, 1836; Pa. GS, 1836; Miss. GS, 1850; Miss. GS, 1850; Pacific R.R., 1853
• Agate, Alfred, US Expl. Exp., 1838
• Aikin, William E.A., Va.GS, 1835; NHSNY, 1836
• Alabama Geological Surveys: 1848, Ala. GS, 1848
• Alexander, John H., Md. GS, 1833; Pacific R.R., 1853
• Allen, James, Schoolcraft & Allen, 1832
• Allen, Lewis F., NHSNY, 1836
• Amazon Valley, Herndon & Gibbon, 1851
• American Association for the Advancement of Science, Introduction, NHSNY, 1836; 30
• American Association of Geologists and Naturalists, Introduction, Mass.GS, 1824; NHSNY, 1836
• Anderson, Henry J., Lynch, 1847
• Antarctica, US Expl. Exp., 1838
• Antisell, Thomas, Pacific R.R., 1853
• Arctic, Kane, 1852; Hall, 1859; Hayes, 1860
• Arkansas Geological Survey: 1856, Ark. GS, 1856
• Ashburner, William, Cal. GS, 1853
• Ashmead, Samuel, NJGS, 1835; Pacific R.R., 1853; Hayes, 1860
• Audubon, John J., Lewis & Clark, 1804

   

• Bache, Alexander D., Pa. GS, 1836
• Bailey, Jacob W., US Expl. Exp., 1838; Abert, 1846; Pacific R.R., 1853
• Bailey, Loring W., Herndon & Gibbon, 1851
• Baird, Spencer F., NJGS, 1835; US-Mexican Bdy., 1848; Gilliss, 1849; Stansbury, 1849; Miss. GS, 1850; Sitgreaves, 1851; Marcy, 1852; Cal. GS, 1853; Pacific R.R., 1853; Rodgers & Ringgold, 1853; Warren, 1855; Bryan, 1856; Warren, 1856; Ives, 1857; NW Bdy., 1857; Simpson, 1858
• Baldwin, William, Introduction, Long, 1819
• Barriss, Willis H., Ill. GS, 1851
• Bartlett, John R., US-Mexican Bdy., 1848
• Barton Herbarium, Lewis & Clark, 1804
• Beck, Lewis C., NHSNY, 1836; 30
• Beckwith, E.G., Pacific R.R., 1853
• Berkeley, Miles J., US Expl. Exp., 1838
• Berlandier, Jean L., Introduction, US-Mexican Bdy., 1848; Pacific R.R., 1853
• Beyrich, Heinrich K., Schoolcraft & Allen, 1832
• Biddle, Nicholas, Lewis & Clark, 1804
• Bigelow, John M., US-Mexican Bdy., 1848; Pacific R.R., 1853
• Big Wichita River, Marcy, 1854
• Binney, William G., Pacific R.R., 1853; Warren, 1855; Warren, 1856
• Blake, William P., Pacific R.R., 1853; Marcy, 1854; Warren, 1855
• Booth, James C., Pa. GS, 1836; Pacific R.R., 1853
• Boott, Francis, Perry, 1853
• Boyd, George W., Jr., NHSNY, 1836
• Boy�, Martin H., Pa. GS, 1836
• Brackenridge, H.M., Long, 1819
• Brackenridge, William D., US Expl. Exp., 1838; Gilliss, 1849
• Bradley, Frank H., Ill. GS, 1851
• Brevoort, James C., Perry, 1853
• Brewer, William H., Cal. GS, 1853
• Bridger's Pass, Bryan, 1856
• Broadhead, Garland C., Ill. GS, 1851; Mo. GS, 1853
• Brooke, John M., Rodgers & Ringgold, 1853
• Bryan, Francis T., Bryan, 1856
• Bryan's Expedition from Fort Riley to Bridger's Pass: 1856, Bryan, 1856
• Buckley, Samuel B., Tex. GS, 1858

   

• California, Frémont, 1843; Frémont, 1845
• California Geological Surveys: 1853, Cal. GS, 1853
• Campbell, Albert H., Pacific R.R., 1853
• Campbell, Archibald, NW Bdy., 1857
• Campbell, Robert B., US-Mexican Bdy., 1848
• Carleton, James, H., Pacific R.R., 1853
• Carpenter, Philip P., Cal. GS, 1853
• Carr, Ezra S., Wisc. GS, 1853
• Carter, Robert, Page, 1853
• Cass, Lewis, Cass, 1820
• Cass Expedition to the Great Lakes: 1820, Cass, 1820
• Cassin, John, US Expl. Exp., 1838; Lynch, 1847; Gilliss, 1849; Perry, 1853; Pacific R.R., 1853; Page,1853; Michler, 1857
• Chadbourne, Paul A., Me.GS, 1836
• Channing, William F., NHGS, 1839; Jackson, 1847
• Chile, Gilliss, 1849
• Clark, William, Lewis & Clark, 1804
• Cleaveland, Parker, NCGS, 1823
• Colorado, Macomb, 1859
• Colorado River, Sitgreaves, 1851; Ives, 1857
• Connecticut Geological Survey: 1835, Conn. GS, 1835
• Conrad, Timothy A., NHSNY, 1836; US-Mexican Bdy., 1848; Gilliss, 1849; Miss. GS, 1850; Pacific R.R., 1853
• Cook, George H., NJGS, 1835
• Cooley, Dennis, Jackson, 1847
• Cooper, James G., Cal. GS, 1853; Pacific R.R., 1853
• Cope, Edward D., Ill. GS, 1851; Warren, 1855
• Corps of Topographical Engineers, Introduction
• Correa da Serra, Joseph F., Long, 1819
• Coteau des Prairies, Featherstonhaugh, 1835
• Couch, Darius N., US-Mexican Bdy., 1848; Pacific R.R., 1853
• Coues, Elliott, NW Bdy., 1857; Raynolds, 1859
• Couthouy, Joseph P., US Expl. Exp., 1838
• Cox, Edward T., Ill. GS, 1851; Ky. GS, 1854; Ark. GS, 1856
• Crawe, Ithamar, Introduction
• Curtis, Moses A., NCGS, 1823; US Expl. Exp., 1838

   

• Dacotah, Warren, 1856
• Dana, James D., Introduction, Conn. GS, 1835; US Expl. Exp., 1838
• Daniels, Edward, Wisc. GS, 1853
• Darlington, William, Long, 1819
• Dawson, John W., Me.GS, 1836
• Dead Sea, Lynch, 1847
• DeKay, James E., NHSNY, 1836
• Delaware Geological Survey: 1837, Del. GS, 1836
• Desor, Pierre J. E., Pa. GS, 1836; Jackson, 1847; Foster & Whitney, 1849
• Dewey, Chester, NHSNY, 1836; ZBS Mass., 1837; US-Mexican Bdy., 1848; Warren, 1855
• Dieffenderfer, M.(?), Pacific R.R., 1853
• Dix, John A., NHSNY, 1836
• Dodge, Henry, Schoolcraft & Allen, 1832
• Douglass, David B., Cass, 1820
• Downey, Timothy C., Ky. GS, 1854
• Drayton, Joseph, US Expl. Exp., 1838
• Ducatel, Julius T., Md. GS, 1833
• Dunbar's Expedition to Louisiana: 1804, Dunbar, 1804
• Dunbar, William, Dunbar, 1804
• Duncan, Johnson K., Pacific R.R., 1853
• Durand, Elias, Kane, 1852; Pacific R.R., 1853; Hayes, 1860

   

• Eaton, Amos, Long, 1819; Cass, 1820; NCGS, 1823; SCGS, 1824; NHSNY; Pa. GS, 1836
• Eaton, Daniel C., Vt. GS, 1844; US-Mexican Bdy., 1848; Perry, 1853; Michler, 1857
• Edwards, Benjamin, Long, 1819
• Egloffstein, Frederick W. von, Ives, 1857
• Eights, James, NHSNY, 1836
• Emerson, Benjamin K., Hall, 1859
• Emerson, George B., ZBS Mass., 1837
• Emmons, Ebenezer, NCGS, 1823; Mass.GS, 1824; NHSNY, 1836; ZBS Mass., 1837
• Emory, William H., Emory, 1846; US-Mexican Bdy., 1848
• Emory's Reconnaissance from Fort Leavenworth to San Diego: 1846, Emory, 1846
• Engle, Frederick, Isthmus of Chiriqui, 1860
• Englemann, George, Emory, 1846; Wislizenus, 1846; US-Mexican Bdy., 1848; Pacific R.R., 1853; Warren, 1855; Simpson, 1858
• Englemann, Henry, Ill. GS, 1851; Mo. GS, 1853; Bryan, 1856; Simpson, 1858
• Evans, John, Owen, 1848; Ore. & Wash., 1851; Pacific R.R., 1853; Isthmus of Chiriqui, 1860
• Ewbank, Thomas, Gilliss, 1849

   

• Featherstonhaugh, George W., Featherstonhaugh, 1834; Featherstonhaugh, 1835
• Featherstonhaugh Reconnaissance of the Coteau des Prairies, Featherstonhaugh, 1835
• Featherstonhaugh Survey of the Elevated Country between the Missouri and the Red Rivers: 1834, Featherstonhaugh, 1834
• Fendler, Augustus, Abert, 1846; US-Mexican Bdy., 1848
• Fitch, Asa, NHSNY, 1836
• Forshey, Caleb G., Tex. GS, 1858
• Fort Leavenworth, Emory, 1846
• Fort Riley, Bryan, 1856
• Fort Smith, Simpson, 1849
• Foster, John W., Ohio GS, 1837; Jackson, 1847; Foster & Whitney, 1849
• Foster and Whitney's U.S. Survey of the Lake Superior Land District: 1849, Foster & Whitney, 1849
• Frazer, John F., Pa. GS, 1836
• Fr�mont's Expedition between the Missouri River and the Rocky Mountains: 1842, Frémont, 1842
• Fr�mont's Expedition to Oregon and California: 1843, Frémont, 1843
• Fr�mont's Explorations in Upper California: 1845, Frémont, 1845
• Fr�mont, John C., Nicollet, 1836; Frémont, 1842; Frémont, 1843; Frémont, 1845

   

• Gabb, William M., Cal. GS, 1853; Isthmus of Chiriqui, 1860
• Gallatin, Albert, Cass, 1820
• Gale, Leonard D., NHSNY, 1836
• Geyer, Charles A., Nicollet, 1836
• Gibbes, Lewis R., SCGS, 1824
• Gibbon, Lardner, Herndon & Gibbon, 1851
• Gibbs, George, Pacific R.R., 1853; NW Bdy., 1857
• Gibbs, Oliver W., Jackson, 1847
• Gill, Theodore N., Cal. GS, 1853; Rodgers & Ringgold, 1853; Warren, 1855; Michler, 1857; NW Bdy., 1857; Simpson, 1858
• Gilliss, James M., Gilliss, 1849
• Gilliss's U.S. Naval Astronomical Expedition: 1849, Gilliss, 1849
• Girard, Charles F., US Expl. Exp., 1838; US-Mexican Bdy., 1848; Gilliss, 1849; Stansbury, 1849; Sitgreaves, 1851; Marcy, 1852; Pacific R.R., 1853; Page, 1853
• Goodale, George L., Me.GS, 1836
• Gould, A. A., Mass.GS, 1824; NHSNY, 1836; ZBS Mass., 1837; US Expl. Exp., 1838; Gilliss, 1849; Pacific R.R., 1853; Rodgers & Ringgold, 1853
• Graham, James D., Long, 1819; US-Mexican Bdy., 1848
• Gray, Asa, Me.GS, 1836; US Expl. Exp., 1838; Gilliss, 1849; Perry, 1853; Cal. GS, 1853; Pacific R.R., 1853; Rodgers & Ringgold, 1853; Ives, 1857
• Great Lakes, Cass, 1820
• Gregg, Josiah, Wislizenus, 1846
• Griffith, Robert E., Lynch, 1847
• Gunnison, J.W., Stansbury, 1849; Pacific R.R., 1853

   

• Haldeman, Samuel S., Long, 1819; Mass.GS, 1824; NHSNY, 1836; Pa. GS, 1836; Stansbury, 1849
• Hale, Horatio, Introduction, US Expl. Exp., 1838
• Hall, Charles F., Hall, 1859
• Hall, James, Introduction, NJGS, 1835; NHSNY, 1836; Frémont, 1843; US-Mexican Bdy., 1848; Foster & Whitney, 1849; Stansbury, 1849; Pacific R.R., 1853; Wisc. GS, 1853; Iowa GS, 1855; Minn. GS, 1859
• Hall, Samuel R., Vt. GS, 1844
• Hallowell, Edward, Sitgreaves, 1851; Pacific R.R., 1853; 110
• Hall's Expeditions to the Arctic: 1860, Hall, 1859
• Hammond, William A., Pacific R.R., 1853
• Harris, Joseph S., NW Bdy., 1857
• Harris, Thaddeus W., Mass.GS, 1824; ZBS Mass., 1837
• Harper, Lewis, Miss. GS, 1850
• Harvey, William H., US Expl. Exp., 1838; Perry, 1853; Michler, 1857
• Hayden, Ferdinand V., NCGS, 1823 Long, 1819; Mullan, 1858; Raynolds, 1859
• Hayes, Isaac I., Kane, 1852; Hayes, 1860
• Hayes's Arctic Expeditions: 1860, Hayes, 1860
• Head, John F., Pacific R.R., 1853
• Henderson, Andrew A., Pa. GS, 1836
• Henry, Joseph, NJGS, 1835
• Hentz, Nicholas M., Mass.GS, 1824
• Herman, Adolphus, Introduction
• Herndon, William L., Herndon & Gibbon, 1851
• Herndon and Gibbon's Explorations of the Valley of the Amazon: 1851, Herndon & Gibbon, 1851
• Hildreth, Samuel P., Ohio GS, 1837
• Hilgard, Eugene W., Miss. GS, 1850
• Historical Society of Pennsylvania, Foreword
• Hitchcock, Charles H., Me.GS, 1836; Vt. GS, 1844
• Hitchcock, Edward, Mass.GS, 1824; NHSNY, 1836; ZBS Mass., 1837; Vt. GS, 1844; Marcy, 1852
• Hodge, James T., Me.GS, 1836
• Holmes, Ezekiel, Me.GS, 1836
• Hopkins, Albert, NHSNY, 1836
• Horsford, Eben N., Introduction, NHSNY, 1836; Pacific R.R., 1853
• Houghton, Douglas, Introduction, Schoolcraft, 1831; Schoolcraft & Allen, 1832; Mich. GS, 1837
• Hubbard, Bela, Mich. GS, 1837; Jackson, 1847
• Humboldt, Alexander von, Schoolcraft & Allen, 1832
• Hungerford, Edward, Iowa GS, 1855
• Hunt, Thomas S., Vt. GS, 1844
• Hunter, George, Dunbar, 1804

   

• Illinois, Owen, 1839
• Indiana Geological Surveys: 1837, Ind. GS, 1837
• Iowa, Owen, 1839; Owen, 1848
• Iowa Geological Survey: 1855, Iowa GS, 1855
• Isthmus of Chiriqui Expedition: 1860, Isthmus of Chiriqui, 1860
• Isthmus of Darien, Michler, 1857
• Ives, J.C., Ives, 1857
• Ives's Expedition up the Colorado River: 185 Long, 1819; Ives, 1857

   

• Jackson, Charles T., Introduction, Me.GS, 1836; NHSNY, 1836; Jackson, 1847; Ore. & Wash., 1851
• Jackson, Robert M. S., Pa. GS, 1836
• Jackson's U.S. Survey of the Mineral Lands of Michigan: 1847, Jackson, 1847
• James, Edwin, Long, 1819
• James, Thomas P., Hayes, 1860
• Japan, Perry, 1853
• Jay, John C., Miss. GS, 1850
• Jeffers, William N., Page,1853; Hayes, 1860
• Jefferson, Thomas, Foreword, Introduction, Sibley, 1803; Lewis & Clark, 1804
• Jessup, Augustus E., Long, 1819
• Johnston, Abraham R., Emory, 1846
• Jones, George, Perry, 1852
• Jones, Thomas R., Pa. GS, 1836
• Joy, Charles A., Jackson, 1847
• Justice, George M., Kane, 1852

   

• Kane, Elisha K., Kane, 1852
• Kane's Expedition to the Arctic Regions: 1852, Kane, 1852
• Keating, William H., Long, 1823; Pa. GS, 1836
• Kennicott, Robert, US-Mexican Bdy., 1848
• Kentucky Geological Survey: 1854, Ky. GS, 1854
• Kern, Benjamin J., Introduction, Frémont, 1845
• Kern, Edward M., Introduction, Frémont, 1845; Simpson, 1849; Rodgers & Ringgold, 1853
• Kern, Richard H., Introduction, Frémont, 1845; Simpson, 1849; Sitgreaves, 1851; Pacific R.R., 1853
• King, Clarence, Cal. GS, 1853
• King, William S., Pacific R.R., 1853
• Kirtland, Jared P., Ohio GS, 1837
• Knieskem, Peter D., NJGS, 1835
• Kreutzfeld, Frederick, Introduction

   

• Lake Superior, Foster & Whitney, 1849
• Lambert Herbarium, Lewis & Clark, 1804
• Lambert, John, Pacific R.R., 1853; Bryan, 1856
• Lapham, Increase A., Ohio GS, 1837; Foster & Whitney, 1849; Wisc. GS, 1853
• La Plata River, Page,1853
• Lawrence, George N., Pacific R.R., 1853
• Lea, Isaac, Warren, 1855; Warren, 1856
• LeConte, John L., Mich. GS, 1837; Pacific R.R., 1853; NW Bdy., 1857
• Lee, William, Long, 1819
• Leidy, Joseph, Bibl. note, SCGS, 1824; Owen, 1848; Ore. & Wash., 1851; Cal. GS, 1853; Wisc. GS, 1853
• Lesley, J.P., Bibl. note, SCGS, 1824; Pa. GS, 1836; Ky. GS, 1854; Ark. GS, 1856
• Lesquereux, Charles Leo, Introduction, Pa. GS, 1836; Vt. GS, 1844; hIll. GS, 1851; Ore. & Wash., 1851; Ky. GS, 1854; Ark. GS, 1856
• Lewis, Meriwether, Foreword, Lewis & Clark, 1804
• Lewis and Clark Expedition, Foreword, Introduction, Lewis & Clark, 1804
• Library Company of Philadelphia, Foreword, Bibl. note
• Lieber, Oscar M., SCGS, 1824; Ala. GS, 1848; Miss. GS, 1850
• Lindheimer, Ferdinand, US-Mexican Bdy., 1848
• Linnaean Society of London, Long, 1819
• Litton, Abram, Owen, 1848; Ore. & Wash., 1851; Mo. GS, 1853
• Locke, John, Ohio GS, 1837; Jackson, 1847; Mo. GS, 1853
• Long, Stephen H., Long, 1819
• Long Expedition: to the Rocky Mountains: 1819, Long, 1819; to St. Peter's River, Long, 1823
• Louisiana, Sibley, 1803; Dunbar, 1804
• Lynch's Dead Sea Expedition: 1847, Lynch, 1847
• Lynch, William F., Lynch, 1847
• Lyell, Sir Charles, Introduction, Me.GS, 1836
• Lyon, Sidney S., Ky. GS, 1854

   

• McClellan, George B., Marcy, 1852
• McKay, James, Lewis & Clark, 1804
• Macomb, John N., Macomb, 1859
• Macomb's Expedition in New Mexico, Utah, and Colorado: 1859, Macomb, 1859
• Mallett, John W., Ala. GS, 1848
• Marcou, Jules, Pacific R.R., 1853
• Marcy, Randolph B., Marcy, 1852; Marcy, 1854
• Marcy, William L., Va.GS, 1835; NHSNY, 1836
• Marcy's Exploration of the Big Wichita: 1854, Marcy, 1854
• Marcy's Exploration of the Red River: 1852, Marcy, 1852
• Maryland Geological Surveys: 1830, Md. GS, 1833
• Massachusetts, ZBS Mass., 1837
• Massachusetts Geological Survey: 1830, Mass.GS, 1824
• Mather, William W., Featherstonhaugh, 1835; NHSNY, 1836; Ohio GS, 1837; Jackson, 1847
• Maury, Matthew F., Herndon & Gibbon, 1851
• Mead, Samuel B., Owen, 1848
• Meek, Fielding B., Owen, 1848; Ill. GS, 1851; Cal. GS, 1853; Mo. GS, 1853; Iowa GS, 1855; Warren, 1856; NW Bdy., 1857; Mullan, 1858; Simpson, 1858; Raynolds, 1859; Hayes, 1860
• Merrick, Frederick, NHSNY, 1836
• Mexico, Wislizenus, 1846; US-Mexican Bdy., 1848
• Michaux, Andr�, Foreword
• Michigan, Jackson, 1847
• Michigan Geological Surveys: 1837, Mich. GS, 1837
• Michler, Nathaniel, US-Mexican Bdy., 1848; Michler, 1857
• Michler's Survey of the Isthmus of Darien: 1857, Michler, 1857
• Miles, Manley, Mich. GS, 1837
• Millington, John, Miss. GS, 1850
• Minnesota, Owen, 1848
• Minnesota Geological Surveys: 1859, Minn. GS, 1859
• Mississippi River, Schoolcraft & Allen, 1832; Nicollet, 1836
• Missouri Geological Survey: 1853, Mo. GS, 1853
• Missouri River, Frémont, 1842; Mullan, 1858
• Mitchell, Elisha, Introduction, NCGS
• Mitchell, Samuel L., Lewis & Clark, 1804
• Mitchill, Agnes, NHSNY
• Moore, Francis, Jr., Tex. GS, 1858
• Moore, W.D., Miss. GS, 1850
• Morse, Jedediah, Lewis & Clark, 1804
• Morton, James S., Isthmus of Chiriqui, 1860
• Morton, Samuel G., NHSNY, 1836
• Mullan, John, Mullan, 1858
• Mullan's Expedition from Fort Wallawalla to Fort Benton on the Missouri River: 1858, Mullan, 1858
• Murray, David, NJGS, 1835

   

• National Academy of Sciences, SCGS, 1824; Mass.GS, 1824
• Natural History Survey of New York: 1836, NHSNY, 1836
• Nebraska, Warren, 1856
• Newberry, J. S., Ill. GS, 1851; Cal. GS, 1853; Pacific R.R., 1853; Pope, 1855; Warren, 1855; Ives, 1857; NW Bdy., 1857; Macomb, 1859
• New Hampshire Geological Survey: 1839, NHGS, 1839
• New Jersey Geological Surveys: 1835, NJGS, 1835
• New Mexico, Abert, 1846; Pope, 1855; Macomb, 1859
• New York, NHSNY, 1836
• New York Lyceum of Natural History, NHSNY, 1836; 30
• Nicollet, Jean N., Nicollet, 1836
• Nicollet's Explorations of the Upper Mississippi River: 1836, Nicollet, 1836
• North Carolina Geological Surveys: 1823, NCGS, 1823
• Northwest Boundary Survey: 185 Long, 1819; NW Bdy., 1857
• Northwest Coast, Rodgers & Ringgold, 1853
• Norwood, Joseph G., Owen, 1847; Owen, 1848; Ill. GS, 1851; Pacific R.R., 1853
• Nuttall, Thomas, SCGS, 1824

   

• Ohio Geological Survey: 1837,Ohio GS, 1837
• Olmsted, Dennison, NCGS, 1823
• Ordway, John, Lewis & Clark, 1804
• Oregon, Frémont, 1843
• Oregon and Washington Surveys by Evans: 1851, Ore. & Wash., 1851
• Owen, David D., Ind. GS, 1837; Owen, 1839; Owen, 1847; Owen, 1848; Ore. & Wash., 1851; Ky. GS, 1854; Ark. GS, 1856
• Owen, Richard, Owen, 1848; Ark. GS, 1856
• Owen, Robert, Tenn. GS, 1831
• Owen's Exploration of Iowa, Wisconsin, and Illinois: 1839, Owen, 1839
• Owen's Survey of the Chippewa Land District of Wisconsin: 1847, Owen, 1847
• Owen's Survey of Wisconsin, Iowa, and Minnesota: 1848, Owen, 1848
• Ozark Mountains, Featherstonhaugh, 1834

   

• Pacific Railroad Surveys: 1853, Introduction, Pacific R.R., 1853
• Packard, Alphaeus S., Me.GS, 1836
• Page, Thomas J., Page, 1853
• Page's Exploration of the La Plata River: 1853, Page,1853
• Palmer, Edward, Cal. GS, 1853
• Parke, John G., Sitgreaves, 1851; Pacific R.R., 1853; NW Bdy., 1857
• Parry, Charles C., Owen, 1848; US-Mexican Bdy., 1848
• Peabody, W.B.O., ZBS Mass., 1837
• Peale, Charles W., Lewis & Clark, 1804; Long, 1819
• Peale, Titian R., cover, Long, 1819; US Expl. Exp., 1838; US Expl. Exp., 1838
• Peck, William G., Frémont, 1845; Emory, 1846
• Pennsylvania Geological Survey: 1836, Pa. GS, 1836
• Percival, James G., Conn. GS, 1835; Wisc. GS, 1853
• Perry, Matthew C., Perry, 1853
• Perry's U.S. Japan Expedition: 1852, Perry, 1853
• Peter, Robert, Ind. GS, 1837; Ky. GS, 1854; Ark. GS, 1856
• Phelps, Seth L., Gilliss, 1849
• Pickering, Charles, US Expl. Exp., 1838
• Pope, John, Pacific R.R., 1853; Pope, 1855
• Pratten, Henry, Owen, 1848; Ill. GS, 1851
• Price, Richard B., Mo. GS, 1853
• Prout, Hiram A., Ill. GS, 1851; Mo. GS, 1853; Pope, 1855

   

• Rafinesque, C.S., Lewis & Clark, 1804
• Randall, Henry S., NHSNY, 1836
• Raynolds's Exploration of the Yellowstone: 1859, Raynolds, 1859
• Red River, Sibley, 1803; Dunbar, 1804; Marcy, 1852
• Rich, William, US Expl. Exp., 1838; US-Mexican Bdy., 1848; Pacific R.R., 1853
• Ringgold, Cadwalader, Rodgers & Ringgold, 1853
• Rocky Mountains, Long, 1819; Frémont, 1842
• Rodgers, John, Rodgers & Ringgold, 1853
• Rodgers and Ringgold North Pacific Exploring Expedition: 1853, Rodgers & Ringgold, 1853
• Roessler, Anton R., Tex. GS, 1858
• Rogers, Henry D., NJGS, 1835; Va.GS, 1835; Pa. GS, 1836
• Rogers, Robert E., Va.GS, 1835; Pa. GS, 1836
• Rogers, William B., Va.GS, 1835
• Ruffin, Edmund, NCGS, 1823

   

• Safford, James M., Tenn. GS, 1831
• Sager, Abram, Mich. GS, 1837
• St. John, Orestes H., Ill. GS, 1851
• St. Peter's River, Long, 1823
• Salisbury, James H., NHSNY, 1836
• Salt Lake Valley, Stansbury, 1849
• San Diego, Emory, 1846
• Santa Fe, Simpson, 1849
• Say, Thomas, Long, 1819; Long, 1823
• Schaeffer, George C., Pacific R.R., 1853
• Schoolcraft, Henry R., Cass, 1820; Schoolcraft, 1831; Schoolcraft & Allen, 1832
• Schoolcraft and Allen's Expedition to the Source of the Mississippi River: 1832, Schoolcraft & Allen, 1832
• Schoolcraft's Expedition into the Indian Country: 1831, Schoolcraft, 1831
• Schott, Arthur C. V., US-Mexican Bdy., 1848; Michler, 1857
• Schweinitz, Lewis D. de, Long, 1823
• Sciater, Philip W., Gilliss, 1849
• Scudder, Samuel H., Ill. GS, 1851
• Sheafer, Peter W., Pa. GS, 1836
• Shepard, Charles U., SCGS, 1824; Marcy, 1852
• Shumard, B.F., Owen, 1848; Ore. & Wash., 1851; Marcy, 1852; Pacific R.R., 1853; Pope, 1855; Tex. GS, 1858
• Shumard, George G., Marcy, 1852; Marcy, 1854
• Sibley, John, I
• Sibley's Exploration of the Red River: 1803, Sibley, 1803
• Silliman, Benjamin, Cass, 1820; SCGS, 1824; Mass.GS, 1824; Schoolcraft & Allen, 1832; Featherstonhaugh, 1835
• Simpson, James H., Simpson, 1849; Simpson, 1858
• Sitgreaves, Lorenzo, Creek Bdy., 1849; Sitgreaves, 1851
• Sitgreaves's Expedition down the Zuni and Colorado Rivers: 1851, Sitgreaves, 1851
• Smith, G.H., NHSNY, 1836
• Smith, Jerome V., Mass.GS, 1824
• Smith, John L., SCGS, 1824; Gilliss, 1849
• South Carolina Geological Surveys: 1824, SCGS, 1824
• Stansbury, Howard, Introduction, Stansbury, 1849
• Stevens, Isaac I., Pacific R.R., 1853
• Stimpson, William, Rodgers & Ringgold, 1853; NW Bdy., 1857; Hayes, 1860
• Storer, David H., Long, 1819
• Storer, Francis H., Rodgers & Ringgold, 1853
• Suckley, George, Pacific R.R., 1853; NW Bdy., 1857
• Sullivant, William S., US Expl. Exp., 1838; Owen, 1848; Perry, 1853; Pacific R.R., 1853
• Swallow, George C., Mo. GS, 1853
• Swallow, P.C., Mo. GS, 1853

   

• Taylor, Bayard, Perry, 1852
• Taylor, Richard C., NHSNY, 1836
• Tennessee Geological Surveys: 1831, Tenn. GS, 1831
• Texas, Pope, 1855
• Texas Geological Survey: 1858, Tex. GS, 1858
• Thomas, David, NHSNY, 1836
• Thompson, Zadock, Vt. GS, 1844
• Thurber, George, US-Mexican Bdy., 1848
• Torrey, John, Long, 1819; Long, 1823; SCGS, 1824; Mass.GS, 1824; Schoolcraft & Allen, 1832; NJGS, 1835; NHSNY, 1836; Nicollet, 1836; US Expl. Exp., 1838; Frémont, 1842; Frémont, 1843; Emory, 1846; Owen, 1848; US-Mexican Bdy., 1848; Sitgreaves, 1851; Marcy, 1852; Ives, 1857; NW Bdy., 1857
• Trask, John B., Cal. GS, 1853
• Trego, Charles B., Pa. GS, 1836
• Troost, Gerard, Introduction, Cass, 1820; SCGS, 1824; Tenn. GS, 1831
• Trowbridge, William P., Pacific R.R., 1853
• Tuckerman, Edward, Jr., US Expl. Exp., 1838; Pacific R.R., 1853
• Tuomey, Michael, SCGS, 1824; Ala. GS, 1848
• Tyson, Philip T., Md. GS, 1833

   

• Uhler, Philip R., Rodgers & Ringgold, 1853; NW Bdy., 1857
• United States and Mexican Boundary Survey: 1848, Introduction, US-Mexican Bdy., 1848
• United States Exploring Expedition of 1838-1842, Introduction, US Expl. Exp., 1838
• United States Survey of the Creek Boundary Line: 1849, Creek Bdy., 1849
• Utah, Simpson, 1858; Macomb, 1859

   

• Vanuxem, Lardner, SCGS, 1824; NHSNY, 1836; Pa. GS, 1836
• Van Vliet, Stewart, US-Mexican Bdy., 1848; Pacific R.R., 1853
• Vaughan, John, Lewis & Clark, 1804
• Vermont Geological Surveys: 1844, Vt. GS, 1844
• Verrill, Addison E., Me.GS, 1836
• Viel, Egbert L., NJGS, 1835
• Virginia Geological Survey: 1835, Va.GS, 1835
• Vose, George L., Me.GS, 1836

   

• Wachsmuth, Charles, Ill. GS, 1851
• Wailes, Benjamin L.C., Miss. GS, 1850
• Ward, Townsend, Pa. GS, 1836
• Warren, Gouverneur K., Owen, 1848; Warren, 1855; Warren, 1856
• Warren's Explorations in Nebraska and Dacotah: 1856, Warren, 1856
• Warren's Sioux Expedition: 1855, Warren, 1855
• Washington, Ore. & Wash., 1851
• Washita River, I
• Watson, Sereno, Cal. GS, 1853
• Webb, Thomas H., US-Mexican Bdy., 1848
• Whelpley, James D., Pa. GS, 1836
• Whipple, Amiet W., Pacific R.R., 1853; Pacific R.R., 1853
• White, Albert D., Mich. GS, 1837
• Whitfield, Robert P., NHSNY, 1836; Iowa GS, 1855
• Whitney, Josiah D., NHGS, 1839; Jackson, 1847; Foster & Whitney, 1849; Ill. GS, 1851; Cal. GS, 1853; Wisc. GS, 1853; Iowa GS, 1855
• Whitney, William D., Jackson, 1847; Foster & Whitney, 1849
• Whittlesey, Charles, Ohio GS, 1837; Owen, 1848; Foster & Whitney, 1849; Wisc. GS, 1853; Minn. GS, 1859
• Wilkes, Charles, US Expl. Exp., 1838
• Williams, Samuel W., Perry, 1852
• Williamson, R. S., Pacific R.R., 1853
• Winchell, Alexander, Mich. GS, 1837
• Winchell, Newton H., Mich. GS, 1837
• Wisconsin, Owen, 1847; Owen, 1848
• Wisconsin Geological Survey: 1853, Wisc. GS, 1853
• Wislizenus, Frederick A., Wislizenus, 1846
• Wislizenus's Tour of Northern Mexico: 1846, Wislizenus, 1846
• Woodhouse, Samuel W., Creek Bdy., 1849; Sitgreaves, 1851
• Woodruff, Isaac C., Creek Bdy., 1849
• Worthen, Amos H., Ill. GS, 1851; Iowa GS, 1855
• Wright, Charles, US-Mexican Bdy., 1848; Rodgers & Ringgold, 1853
• Wright, John, Mich. GS, 1837
• Wurtz, Henry, NJGS, 1835
• Wyman, Jeffries, Gilliss, 1849; Wisc. GS, 1853

   

• Yellowstone River, Raynolds, 1859

   

• Zoological and Botanical Survey of Massachusetts: 1837, ZBS Mass., 1837
• Zuni River, Sitgreaves, 1851

 

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