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Shanahan, Chas. E., 374.
Shattuck, Georgi(rB?ri8.
Shenandoah formation, 178, 180.
Shepard, C. U., 243, 259.
Sheppard, F., 254.
Shrigley, Nathaniel, 233.
Shriver, Howard, 324.
Shriver, James, 55, 239, 363.
Sides, Wm., 371.
Sidney, J. C., 370.
Silliman, B., 253, 254, 258.
SHlverling, Jonas, 343.
Silurian, 169, 179.
Silvester, R. W., 73.
Simmons, 370.
Singleton, H. K., 291.
Slade, James, 370.
Slate, 211.
Small, W. F., 363.
Smith, Anthony, 353, 354, 358, 359,
360. ——— '*
Smith, E., 123.
Smith, F. M., 106.
Smith, John, 45, 46, 47, 231, 333, 334,
369, 378, 390, 393.
Smith, J. Calvin, 376, 388.
Smith, J. Lawrence, 265.
Smock, J. C., 289, 292.
Soapstone, 36, 227.
Society of Anti-Gallicans, 348.
Soils, study of nature and origin
of, 39.
Sotzmann, D. F., 359.
Sparks, Jared, 240.
Speed, John, 338.
Spencer, A. C., IS.
Spencer, F. W., 292.
Spencer, J. W., 295.
Spencer, S. B., 320.
Stamp, H. M. F. P., 379.
Stanley -Brown, J., 108.
Stanton, T. W., 112.
State Agricultural Chemist, 68.
Statistical information, collection
of, 41.
Stephens, Thomas, 277.
Stevenson, J. J., 81, 282, 285, 299, 320.
Strong, 388.
Struve, Baron von, 238.
Sullivan, J. A., 123.
Sullivant, J., 280.
Swain, Geo. F., 295.
Swank, J. M., 82, 289, 292, 295, 297,
299, 302, 308, 315, 320, 324, 327.
Swedenborg, Emanuel, 235.
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T.
Taff, Joseph, 329, 400.
Taff, J. A., 115.
Taggart, Thos., 374.
Tanner, H. S., 362, 365.
Taylor, Robert, 373.
Taylor, R. C., 65, 249, 262, 266, 369,
371.
Thom, J. W., 115.
Thomas, Gabriel, 339, 390.
Thomson, Thomas, 258.
Thornton, John, 339.
Tittman, 0. H., 121, 122.
Toner, Joseph M., 280.
Topographic maps, preparation of,
28, 96.
Torbet, J. B., 397.
Totten, Jas. E., 239.
Trebout, C., 360.
Triassic, 171: —
Trimble, Isaac, 252, 367.
Troost, G., 54, 238, 240.
Tryon, Geo. W., Jr., 270.
Tuscarora formation, 181.
Twinning, Wm. I., 387.
Tyndall, Robt., 393.
Tyson, P. T., 56, 65, 68, 69, 71, 72, 80,
243, 252, 269, 270, 271, 276, 374,
375," 381.
tr.
Uhler, P. R., 18, 19, 72, 73, 82, 83, 84,
289, 302, 305, 308, 315, 392.
United States Coast and Geodetic
Survey, 20, 115, 369, 372, 374,
375, 376, 377, 378, 379, 385, 387,
388, 389, 392, 393, 395, 399, 400,
406, 423, 429, 432, 433, 434, 435,
449, 450, 454, 460, 472, 476, 486,
487, 488, 490, 492, 498, 502, 503,
510, 513, 514.
United States Geological Survey, 29,
85, 95, 393, 394, 395, 396, 397, 399,
400, 401, 487.
U. S. War Department, 378.
V.
Vallance, 359.
Vance, D. H., 363.
Van Der Hoogt, Cornelius, 331, 401.
Vandermaelen, Ph., 364.
Van Hise, Chas. R., 315, 331, 396.
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