Stephens, I, _44_; II, 324. Stephenson, G., II, _138_. Stephenson, R., II, _138_. Stevin, I, _83_, 313; II, 59. Stewart, D., II, _53_. Stewart, R., I, _186_. Stifel, M., II, _373_. Strafford, Earl of, I, _240_. Stratford, W. S., I, _300_. Street, T., I, _124_. Stukely, W., I, _236_. Suffield, G., II, _66_. Suidas, II, _29_. Sumner, C. R., I, _324_. Sumner, J. B., I, _324_. Sun as an electric space, II, 41. Supernatural, The, II, 193. Suvaroff, II, _85_. Swastika, II, 231. Swedenborg, E., I, _255_. Swift, I, 19, 133. Sylvester, J. J., II, _336_. Symington, W., I, _148_. Symons, II, 4, 5, 20, 84, 85. Sympathetic powder, I, 108. Synesius, I, 125. Talbot, G., I, _22_, _108_. Talbot's powder, I, 108. Tartaglia, II, 59. Tasse, I, _106_. Tate, J., I, _199_. Tauler, J., II, _322_. Taylor, Brook, II, _301_. Taylor, John, I, _352_; II, 95. Taylor, Robt., I, _270_. Taylor, T., I, 188, _188_. Teissier, I, _113_. Temple, H. J., I, 290. Tenterden, Chief Justice, I, _181_. Thales, II, _59_, 83. Theism independent of Revelation, I, 399. Thelwall, J., I, _178_. Theodoretus, I, _358_. Theological Paradoxes, I, 316. Theology, Mathematical, I, 129, 149. Theophrastus, II, _167_. Thiebault, II, _3_, 338. Thom, D., II, _226_, 240. Thom, J. H., II, _226_. Thompson, P., I, _7_. Thompson, T. P., I, _252_, 287, 344; II, 83, 185. Thomson, Dr., I, 21. Thomson, W., I, _325_. Thorn, W., II, 158, _158_, 360. Thorndike, H., II, _313_. Thrale, Mrs., I, _235_. Thurlow, Baron, I, _222_. Thyraeus, I, 50. Tides, New theory of, I, 393. Tombstones of mathematicians, I, 106. Tonal System, II, 182. Tooke, H., I, _178_. Torriano, E., I, 250. Towneley, II, 300. Townley, C., II, _300_. Trisection problem, I, 118; II, 10, 12, 13, 15. Troughton, I, _152_. Turnor, E., I, _137_. Tycho Brahe, I, 5, _76_, 381; II, 302, 335. Upton, W., II, 12, _12_, 15. Ursus, I, _52_. Valentine, B., I, _125_, 125. Van Ceulen, I, 52, 70, 100. Van de Weyer, I, _313_. Van Etten, I, _161_. Van Helmont, I, _125_, 125. Van Roomen, I, _110_. Van Schooten, II, _59_. Vaughan, T., I, _255_. Victorinus, I, _359_. Viete, I, _51_; II, 210, 295. Virgil, St., I, 32, _33_, 34, 99. {387} Virginia, University of, I, 233. Viscellinus, II, _342_. Vitruvius, II, _281_. Vivian, T., I, 172, _172_. Vogel, A. F., I, 373. Voltaire, I, 103, 165, 166, 167, 168, 248; II, 268. Von Gumpach, II, 137, _137_. Von Hutten, I, 318. Von Wolzogen. (_See Wolzogen._) Vyse, R. W. H., I, _328_.