Fayerweather Laboratory, 376 Fehispan, governor of Torontal, 161-164 Fish, Frederick P., 340 Fiske, 352 Fizeau, 257 Fluorescent screens, 307, 309 Foucault, 257 Fourier, 257 France, summer in, 187-189; visit to, 257, 258, 262 Francis, Emperor, 5 Francis Joseph, Emperor, 9, 22 Franklin, Benjamin, 12, 13, 19, 29, 39, 45, 57, 74, 105, 124, 193, 202, 266, 312, 315, 360 Franklin Institute, 348 Fred (friend of Jim the engineer), 83 Frederick, Crown Prince, 233, 275 Frederick the Great, 5-7 French scientific progress, 257, 262 Fresnel, 204, 257 Frushka Gora (mountain), 24 Gabriel, son of Milutin, 165-169 Gaenserndorf, 25, 26, 28 Galileo, 193-195, 221, 297, 333 Gallatin, Albert R., 296 Garibaldi, 8, 9 Geltner, Professor, 275 General Electric Company, 289, 341, 358 General Relativity Theory, 355 Generators, electrical, 281, 282 Germans, 30, 31, 35; social democracy, 89; scientific progress, 208, 256-264 _et passim_ Germany, studies in, 229-278, 318, 338 Gessler, 147 Ghiga (peasant), 161 Gibbons, Cardinal, 59, 60 Gibbs, Professor Josiah Willard, 184, 186, 207, 256, 257, 277, 278 Godfather of author, 160 Goethe, 86 Goldstein, Doctor, 303-305 Goodyear, 319 Graduation from Columbia, 136, 137 Grant, 79 Gravitation, nature of, 354 Green, Mr. (of Marconi Co.), 343-345 Grounding, importance of electrical, 301, 302 Hale, Doctor George Ellery, 294, 362, 367, 368 Hamilton, Alexander, 100, 101, 103, 107, 118, 121, 128, 193, 315 Hamilton, Duke of, 212 Hamilton Hall, Columbia University, 100, 101 Harding, President Warren G., 386, 387 Harvard University, 256, 376 Hayduk Velyko, 6, 54, 55 Hayes, 91, 93 Heat, nature of, 76, 185, 186 _Heat as a Mode of Motion_ (Tyndall), 102 Heaviside, 333-335 Hebert Prize of French Academy, 348 Helmholtz, Hermann von, 193, 195, 200, 208, 210, 218, 225, 230-243, 248, 249, 251, 256-258, 260-264, 271, 275, 277, 287, 289, 294, 295, 298, 299, 303-305, 341, 344 Henry (electrical unit), 273 Henry, Frank, 114, 115 Henry, Joseph, 77, 183, 201, 202, 205, 220, 266, 271-274, 284, 290, 291, 319, 320, 358, 366, 375 Henry, Patrick, 88 Herdsman, experiences in Idvor as, 14-21, 301, 302, 333, 334 Hermite, 257 Herschel, William, 202 Hertz, Doctor Heinrich, 219, 221, 228, 263-272, 301, 305 Hertzian oscillator, 265-270 Hilendar (monastery), 70 Hittorf, 303 Hoffman, 263 Hohenzollern, William, 112 Homer, 86, 112, 130, 131 Hook, 334 Hoover, Herbert, 314 Horace, 87 Horse training in Norfolk, 324-326 Howe, 77 Hunt, Robert, 102, 130 Huss, Yan, 33 Hutchinson, Doctor Cary T., 337 Huxley, 91 Idealism in American science, 311-384 Idvor, life and experiences in, 2-22, 34, 36, 138-143, 156-169, 189-191, 215, 242-248, 301, 302, 346 Inductance coils, 335-342, 345