INDEX 681 Bodmer, Hans: letter to AE, 575n Boethius, 144n Böhi, Paul (1883-1943), 339n doctorate of, 298n experiments with Heinrich Zangger on Brownian motion, 298n Böhmisch-Trübau, 423 Bois, Henri du (1863-1918), 549n Boltzmann, Ludwig (1844-1906), 18n, 99, 300, 411 interpretation of entropy by, 87 succeeded by Friedrich Hasenöhrl in Vienna, 413n Boltzmann principle, 282 AE on validity of, 310, 321 applied to radiation by Max Laue, 42n in AE's paper on opalescence, 256 Josef Weiß's application of, 166n lecture by AE on, 257n Boltzmann's constant, 27n Borel and Cie. factory, 240n Born, Max (1882-1970), 81n, 233n, 251n, 257, 277n, 446n, 461n, 496n candidacy for chair at University of Zurich, AE's comments on, 445 paper on rigid motion in special relativity: 211n, AE's comments on, 232 study of accelerated motion in special relativity, 486 work on quantum theory of specific heat, AE's comments on, 480, 505 Bose, Emil (1874-1911), 98n letter to Laub, Jakob, 309n receives manuscript by AE, 98 succession of in La Plata, 309n Bosshart, Jakob (1862-1924), 91n on vacancy at Zurich Gymnasium, 91 Bragg, William Henry (1862-1942): lecture at second Solvay Congress: 563n, AE's comments on, 562 Bragg, William Lawrence (1890-1970): theory of X-ray diffraction of, 519n Braun, Konrad von (1859-?), 273n Braune, Hermann, 244 Bredig, Georg (1868-1944), 514n Bredow, Raimund, 145, 145n Brenner, Ernst (1856-1911), 201n Brillouin, Leon Nicolas (1889-1969): on sig- nal velocity, 60 Brillouin, Marcel (1854-1948), 300, 302n, 349, 522n Broglie, Maurice de (1875-1960), 300, 301n Brownian motion, 271, 520 AE's comments on first paper on, 31 Heinrich Zangger's experiments with Paul Böhi on, AE's comments on, 296-298 Louis-Georges Gouy's objections to AE's theory of, 44 rotatory, Jean Perrin's work on, 216 The Svedberg's work on, AE's comments on, 217 Bruggmann, Emil, 244 Bruins, Eva (1885-?), 524n, 540n, 580n Bucherer, Alfred (1863-1927), 50n, 187n, 190 comments on Walter Kaufmann's work at GDNA meeting, 138n discussion with Ebenezer Cunningham, 134, 135n, 137-138 discussion with Max Planck on relativity, 50n experimental determina- tion of specific charge of electron, 133-134, 135n, 136-138 objections to relativity principle, 50, 50n on equiva- lence of mass and energy, 147, 148 on force in electrodynamics, 148 principle of relativity of, 135n use of term Lorentz- Einstein theory, 135n Budapest, Mileva Einstein-Marid in, 22 Buisson, Henri, 316, 317n Buridan's ass, 326n Burkhardt, Heinrich (1861-1914), 36n, 188 opinion on AE's dissertation, 36 Busch, Wilhelm (1832-1908), 572, 573n Butler, Nicholas Murray (1862-1947), 389, 390n Buzzer, AE's use of, 241 Calame, Louis, 525n Campbell, Norman (1880-1949), 220 Ludwig Hopf's comment on work of, 417 polemic with Edgar Meyer, 221n Campbell, William Wallace (1862-1938), 560n, 567n letter from Hale, George, 567n letter to Hale, George, 567n pro- vides eclipse photographs, 566 Canal rays: Johannes Stark's work on, 87 Johannes Stark's work on Doppler effect in: 144n, AE's comments on, 47, 144, 150 AE on Doppler effect in, 450 planned experiment by Peter Paul Koch on, 87 Cantor, Matthias (1861-1916), 120, 120n, 188 on Hermann Minkowski's work, 119 planned experimental test of AE's and Jakob Laub's ponderomotive force, AE's comments on, 131 Cathode rays: Jakob Laub's work on: 122n,