I N D E X 9 7 3 364 Burgers, Johannes (1895–1981), 195 Burglars, AE on, 289 Burnett, Edgar A., birthday greetings, 904a Busch, Adolf (1891–1952), 411n, 863a sends regards to AE, 410 Busch, Wilhelm, AE on, 673n quotes, 511 Büttner, Grete, birthday greetings, 892a Byland, Elsa (1912–1997), 457n, 866a Byland, Florence (1873–1940), 457n, 866a Byland, Hans (1878–1949), 457n, 866a, 895a, 898a AE reminisces about, 456 Byland, William (1912–1975), 457n, 866a Cabrera, Blas, 887a, 888a Calcutta Mathematical Society, 842a AE honor- ary member of, 852a Cambridge, AE plans to visit, 852a declines, 852a Cammerer, Johann (1878–1900), 633 Campbell, William W., 85n Canton (Guangzhou), China, commune uprising, 838a Capel, W. H., 632 Carathéodory, Constantin (1873–1950), 441n, 510, 868a, 869a, 873a, 875a, 876a, 878a, 882a, 906a. See also Mathematische Annalen, conflict in editorial board of Carnap, Rudolf (1891–1970), 92n AE recom- mends work of to Meyerson, 92 Cartan, Élie (1869–1951), 732n teleparallel geometry brief history of, 745, 751 correspondence with AE on, lxxi on his work on, 731–732 AE’s response, 740 Casares, Julio (1877–1964), 110 proposal on na- tional committees at Ninth Session of ICIC, 111n Casimir, H.B.G., 632 Cassirer, Ernst, 848a Castelfranchi, Gaetano, 867a, 873a Causality AE’s belief in ultimate validity of, 307, 315 and free will, AE on, 271 human need for, AE on, 271 lack of in modern physics, AE on, 273–275, 307, 315 in natural phenomena, AE on, 271–272 in quantum theory, Heisenberg on, 46–47 Cavaillès, Jean, 823a, 828a Cecil Rhodes fellowships, for Germany, AE asked to assist with reinstating, 811a Central Conference of American Rabbis, birth- day greetings, 903a Centralverein deutscher Staatsbürger jüdischen Glaubens, li Cervantes, Miguel de, AE on, 909 Chadwick, James, 428 Chajes, Zwi Peres, 809a Chamberlain, William J., 487n Champollion, Jean-François, 748n Chapiro, Joseph, 815a Chaplin, Charlie, 205n Charléty, Sébastien, 907a China AE’s planned trip to, 14, 15, 16 Guangzhou Uprising, AE on, 226 terror in, AE questioned on, 841a violence in, AE on, l Chmnelnizki, Josef, 897a Christian-Jewish relations, AE on, liv Cicero, 281n Citogel G.m.b.H., 809a, 825a, 835a, 839a Civilization, AE on nadir of, 230 Clarkson, Stephen, birthday greetings, 891a Cleinow, Georg, 95n Club 1926, invites AE to address meeting, 821a declined, 126 Coehn, Alfred, 880a Cohen, Arthur Leroy, sends paper on relativity, 875a AE’s comments, 523 Cohen, Elieser R., 883a, 884a, 888a, 889a, 897a Cohen, Felix, 316n Cohen, Miss, 885a Cohen, Morris R. (1880–1947), 315n, 819a, 822a attacked as “un-American,” 315n gift of leather briefcase to AE, 315 Cohn, Emil (1881–1948), 692, 903a Cohn, Oscar, 824a, 827a Collège de France, AE lectures at, 14 Como, meeting in, Bohr’s paper at, 48n Compton, Arthur H. (1892–1962), 123n AE nominates for 1928 Nobel Prize, xlii, 123 Paul Ehrenfest considers worthy of Nobel Prize, 128 Compton, Karl T. (1997–1954), 113n Conklin, Edwin G. (1863–1952), 113n, 816a Conrad, V., 805a Conseil international de recherches (CIR), lxxviii, 184 possible membership of central powers of, 157