x v i L I S T O F T E X T S 41. To Arnold Sommerfeld, 28 January 1922 42. From Gregory Breit, 31 January 1922 43. “On the Theory of Light Propagation in Dispersive Media,” 2 February 1922 “Zur Theorie der Lichtfortpflanzung in dispergierenden Medien” Preußische Akademie der Wissenschaften (Berlin). Physikalisch- mathematische Klasse. Sitzungsberichte (1922) 44. From Hermann Anschütz-Kaempfe, 3 February 1922 45. From Paul Ehrenfest, 4 February 1922 46. From Joan Voûte, 11 February 1922 47. To Paul Ehrenfest, 12 February 1922 48. To Hans Albert and Eduard Einstein, 12 February 1922 49. From Hans Albert Einstein, between 12 February and 4 March 1922 50. From Eduard Einstein, between 12 February and 4 March 1922 51. To Madeleine Rolland, 15 February 1922 52. From Emil Warburg, 15 February 1922 53. “Proposal for the Nomination of a Corresponding Member in Physics” [Niels Bohr], before 16 February 1922 “Antrag auf Ernennung eines korrespondierenden Mitgliedes aus dem Gebiete der Physik” 54. From Paul Ehrenfest, 16 February 1922 55. From Wolfgang Hallgarten, 16 February 1922 56. From Paul Langevin, 18 February 1922 57. To Paul Ehrenfest, 20 February 1922 58. To Oswald Veblen, 20 February 1922 59. To Franz Selety, 22 February 1922 60. To Juliusz Wolfsohn, 22 February 1922 61. From Theodor von Kármán, 22 February 1922 62. Review of Wolfgang Pauli, The Theory of Relativity, 24 February 1922 Die Naturwissenschaften 10 (1922) 63. To Paul Langevin, 27 February 1922 64. From Thomas Barclay, 3 March 1922 65. From Erich Marx, 3 March 1922 66. To Erich Marx, after 3 March 1922 67. To Hans Albert and Eduard Einstein, 4 March 1922