The Collected Papers of Albert Einstein, Volume 8 (English)

List of Texts v Publisher's Foreword xiii Acknowledgments xxv Texts 3 Vol. 1, 116. From Mileva Maric;, after 7 July 1901 3 Vol. 5, 136a. From Dmitry Mirimanoff, 5 February 1909 4 Vol. 5, 136b. To Dmitry Mirimanoff, 9 February 1909 5 Vol. 5, 312a. To Marie Curie, 23 November 1911 5 Vol. 5, 375a. From Walther Nernst, 23 March 1912 6 Vol. 5, 430. To Unknown Addressee, 2 March 1913 7 Vol. 5, 500a. To Jakob Ehrat, 7 January 1914 8 1.To Mileva Einstein-Maric, 2 April 1914 9 2.To Paul Ehrenfest, before 10 April 1914 9 3.To Mileva Einstein-Maric, Hans Albert and Eduard Einstein, 10 April 1914 11 4.From Paul Ehrenfest, 10 April 1914 or later 11 5.To Joseph Petzoldt, 14 April 1914 12 6.To Adolf Hurwitz and Family, 4 May 1914 13 7.To Petr Petrovich Lazarev, 16 May 1914 13 8.To Paul Ehrenfest, 18 May 1914 14 9.From Paul Ehrenfest, 20 May 1914 15 10.From Paul Ehrenfest, 21 May 1914 17 11.To Paul Ehrenfest, 25 May 1914 21 12.To Otto Stern, after 4 June 1914 23 13.To Joseph Petzoldt, 11 June 1914 24 14.To Wilhelm Wien, 15 June 1914 24 15.From Wilhelm Wien, 19 June 1914 25 16.From Walter Schottky, 25 June 1914 27 17.From Walther Nernst, 2 July 1914 29 18.To Max Planck, 7 July 1914 30 19.To Paul Ehrenfest, 8 July 1914 31 20.From Max Planck, 12 July 1914 32 21.To Fritz Reiche, 18 July 1914 32 22.Memorandum to Mileva Einstein-Maric, with Comments, ca. 18 July 1914 32 23.To Mileva Einstein-Maric, ca. 18 July 1914 33 24.To Mileva Einstein-Maric, ca. 18 July 1914 34 25.To Robert Heller, 20 July 1914 34 26.To Elsa Einstein, 26 July 1914 35 27.To Elsa Einstein, after 26 July 1914 36 28.To Elsa Einstein, before 30 July 1914 37 29.To Elsa Einstein, 30 July 1914 37 30.To Elsa Einstein, 30 July 1914 38 31.To Elsa Einstein, 3 August 1914 39 32.To Elsa Einstein, after 3 August 1914 40 33.To Mileva Einstein-Marc, 18 August 1914 41 34.To Paul Ehrenfest, 19 August 1914 41 35.To Hans Albert Einstein, 10 September 1914 42 36.To Mileva Einstein-Mark, 15 September 1914 42 37.To Adolf Schmidt, 30 October 1914 43 38.From Adolf Schmidt, 31 October 1914 45 39.To Paul Ehrenfest, beginning December 1914 46 40.To Mileva Einstein-Maric;, 12 December 1914 47 41.To Michael Polanyi, 13 December 1914 48 42.To Michael Polanyi, 30 December 1914 49 43.From Hendrik A. Lorentz, between 1 and 23 January 1915 49 44.To Edgar Meyer, 2 January 1915 56 45.To Paolo Straneo, 7 January 1915 57 46.To Mileva Einstein-Maric, 12 January 1915 58 47.To Hendrik A. Lorentz, 23 January 1915 59 48.To Hans Albert Einstein, 25 January 1915 63 49.To Mileva Einstein-Maric, 27 January 1915 64 50.To Wladyslaw Natanson, 27 January 1915 64 51.To Wilhelm Waldeyer, 27 January 1915 65 52.To Hendrik A. Lorentz, 3 February 1915 65 53.To Erwin Freundlich, ca. 3 February 1915 66 54.To Erwin Freundlich, 5 February 1915 66 55.To Michael Polanyi, 10 February 1915 67 56.To Michele Besso, 12 February 1915 68 57.To Georg Nicolai, 20 February 1915 69 58.To Mileva Einstein-Maric, 1 March 1915 70 59.To Erwin Freundlich, between 1 and 25 March 1915 70 60.To Tullio Levi-Civita, 5 March 1915 71 61.To Wander de Haas, 17 March 1915 73 62.To Tullio Levi-Civita, 17 March 1915 73 63.To Erwin Freundlich, 19 March 1915 75 64.To Tullio Levi-Civita, 20 March 1915 76 65.To Romain Rolland, 22 March 1915 77 66.To Tullio Levi-Civita, 26 March 1915 77 67.From Tullio Levi-Civita, 28 March 1915 79 68.From Romain Rolland, 28 March 1915 81 69.To Tullio Levi-Civita, 2 April 1915 82 70.To Hans Albert Einstein, before 4 April 1915 84 71.To Tullio Levi-Civita, 8 April 1915 85 72.To Geertruida de Haas, before 10 April 1915 86 73.To Heinrich Zangger, ca. 10 April 1915 87 74.To Tullio Levi-Civita, 11 April 1915 88 75.To Tullio Levi-Civita, 14 April 1915 89 76.To Fritz Weishut, 18 April 1915 89 77.To Tullio Levi-Civita, 20 April 1915 90 78.To Tullio Levi-Civita, 21 April 1915 91 79.To Hendrik A. Lorentz, 28 April 1915 92 80.To Tullio Levi-Civita, 5 May 1915 93 81.To Michael Polanyi, 8 May 1915 93 82.To Wander and Geertruida de Haas, ca. 10 May 1915 95 83.To Mileva Einstein-Maric, 15 May 1915 97 84.To Heinrich Zangger, 17 May 1915 97 85.From Max von Laue, 27 May 1915 98 86.To Heinrich Zangger, 28 May 1915 100 87.To Walter Dallenbach, 31 May 1915 101 88.From Helene Katz, 11 June 1915 103 89.To Michael Polanyi, 18 June 1915 104 90.From Hans Reissner, 22 June 1915 104 91.To David Hilbert, 24 June 1915 107 92.To Wander and Geertruida de Haas, 6 July 1915 108 93.To Michael Polanyi, 6 July 1915 108 94.To Heinrich Zangger, 7 July 1915 109 95.To Wander and Geertruida de Haas, 9 July 1915 110 96.To Arnold Sommerfeld, 15 July 1915 ill 97.From Heinrich Mousson, 19 July 1915 ill 98.To Hendrik A. Lorentz, 21 July 1915 113 99.To Wander and Geertruida de Haas, 24 July 1915 114 BOOKID100. To Heinrich Mousson, 24 July 1915 114 101.To Heinrich Zangger, between 24 July and 7 August 1915 115 102.To Wander and Geertruida de Haas, 2 August 1915 116 103.To Hendrik A. Lorentz, 2 August 1915 117 104.To Wander de Haas, 7 August 1915 118 105.From Knud A. Nissen, 9 August 1915 119 106.To Wander and Geertruida de Haas, 10 August 1915 119 107.To Wander and Geertruida de Haas, 14 August 1915 120 108.To Paul Hertz, between 14 August and 4 November 1915 120 109.To Pieter Zeeman, 15 August 1915 121 110.To Wander and Geertruida de Haas, 16 August 1915 121 111.To Paul Hertz, 22 August 1915 122 112.To Paul Ehrenfest, 23 August 1915 124 113.To Wladyslaw Natanson, 24 August 1915 124 114.To Elsa Einstein, 30 August 1915 125 115.To Elsa Einstein, 3 September 1915 125 116.To Elsa Einstein, 11 September 1915 126 117.To Elsa Einstein, 13 September 1915 127 118.To Romain Rolland, 15 September 1915 127 119.To Heinrich Mousson, 17 September 1915 128 120.To Heinrich Zangger, 19 September 1915 129 121.To Heinrich Zangger, 21 September 1915 130 122.To Hendrik A. Lorentz, 23 September 1915 131 123.To Erwin Freundlich, 30 September 1915 132 124.To Otto Naumann, after 1 October 1915 133 125.To Paul Hertz, before 8 October 1915 134 126.To Paul Hertz, before 8 October 1915 134 127.From Paul Hertz, 8 October 1915 135 128.To Paul Hertz, 9 October 1915 135 129.To Hendrik A. Lorentz, 12 October 1915 135 130.To Heinrich Zangger, 15 October 1915 137 131.To Walther Schucking, 22 October 1915 138 132.To Berliner Goethebund, after 23 October 1915 138 133.From Michele Besso, ca. 30 October 1915 139 134.To Hans Albert Einstein, 4 November 1915 140 135.Rom Mileva Einstein-Maric, 5 November 1915 141 136.To David Hilbert, 7 November 1915 141 137.From Max Planck, 7 November 1915 142 138.To Berliner Goethebund, 11 November 1915 143 139.To David Hilbert, 12 November 1915 143 140.From David Hilbert, 13 November 1915 144 141.To Wander and Geertruida de Haas, before 15 November 1915 145 142.To Hans Albert Einstein, 15 November 1915 146 143.To Mileva Einstein-Maric, 15 November 1915 146 144.To David Hilbert, 15 November 1915 146 145.From Max Planck, 15 November 1915 147 146.To Berliner Goethebund, 16 November 1915 147 147.To Michele Besso, 17 November 1915 148 148.To David Hilbert, 18 November 1915 148 149.From David Hilbert, 19 November 1915 149 150.To Hans Albert Einstein, 23 November 1915 149 151.To Erwin Freundlich, 24 November 1915 149 152.To Heinrich Zangger, 26 November 1915 150 153.To Arnold Sommerfeld, 28 November 1915 152 154.From Michele Besso, 29 November 1915 154 155.To Michele Besso, 30 November 1915 154 156.To Hans Albert Einstein, 30 November 1915 155 157.To Erwin Freundlich, 30 November 1915 155 158.From Michele Besso, after 30 November 1915 156 159.To Mileva Einstein-Maric, 1 December 1915 156 160.To Otto Naumann, 7 December 1915 157 161.To Arnold Sommerfeld, 9 December 1915 159 162.To Michele Besso, 10 December 1915 159 163.To Mileva Einstein-Maric, 10 December 1915 160 164.From Michele Besso, 11 December 1915 160 165.To Moritz Schlick, 14 December 1915 161 166.To Hans Albert Einstein, 18 December 1915 162 167.To David Hilbert, 20 December 1915 162 168.To Michele Besso, 21 December 1915 163 169.From Karl Schwarzschild, 22 December 1915 163 170.To Hans Albert Einstein, 23 December 1915 165 171.To Royal Society of Sciences in Gottingen, 23 December 1915 166 172.To Hans Albert Einstein, 25 December 1915 166 173.To Paul Ehrenfest, 26 December 1915 167 174.To Paul Ehrenfest, 29 December 1915 168 175.To Wladyslaw Natanson, 29 December 1915 169 176.To Karl Schwarzschild, 29 December 1915 169 177.To Hendrik A. Lorentz, 1 January 1916 170 178.To Michele Besso, 3 January 1916 171 179.To Paul Ehrenfest, 3 January 1916 173 180.To Paul Ehrenfest, 5 January 1916 173 181.To Karl Schwarzschild, 9 January 1916 175 182.To Paul Ehrenfest, 17 January 1916 177 183.To Hendrik A. Lorentz, 17 January 1916 179 184.To Hendrik A. Lorentz, 19 January 1916 181 185.To Paul Ehrenfest, 24 January 1916 or later 182 186.To Arnold Sommerfeld, 2 February 1916 188 187.To Mileva Einstein-Maric, 6 February 1916 189 188.From Karl Schwarzschild, 6 February 1916 190 189.To Arnold Sommerfeld, 8 February 1916 192 190.To Hermann Struve, 13 February 1916 193 191.To Otto Stern, 15 February 1916 193 192.To Otto Stern, after 15 February 1916 194 193.To David Hilbert, 18 February 1916 195 194.To Karl Schwarzschild, 19 February 1916 196 195.To Max Born, 27 February 1916 196 196.To Wilhelm Wien, 28 February 1916 197 197.To Hans Albert Einstein, 3 March 1916 197 198.To Otto Stern, 10 March 1916 197 199.To Hans Albert Einstein, 11 March 1916 199 BOOKID200. To Mileva Einstein-Maric, 12 March 1916 200 201.From Otto Stern, 13 March 1916 201 202.To Hans Albert Einstein, 16 March 1916 203 203.To Wilhelm Wien, 18 March 1916 203 204.From Wilhelm Foerster, 25 March 1916 204 205.To Otto Stern, 27 March 1916 204 206.To Hans Albert Einstein, 30 March 1916 205 207.To David Hilbert, 30 March 1916 205 208.To Mileva Einstein-Maric, 1 April 1916 206 209.To Michele Besso, 6 April 1916 207 210.To Hans Albert and Eduard Einstein, 6 April 1916 207 211.To Mileva Einstein-Maric, 8 April 1916 208 212.To Elsa Einstein, 12 April 1916 209 213.To Elsa Einstein, 15 April 1916 209 214.To Hans Albert Einstein, 15 April 1916 210 215.To Michele Besso, 21 April 1916 210 216.To Elsa Einstein, 21 April 1916 210 217.To Michele Besso, 22 April 1916 211 218.To Paul Ehrenfest, 29 April 1916 212 219.To Michele Besso, 14 May 1916 212 220.To Paul Ehrenfest, 24 May 1916 213 221.To David Hilbert, 25 May 1916 214 222.From David Hilbert, 27 May 1916 215 223.To David Hilbert, 30 May 1916 216 224.To David Hilbert, 2 June 1916 217 225.From Hendrik A. Lorentz, 6 June 1916 218 226.To Hendrik A. Lorentz, 17 June 1916 221 227.To Willem de Sitter, 22 June 1916 223 228.From Theophile de Donder, 27 June 1916 224 229.From Michele Besso, 28 June 1916 225 230.To Theophile de Donder, 30 June 1916 226 231.From Theophile de Donder, 4 July 1916 226 232.To Theophile de Donder, 8 July 1916 228 233.To Michele Besso, 14 July 1916 230 234.From Theophile de Donder, 14 July 1916 231 235.To Willem de Sitter, 15 July 1916 232 236.To Theophile de Donder, 17 July 1916 233 237.From Michele Besso, 17 July 1916 233 238.To Michele Besso, 21 July 1916 234 239.To Michele Besso, 21 July 1916 235 240.To Theophile de Donder, 23 July 1916 235 241.To Hans Albert Einstein, 25 July 1916 237 242.To Heinrich Zangger, 25 July 1916 237 243.From Willem de Sitter, 27 July 1916 238 244.From Willem de Sitter, 27 July 1916 239 245.To Michele Besso, 31 July 1916 240 246.To Arnold Sommerfeld, 3 August 1916 241 247.From Gunnar Nordstrom, 3 August 1916 241 248.From Theophile de Donder, 6 August 1916 241 249.From Theophile de Donder, 8 August 1916 243 250.To Michele Besso, 11 August 1916 243 251.To Michele Besso, 24 August 1916 244 252.To Heinrich Zangger, 24 August 1916 245 253.To Paul Ehrenfest, 25 August 1916 245 254.To Michele Besso, 6 September 1916 246 255.To Constantin Caratheodory, 6 September 1916 247 256.To Paul Ehrenfest, 6 September 1916 248 257.To Hedwig Born, 8 September 1916 249 258.To Helene Savic, 8 September 1916 249 259.To Paul Ehrenfest, 14 September 1916 250 260.To Michele Besso, 26 September 1916 251 261.To Hans Albert Einstein, 26 September 1916 251 262.To Wander and Geertruida de Haas, 3 October 1916 252 263.To Hans Albert Einstein, 13 October 1916 252 264.To Werner Weisbach, 14 October 1916 253 265.To Carl Kormann, 15 October 1916 254 266.From Carl Kormann, 16 October 1916 254 267.To Wilhelm Wien, 17 October 1916 255 268.To Paul and Tatiana Ehrenfest, 18 October 1916 255 269.To Paul Ehrenfest, 24 October 1916 256 270.To Michele Besso, 31 October 1916 257 271.To Hans Albert Einstein, after 31 October 1916 259 272.From Willem de Sitter, 1 November 1916 260 273.To Willem de Sitter, 4 November 1916 261 274.To Wilhelm Ostwald, 6 November 1916 262 275.To Paul Ehrenfest, 7 November 1916 263 276.To Hendrik A. Lorentz, 13 November 1916 263 277.To Paul Ehrenfest, 17 November 1916 265 278.To Hermann Weyl, 23 November 1916 265 279.To Hans Albert Einstein, 26 November 1916 266 280.To Wilhelm Rontgen, 29 November 1916 267 281.Rom Gunnar Nordstrom, 30 November 1916 267 282.To Paul Ehrenfest, 4 December 1916 269 283.From Michele Besso, 5 December 1916 270 284.To Constantin Caratheodory, 10 December 1916 273 285.From Constantin Caratheodory, 16 December 1916 273 286.To Hermann Weyl, 3 January 1917 277 287.To Hans Albert Einstein, 8 January 1917 278 288.From Alexander Moszkowski, 18 January 1917 278 289.To Georg Nicolai, ca. 22 January 1917 279 290.To Willem de Sitter, 23 January 1917 279 291.To Wladyslaw Natanson, 28 January 1917 280 292.From Alexander Moszkowski, 1 February 1917 280 293.To Willem de Sitter, 2 February 1917 281 294.To Paul Ehrenfest, 4 February 1917 282 295.From Max Planck, 4 February 1917 282 296.From Moritz Schlick, 4 February 1917 283 297.To Moritz Schlick, 6 February 1917 284 298.To Paul Ehrenfest, 14 February 1917 285 299.To Walter Dallenbach, after 15 February 1917 285 BOOKID300. To Erwin Freundlich, 18 February 1917 or later 287 301.To Kathia Adler, 20 February 1917 288 302.From Georg Nicolai, 26 February 1917 288 303.To Georg Nicolai, 28 February 1917 290 304.To Georg Nicolai, after 28 February 1917 291 305.To Walther Rathenau, 8 March 1917 291 306.To Michele Besso, 9 March 1917 292 307.From Friedrich Adler, 9 March 1917 294 308.To Michele Besso, after 9 March 1917 295 309.To Heinrich Zangger, 10 March 1917 298 310.To Heinrich Zangger, after 10 March 1917 299 311.To Willem de Sitter, before 12 March 1917 301 312.From Willem de Sitter, 15 March 1917 302 313.From Willem de Sitter, 20 March 1917 303 314.To Moritz Schlick, 21 March 1917 305 315.From Hendrik A. Lorentz, 22 March 1917 306 316.From Friedrich Adler, 23 March 1917 307 317.To Willem de Sitter, 24 March 1917 308 318.From Max von Laue, 24 March 1917 310 319.To Felix Klein, 26 March 1917 311 320.To Moritz Schlick, 1 April 1917 312 321.From Willem de Sitter, 1 April 1917 312 322.To Hendrik A. Lorentz, 3 April 1917 313 323.To Felix Klein, 4 April 1917 314 324.To Friedrich Adler, 13 April 1917 315 325.To Willem de Sitter, 14 April 1917 315 326.From Otto Neurath, 15 April 1917 316 327.From Willem de Sitter, 18 April 1917 317 328.To Felix Klein, 21 April 1917 318 329.From Friedrich Adler, 25 April 1917 319 330.To Eduard Hartmann, 27 April 1917 320 331.To Michele Besso, 29 April 1917 321 332.To Emil Beck, 30 April 1917 323 333.From Michele Besso, 4 May 1917 323 334.From Michele Besso, 5 May 1917 324 335.To Michele Besso, 7 May 1917 325 336.From Friedrich Adler, 7 May 1917 325 337.From Walther Rathenau, 10-11 May 1917 327 338.To Paul Mamroth, 11 May 1917 329 339.To Michele Besso, 13 May 1917 329 340.To Michele Besso, 15 May 1917 330 341.To David Hilbert, 19 May 1917 331 342.From Heinrich Zangger, 20 May 1917 331 343.To Moritz Schlick, 21 May 1917 333 344.To Paul Ehrenfest, 25 May 1917 334 345.From Max Planck, 26 May 1917 334 346.From Gustav Mie, 30 May 1917 335 347.From Wilhelm Wien, 1 June 1917 336 348.To Gustav Mie, 2 June 1917 336 349.To Wilhelm Wien, 2 June 1917 337 350.To Paul Ehrenfest, 3 June 1917 338 351.To Willem de Sitter, 14 June 1917 340 352.From Paul Ehrenfest, 14 June 1917 341 353.From Erwin Freundlich, 17 June 1917 342 354.From Max von Laue, 18 June 1917 344 355.From Willem de Sitter, 20 June 1917 344 356.To Willem de Sitter, 22 June 1917 346 357.To Michele Besso, 24 June 1917 347 358.From Max von Laue, 25 June 1917 348 359.To Willem de Sitter, 28 June 1917 348 360.From Friedrich Adler, 4 July 1917 349 361.From Hans Thirring, 11-17 July 1917 350 362.To Paul Ehrenfest, 22 July 1917 352 363.To Willem de Sitter, 22 July 1917 353 364.From Franz Selety, 23 July 1917 353 365.To Heinrich Zangger, 29 July 1917 361 366.To Willem de Sitter, 31 July 1917 362 367.To Michele and Anna Besso-Winteler, 1 August 1917 362 368.To Tullio Levi-Civita, 2 August 1917 363 369.To Hans Thirring, 2 August 1917 365 370.To Willem de Sitter, 8 August 1917 366 371.To Michele Besso, 15 August 1917 366 372.To Paul Seippel, 19 August 1917 367 373.From Romain Rolland, 21 August 1917 367 374.To Romain Rolland, 22 August 1917 368 375.From Tullio Levi-Civita, 23 August 1917 369 376.From Romain Rolland, 23 August 1917 371 377.To Michele Besso, 3 September 1917 372 378.To Erwin Freundlich, 3 September 1917 372 379.From Adolf von Harnack, 12 September 1917 373 380.To Wladyslaw Natanson, 14 September 1917 373 381.To Michele Besso, 22 September 1917 374 382.From Gunnar Nordstrom, 22 September 1917 374 383.To Edouard Guillaume, 24 September 1917 381 384.To Walter Schottky, 26 September 1917 381 385.From Edouard Guillaume, 3 October 1917 382 386.To Adolf von Harnack, 6 October 1917 383 387.To Edouard Guillaume, 9 October 1917 384 388.To Walter Schottky, 10 October 1917 385 389.From Adolf von Harnack, 10 October 1917 385 390.To Hans Albert Einstein, 15 October 1917 386 391.To Werner Weisbach, 15 October 1917 387 392.From Edouard Guillaume, 17 October 1917 387 393.Rom Gunnar Nordstrom, 23 October 1917 388 394.To Edouard Guillaume, 24 October 1917 391 395.From Franz Selety, 29 October 1917 391 396.To Edgar Meyer, 30 October 1917 401 397.From Zofija Smoluchowska-Baraniecka, 8 November 1917 402 398.From Rudolf Forster, 11 November 1917 403 399.To Paul Ehrenfest, 12 November 1917 407 BOOKID400. To Rudolf Forster, 16 November 1917 407 401.From Hans Thirring, 3 December 1917 409 402.From Erwin Freundlich, 4 December 1917 411 403.To Heinrich Zangger, 6 December 1917 411 404.From Erwin Freundlich, 6 December 1917 413 405.To Hans Thirring, 7 December 1917 414 406.To Hans Albert Einstein, 9 December 1917 416 407.To Gustav Mie, 14 December 1917 417 408.To Felix Klein, 15 December 1917 418 409.To Wilhelm von Siemens, before 16 December 1917 418 410.From Gustav Mie, 17 December 1917 419 411.From Heinrich Zangger, 17 December 1917 419 412.From Heinrich Zangger, 17 December 1917 420 413.To Hendrik A. Lorentz, 18 December 1917 421 414.From Max von Laue, 19 December 1917 422 415.To Otto Marx, 22 December 1917 423 416.To Gustav Mie, 22 December 1917 423 417.To Hans Albert Einstein, 24 December 1917 424 418.From Walther Nernst, 25 December 1917 424 419.From Michele Besso, 27 December 1917 425 420.From Rudolf Forster, 28 December 1917 425 421.To Gustav Mie, 29 December 1917 431 422.From Mercur Aircraft Company, 29 December 1917 431 423.From Max Planck, 29 December 1917 432 424.From Heinrich Zangger, 31 December 1917 432 425.To Wilhelm von Siemens, 4 January 1918 433 426.From Wilhelm Schweydar, 4 January 1918 433 427.From Wilhelm Schweydar, 4 January 1918 435 428.To Michele Besso, 5 January 1918 436 429.To Roland von Eotvos, 5 January 1918 437 430.From Karl Scheel, 5 January 1918 438 431.From Hugo A. Kruss, 6 January 1918 439 432.From Pieter Zeeman, 8 January 1918 439 433.From Hugo A. Kruss, 9 January 1918 440 434.From Gustav Muller, 9 January 1918 440 435.To Hugo A. Kruss, 10 January 1918 441 436.From Rudolf Humm, 15 January 1918 442 437.To Pieter Zeeman, 16 January 1918 444 438.To Erwin Freundlich, before 17 January 1918 444 439.To Rudolf Forster, 17 January 1918 445 440.To Rudolf Humm, 18 January 1918 447 441.From Wilhelm von Siemens, 21 January 1918 448 442.To Hans Albert Einstein, 25 January 1918 449 443.From Roland von Eotvos, 27 January 1918 450 444.From Heinrich Zangger, 28 January 1918 452 445.From Ritz Haber, before 29 January 1918 453 446.To Fritz Haber, 29 January 1918 454 447.From Max von Laue, 30 January 1918 454 448.To Max Planck, after 30 January 1918 455 449.To Mileva Einstein-Maric, 31 January 1918 456 450.To Roland von Eotvos, 31 January 1918 457 451.To Hugo A. Kruss, 31 January 1918 457 452.From Cornelia and Gunnar Nordstrom, 31 January 1918 458 453.To Arnold Sommerfeld, 1 February 1918 459 454.To Arnold Sommerfeld, after 1 February 1918 460 455.From Ernst Troeltsch, 4 February 1918 461 456.From Gustav Mie, 5 February 1918 461 457.From Mileva Einstein-Maric, after 6 February 1918 465 458.From Ernst Troeltsch, 7 February 1918 465 459.To Hedwig Born, 8 February 1918 466 460.To Gustav Mie, 8 February 1918 467 461.From Emil Warburg, 8 February 1918 470 462.From Max Planck, 13 February 1918 471 463.From Rudolf Forster, 16 February 1918 472 464.From Arnold Sommerfeld, 16 February 1918 475 465.From Gustav Mie, 17-19 February 1918 475 466.From Max von Laue, 18 February 1918 480 467.To Rudolf Forster, 19 February 1918 481 468.From Hermann Coenen, 21 February 1918 482 469.From Heinrich Zangger, 21 February 1918 483 470.To Gustav Mie, 22 February 1918 484 471.To Karl Camillo Schneider, 24 February 1918 487 472.From Hermann Weyl, 1 March 1918 487 473.From Heinrich Zangger, 4 March 1918 488 474.To Anna Besso-Winteler, after 4 March 1918 489 475.From Anna Besso-Winteler, after 4 March 1918 490 476.To Hermann Weyl, 8 March 1918 491 477.From Arnold Sommerfeld, 8 March 1918 492 478.From Karl Scheel, 9 March 1918 492 479.From Max Planck, 12 March 1918 493 480.To Felix Klein, 13 March 1918 494 481.From Karl Camillo Schneider, 16 March 1918 496 482.From Karl Camillo Schneider, after 16 March 1918 496 483.To Mileva Einstein-Maric, 17 March 1918 497 484.To Mileva Einstein-Maric, after 17 March 1918 497 485.From Rudolf Forster, 19 March 1918 498 486.From Max Planck, 19 March 1918 501 487.From Felix Klein, 20 March 1918 503 488.From Gustav Mie, 21 March 1918 508 489.From Elisabeth Warburg, 21 March 1918 510 490.From Georg Helm, 22 March 1918 511 491.To Otto H. Warburg, 23 March 1918 512 492.To Felix Klein, 24 March 1918 512 493.To Gustav Mie, 24 March 1918 514 494.From Paul Ehrenfest, 27 March 1918 515 495.From Friedrich Kottler, 30 March 1918 516 496.From Romeo Wankmuller, 30 March 1918 521 497.From Hermann Weyl, 5 April 1918 521 498.To Hermann Weyl, 6 April 1918 522 499.To Hermann Weyl, 8 April 1918 522 BOOKID500. To Felix Klein, 10 April 1918 523 501.From Willem de Sitter, 10 April 1918 523 502.To Hugo A. Kruss, before 11 April 1918 524 503.To David Hilbert, 12 April 1918 525 504.From Wilhelm Schweydar, 14 April 1918 526 505.To Mileva Einstein-Maric, before 15 April 1918 527 506.To Willem de Sitter, 15 April 1918 528 507.To Hermann Weyl, 15 April 1918 529 508.From Hugo A. Kruss, 15 April 1918 530 509.From Hermann Weyl, 15 April 1918 530 510.From Margarete Hamburger, 16 April 1918 531 511.To Hermann Weyl, 18 April 1918 531 512.To Hermann Weyl, 19 April 1918 532 513.To Hermann Weyl, 19 April 1918 534 514.To Heinrich Zangger, 22 April 1918 535 515.To Mileva Einstein-Maric, 23 April 1918 535 516.To Auguste Hochberger, before 24 April 1918 537 517.To Auguste Hochberger, before 24 April 1918 537 518.From Felix Klein, 25 April 1918 538 519.To Mileva Einstein-Maric, 26 April 1918 538 520.To Hans Albert Einstein, after 26 April 1918 539 521.To David Hilbert, before 27 April 1918 540 522.To David Hilbert, before 27 April 1918 541 523.To Felix Klein, 27 April 1918 541 524.From David Hilbert, 27 April 1918 543 525.From Hermann Weyl, 27 April 1918 544 526.From Hermann Weyl, 28 April 1918 544 527.From Marga Planck, 30 April 1918 545 528.To Paul Ehrenfest, 1 May 1918 545 529.To Hermann Weyl, 1 May 1918 546 530.From David Hilbert, 1 May 1918 547 531.From Ernst Troeltsch, 1 May 1918 548 532.From Gustav Mie, 6 May 1918 549 533.To Mileva Einstein-Maric, before 8 May 1918 554 534.From Paul Ehrenfest, 8 May 1918 555 535.To Hermann Weyl, 10 May 1918 556 536.To Ilse Einstein, 12 May 1918 556 537.To Georg Nicolai, 12 May 1918 557 538.From Max Wien, 12 May 1918 557 539.From Charlotte Weigert, 15 May 1918 558 540.From Felix Klein, 18 May 1918 559 541.From Georg Nicolai, 18 May 1918 560 542.From Max Wien, 18 May 1918 561 543.To Felix Klein, 19 May 1918 562 544.From Hermann Weyl, 19 May 1918 562 545.Ilse Einstein to Georg Nicolai, 22 May 1918 564 546.To Mileva Einstein-Maric, 23 May 1918 566 547.From Zionist Association of Germany, 23 May 1918 567 548.To David Hilbert, 24 May 1918 568 549.To Felix Klein, 28 May 1918 569 550.From Max von Laue, 29 May 1918 569 551.To Hermann Weyl, 31 May 1918 570 552.From Felix Klein, 31 May 1918 571 553.To Arnold Sommerfeld, 1 June 1918 573 554.From Felix Klein, 1 June 1918 574 555.From Arnold Sommerfeld, after 1 June 1918 575 556.To Felix Klein, before 3 June 1918 576 557.To Mileva Einstein-Maric, 4 June 1918 579 558.To Paul Ehrenfest, 5 June 1918 580 559.From Anschutz and Company, 6 June 1918 580 560.To Adolf Kneser, 7 June 1918 581 561.To Felix Klein, 9 June 1918 581 562.Divorce Agreement, 12 June 1918 584 563.From Hugo A. Kruss, 13 June 1918 585 564.From Walter Dallenbach, 15 June 1918 585 565.To Walter Dallenbach, after 15 June 1918 591 566.From Felix Klein, 16 June 1918 592 567.To Felix Klein, 20 June 1918 594 568.From Anschutz and Company, 21 June 1918 595 569.To Walter Schottky, 23 June 1918 596 570.To Max Born, 24 June 1918 596 571.To Heinrich Zangger, 24 June 1918 597 572.To Michele Besso, before 28 June 1918 598 573.To Eduard Einstein, before 28 June 1918 599 574.To Karl Scheel, 29 June 1918 600 575.To Max Born, after 29 June 1918 600 576.To Hans Albert Einstein, after 29 June 1918 601 577.From Peter Debye, 2 July 1918 602 578.To Max Planck, after 2 July 1918 604 579.To Hermann Weyl, 3 July 1918 604 580.To Max Born, after 3 July 1918 605 581.From Felix Klein, 5 July 1918 606 582.From Friedrich Adler, 6 July 1918 607 583.From Adolf Kneser, 7 July 1918 608 584.From Max Planck, 8 July 1918 609 585.To Mileva Einstein-Maric, before 9 July 1918 609 586.To Michele Besso, 9 July 1918 610 587.From Anschutz and Company, 12 July 1918 610 588.From Felix Klein, 15 July 1918 611 589.To Felix Klein, 22 July 1918 612 590.From Hedwig and Max Born, 28 July 1918 612 591.To Michele Besso, 29 July 1918 613 592.To Arnold Sommerfeld, between 1 August and 1 November 1918 614 593.To Hedwig and Max Born, 2 August 1918 615 594.To Friedrich Adler, 4 August 1918 616 595.To Walter Dallenbach, 8 August 1918 620 596.From Friedrich Adler, 9 August 1918 621 597.To Heinrich Zangger, before 11 August 1918 622 598.From Heinrich Zangger, before 11 August 1918 623 599.From Edgar Meyer, 11 August 1918 624 BOOKID600. From Theodor Rosenheim, 11 August 1918 625 601.To Heinrich Zangger, 16 August 1918 626 602.To Edgar Meyer, 18 August 1918 627 603.From Hermann Anschutz-Kaempfe, 19 August 1918 628 604.To Michele Besso, 20 August 1918 629 605.To Felix Ehrenhaft, 20 August 1918 631 606.To Hermann Anschutz-Kaempfe, 22 August 1918 632 607.To Michele Besso, 28 August 1918 633 608.To Paul Ehrenfest, 4 September 1918 633 609.From Peter Debye, 4 September 1918 634 610.Rom Max Frischeisen-Kohler, 5 September 1918 635 611.From Kurt Hiller, 7 September 1918 636 612.To Michele Besso, 8 September 1918 637 613.To Kurt Hiller, 9 September 1918 638 614.From Edgar Meyer, 12 September 1918 639 615.To Lise Meitner, before 14 September 1918 640 616.To Lise Meitner, 14 September 1918 641 617.To Ernst Trendelenburg, 16 September 1918 641 618.To Eduard Study, 17 September 1918 642 619.From Hermann Weyl, 18 September 1918 642 620.From Friedrich Adler, 20 September 1918 644 621.To Paul and Maja Winteler-Einstein, and Pauline Einstein, 23 September 1918 646 622.From Eduard Study, 23 September 1918 647 623.From Hans Vaihinger, 23 September 1918 648 624.To Eduard Study, 25 September 1918 651 625.To Paul Ehrenfest, 27 September 1918 653 626.To Hermann Weyl, 27 September 1918 654 627.From Eduard Study, 27 September 1918 655 628.To Friedrich Adler, 29 September 1918 658 629.To Friedrich Adler, 30 September 1918 660 630.From Felix Ehrenhaft, 3 October 1918 661 631.To Pauline Einstein, 8 October 1918 664 632.From Friedrich Adler, 12 October 1918 664 633.To Edgar Meyer, after 12 October 1918 666 634.To Hans Albert Einstein, 17 October 1918 669 635.To Nobel Committee for Physics of the Royal Swedish Academy of Sciences, before 18 October 1918 669 636.To Friedrich Adler, 20 October 1918 670 637.From Edgar Meyer, 20 October 1918 671 638.To Felix Klein, 22 October 1918 672 639.From Hans Muhsam, 24 October 1918 673 640.From Max Planck, 26 October 1918 683 641.To Felix Klein, 28 October 1918 684 642.To Lise Meitner, 29 October 1918 685 643.From Paul Bernays, 2 November 1918 685 644.To Edgar Meyer, 4 November 1918 686 645.From Felix Klein, 5 November 1918 687 646.To Felix Klein, 8 November 1918 688 647.To Mileva Einstein-Maric, ca. 9 November 1918 689 648.From Heinrich Zangger, ca. 10 November 1918 690 649.From Michele Besso, 10 November 1918 690 650.From Felix Klein, 10 November 1918 692 651.To Pauline Einstein, 11 November 1918 693 652.To Paul and Maja Winteler-Einstein, 11 November 1918 693 653.To Leo Arons, 12 November 1918 or later 694 654.To Svante Arrhenius, 14 November 1918 694 655.To Ludwig Quidde, 15 November 1918 695 656.From Ludwig Quidde, 16 November 1918 695 657.From Hermann Weyl, 16 November 1918 696 658.To Arnold Berliner, before 19 November 1918 697 659.From Paul Bernays, 22 November 1918 697 660.To Carl Heinrich Becker, 25 November 1918 699 661.To Hermann Weyl, 29 November 1918 699 662.From Arnold Sommerfeld, 3 December 1918 701 663.To Michele Besso, 4 December 1918 703 664.To Paul Ehrenfest, 6 December 1918 704 665.To Arnold Sommerfeld, 6 December 1918 705 666.From Zionist Association of Germany, 9 December 1918 706