xx LIST OF TEXTS 280. From Willem Julius, 26 August 1911 281. To Erwin Freundlich, 1 September 1911 282. From Michele Besso, before 11 September 1911 283. To Michele Besso, 11 September 1911 284. From Willem Julius, 17 September 1911 285. From Pauline Einstein, 18 September 1911 286. To Heinrich Zangger, 20 September 1911 287. To Erwin Freundlich, 21 September 1911 288. To Willem Julius, 22 September 1911 289. From Willem Julius, 27 September 1911 290. From Mileva Einstein-Maric, 4 October 1911 291. Heinrich Zangger to Ludwig Forrer, 9 October 1911 292. From Willem Julius, 11 October 1911 293. To Hans Tanner, 13 October 1911 294. From Ludwig Hopf, 13 October 1911 295. To Willem Julius, 18 October 1911 296. To Michele Besso, 21 October 1911 297. To Heinrich Zangger, 22 October 1911 298. From Pauline Einstein, 22 October 1911 299. From Michele Besso, 23 October 1911 300. To Mileva Einstein-Maric, 28 October 1911 301. To Mileva Einstein-Maric, 29 October 1911 302. To Willem Julius, 1 November 1911 303. To Heinrich Zangger, 7 November 1911 304. To Willem Julius, 15 November 1911 305. To Heinrich Zangger, 15 November 1911 306. To Willem Julius, 16 November 1911 307. To Marcel Grossmann, 18 November 1911 308. To Heinrich Zangger, 20 November 1911 309. To Heinrich Zangger, 20 November 1911 310. From Willem Julius, 20 November 1911 311. To Willem Julius, 22 November 1911 312. To Ernest Solvay, 22 November 1911 313. To Hendrik A. Lorentz, 23 November 1911