C A L E N D A R O F A B S T R A C T S 1 9 2 6 9 0 9 Jewish Social Democrats against Zionism. Requests AE’s signature on the invitation. TLS. [45 339]. 339. From Ernst Pohlhausen Rostock, 2 March 1926 As of 1 April, he will become the successor of the deceased Hans von Mangoldt in Danzig. His position in Rostock is to be filled with younger candidates. His deserving colleague Walter Schottky should be promoted from his position as Extarordinarius. Re- quests a reference for Schottky. TLS. [21 551]. 340. From Richard Courant Göttingen, 3 March1926 Invites AE to lecture at the planned Riemann celebrations, organized by the Göttingen Gesellschaft der Wissenschaften and the Göttingen Mathematische Gesellschaft, 15–17 September 1926, on the development of the problem of space and of spacetime since Riemann. They desire to make this again the first truly international meeting. English and Italian participants have already announced their presence. They hope distinguished French participants would announce themselves too, although they are not issuing for- mal invitations. Wonders what could be done regarding the attacks in the newsletter of the Hochschulverband. Max Born is returning from the United States in April. Hedwig Born is still recuperating near Frankfurt. Hilbert is doing well in Arosa. TLS. [43 491]. 341. From Georges Oprescu Geneva, 3 March 1926 Wishes to know whether 15 July is a good date for the opening of the eighth session of the ICIC in Geneva. TLS. [34 922]. 342. From Felix M. Warburg New York, 3 March 1926 Thanks for letter of 18 February (see Doc. 197). Will be unable to travel to Europe, “one of the main reasons being that the Joint Campaign had to be postponed until the month of April, as the Jewish public is still too much appealed to by the different efforts of the Zionist money gathering organization.” Is in contact with Ch. Weizmann. TLS. [36 908]. 343. To Ministry of Education of Panama [Berlin, 4 March 1926] Letter of recommendation. Auction catalog listing only. ALS. [76 909]. 344. From Gabriel Wolf Berlin, 4 March 1926 He has written two letters regarding Kepler’s laws but has received only a card in reply. Believes he has found a universal law of motion of the universe that dispenses with Newton’s laws. Requests a personal meeting or telephone conversation. TLS. [31 758]. 345. From Richard Courant Göttingen, 5 March 1926 Owing to conflicts with the meeting of the GDNÄ in Düsseldorf and the Mechanics Congress in Zurich, the planned Riemann celebration (see Abs. 340) is being postponed, provisionally to the end of April 1927. TKS. [43 492]. 346. From Jacob de Vos van Steenwijk Brussels, 5 March 1926 On behalf of H. A. Lorentz, invites AE to session of subcommittee on International Bureau of Meteorology on 29 and 30 March at 10 A.M. and 3 P.M. ALS. [34 931]. 347. From Chaim Weizmann Jaffa, 5 March 1926 Recommends S. Krichewsky as candidate for Hebrew University. He is serious, comes from a very respected and long-established family. Weizmann will be in Palestine for an- other fourteen days before returning to London. ALS. [33 381].