C A L E N D A R O F A B S T R A C T S 1 9 2 5 8 9 5 218. From the PAW Berlin, 9 December 1925 Requests that AE forward the greetings of the PAW to H. A. Lorentz on the occasion of the fiftieth anniversary of his doctorate. TLC (GyBAW, Bestand PAW 1812–1945, II- III-141). [95 548]. 219. From Leopold Courvoisier Neubabelsberg, 12 December 1925 In reply to AE’s criticism of his earlier letter, considers in detail the effects of the motion of the telescope on his observational results. ALS. [8 418]. 220. From Gerszon Lewin Warsaw, 14 December 1925 On behalf of the central committee of the Auxilium Academicum Judaicum in Warsaw, thanks AE for his intervention that allowed the organization to receive $5,000 from the chairman of the American Joint Distribution Committee, B. Kahn. See Abs. 199. TLS. [44 024]. 221. From Paul Oppenheim Frankfurt a. M., 14 December 1925 Had news on AE from Mrs. Bolongaro Crevenna, whom AE met at the Grünberg’s table. Has discovered AE’s marginal notes in his book manuscript, which he found very useful. Encloses the third and most important part of his book. Is sending as a Christmas gift to AE and Elsa books on China written by his friend Richard Wilhelm. Asks whether AE can find out from Planck or Laue whether Reichenbach’s appointment in Berlin is being approved. Reichenbach is financially and emotionally shattered. TLS. [44 637]. 222. From Harry Sweidon Edinburgh, 15 December 1925 On behalf of the University of Edinburgh Jewish Society, thanks AE for accepting its honorary presidency and invites AE to attend a session and dinner before the end of March. ALS. [30 199]. 223. From James H. Jeans London, 16 December 1925 On behalf of the Royal Society, regrets that AE was unable to receive in person the Copley Medal, which was forwarded to AE through the German Embassy. Encloses a small money grant as a check and a receipt form. TLS. [30 208]. 224. From Heinrich Loewe to Siegfried Jacoby Berlin, 17 December 1925 Chicherin is arriving in Berlin on the morning of 19 December and soon thereafter will depart for Moscow. In his meeting with Chicherin, AE must make reference to the July 1922 court decision regarding the Ginzburg library in order to request urgently that the Soviet government comply with the decision. Requests that AE meet with Katz and Loewe himself in this matter. TLC. [121 656]. 225. From Josef Weber Leipzig, 17 December 1925 Recommends the work of Hans W. Osten to AE’s attention and announces the publica- tion of his paper Weber 1926b. ALS. [23 283]. 226. From Raschko Zaycoff Sofia, 17 December 1925 In reply to AE’s letter, has immediately begun the investigation in two directions. First a clear formulation of the basic idea and a philosophical clarification of the formal prin- ciples, and then a strict mathematical exposition of its content, namely, a vector- analytical and infinitesimal-geometric interpretation of the formulas, and a justification of the theory based on the principle of action. Will send results in early 1926. ALS. [24 164].