C A L E N D A R O F A B S T R A C T S 1 9 2 6 9 1 3 special cases, such as in empty space, where current density becomes zero. Request sup- port in publishing their manuscript in a physics journal. ALS. [13 371]. 375. From S. Krichewsky Cairo, 21 March 1926 As a mathematician, meteorologist, and statistician living in Palestine since 1897, is serving as a foreign national in the Egyptian government. Will retire in 1927. Wishes to establish a meteorological observatory, incorporated either to the Physico-Mathematical Institute at the Hebrew University or the Agricultural Experiment Station of Tel-Aviv. He has studied in Giessen (see Abs. 347). TLS. [44 219]. 376. From Brandus’scher Verlag Berlin, 22 March 1926 On 22 February, the press had sent AE return postage fees and, at the author’s request, the book Das blaue Wunder by Magnus Zeller. Requests return of the book or of the postage fees. TLS. [43 352]. 377. From Eduard Sthamer, PAW Berlin, 22 March 1926 Through the intervention of the Foreign Office, the Academy has received the gold med- al of the Royal Astronomical Society awarded to AE. Deposited the medal in the Acad- emy’s vault and will hand it to AE upon his next visit. Recommends that AE send an acknowledgment to the society. TLS. [30 214]. 378. To the Royal Astronomical Society, London [Berlin, after 22 March 1926] Draft of thank you letter for being awarded the gold medal of the Royal Astronomical Society (see Abs. 377). Expresses again his thanks not only for the award but also for the society’s contribution to decisive advancement and confirmation of the theory of rel- ativity. ADft. [30 215]. 379. From Karl-Oskar Bertling Berlin, 23 March 1926 On behalf of the Amerika-Institut, would gladly assist Hans Reichenbach. Has also re- ceived an inquiry regarding a H. Reichmann, from Bremen, who has applied for a posi- tion at Columbia University, and inquires whether these are one and the same person. Inquires whether Reichenbach speaks English and whether one should contact Arthur Liebert, of the Kant Gesellschaft, who will attend the philosophy congress. TLS. [73 232]. 380. From Thomas C. Hodson London, 23 March 1926 Acknowledges receipt of letter of 20 March and of the typescript Doc. 147 and transla- tion Doc. 148. The publisher will make the correction. TLS. [1 080]. 381. From Schmul Wolf Scheps Zgierz (Lodz), 23 March 1926 After much effort has succeeded in building a perpetuum mobile which he wishes to dis- cuss with AE. ALS. [44 941]. 382. From Georges Oprescu Geneva, 24 March 1926 Communicates the program of the plenary session and its subcommittees: intellectual property, 15–16 July university relations, 17 and 19 July letters and arts, 20–22 July bibliography of economic sciences, 23–24 July plenary committee and administrative council, 26–27 July and subsequent days. TLS. [82 792]. 383. From Celia Rosenbloom Pittsburgh, 25 March 1926 Decided on 16 February 1926, in a consultation with Stephen S. Wise, to devote the sum of $500,000 for the erection of the central building of the Hebrew University of Jerusa- lem and authorized Wise to make public announcement of this at the Pittsburgh cam- paign banquet of the United Palestine Appeal. Also asks an advisory committee, whose