8 5 6 C A L E N D A R O F A B S T R A C T S J U N E 1 9 2 8 570. From Gilbert Murray London, 29 May 1928 Sorry for not seeing AE in Paris. Hopes AE’s heart condition is not very serious. TLS. [34 851]. 571. From Curt Schwarz [Charlottenburg,] 29 May 1928 A vigorous bowel movement always follows an unexpected pleasure, but has never suc- ceeded in emptying himself so well after hearing of AE’s recovery. Managed to integrate the equations of gravitation. They are of the type “movable Vierbein.” ALS. [48 448]. 572. Electromagnetic Device for Producing an Oscillatory Motion  [Berlin,] 31 May 1928 AE and Szilard apply for a patent on an invention according to which two movable elec- tric conductors exert electrodynamic force on each other like rotor and stator of a one- phase synchronous motor, that is, they accelerate each other always in the direction of their actual motion. The reversal of motion without reversing the direction of the current in the primary circuit is accomplished by an additional force, for example, by a spring. Reichs-patentamt Nr. 562 040. PD. [90 027]. 573. To Naoyasu Sata [Berlin,] 31 May 1928 Happy to learn that Sata will visit him. Sorry for being ill but hopes to get better by the fall. TLC. [48 271] 574. To Seitaro Suzuki [Berlin,] 31 May 1928 In reply to Abs. 542, does not recommend publication of Suzuki’s paper because the possibility discussed in it cannot happen in reality. The Lorentz transformation of a light quantum leads to infinitely large energy with respect to the system of reference conse- quently an upper limit to its energy and its frequency cannot be given. Awaits further instructions. TLC. [25 295]. 575. From Leo Kohn London, 31 May 1928 Requests wire authorization for Weizmann to represent AE in voting. Tgm. [36 1047]. 576. To Leo Kohn [Berlin, 31 May 1928] In reply to Abs. 575, authorizes Weizmann to represent him in the voting. Tgm. [95 730]. 577. From Prussian Academy of Sciences Berlin, 31 May 1928 Sends copies of two documents formulated by Ernst Heymann that were sent to the ministry. ALS. [45 373]. 578. From S. L. Schor Czartkow, 31 May 1928 Hopes AE will honor the cosmological truths revealed in the Hebrew Bible, which can now be confirmed using modern instruments. His four sons and daughter were dispersed after the war, and his wife died a year ago. ALS. [48 405]. 579. From Leo Kohn London, 1 June 1928 At Felix M. Warburg’s request, sends transcriptions of AE’s three letters to the BOGHU and to Ch. Weizmann in the form in which they were presented to Warburg in order that AE will be able to understand the references to page numbers that Warburg is comment- ing on in his letter to AE (Doc. 207). TLS. [36 1040]. 580. From Leo Kohn [London, 1 June 1928] Has deleted a sentence from Doc. 203 (see there) to avoid offending E. Landau. Sent to- gether with Abs. 579, with the note “PRIVAT” at the top. ALS. [36 1042]. 581. From Reinhold Schairer and Hans Simons Dresden, 1 June 1928 Send history and program of Abraham-Lincoln-Stiftung. Request a few proposals for promising persons in need of financial security for their training and development. TL. [47 506]. 582. From Lucien Lévy-Bruhl Paris, 3 June 1928 Is happy to learn that AE is interested in his book (see Abs. 482). Shares with AE the opinion that “primitive mentality” underlies our own mentality. The research in this field