8 7 4 C A L E N D A R O F A B S T R A C T S N O V E M B E R 1 9 2 8 759. To H. von dem Borne [Berlin,] 25 November 1928 Both theory and observation prove that the deflection of light by the sun is too small to be observed with the apparatus Borne proposes. TLC. [45 541]. 760. To Hans Albert Einstein [Berlin,] 25 November [1928] Welcomes them for the third day of Christmas. The doctor said he may return to a nor- mal lifestyle. The scientific idea he had during their last visit is developing well. Advises against embarking on a long trip by motorcycle because of the cold and because it is un- clear where it could be stored in Berlin. Offers their piano to him. ALS. [75 981]. 761. To Otto Forst de Battaglia [Berlin,] 25 November 1928 Sends a few lines as a contribution to Forst de Battaglia 1930 (see Doc. 327). 762. To Raissa Frank [Berlin,] 25 November 1928 In reply to Abs. 755, asks not to add his name among the appeal’s signatories. TLC. [35 051]. 763. To Franz Sandgathe [Berlin,] 25 November 1928 In reply to Abs. 752, no useful ideas can be found in Sandgathe’s manuscript. By intro- ducing an absolute time, the theory of relativity loses its logical support. A discussion would distract him from his own productive work. TLC. [25 250]. 764. To Wissenschaftliches Korrespondenzbüro “Akademia” [Berlin,] 25 November 1928 In reply to Abs. 737, explains that the KWIP is not a genuine institute but a small fund to support research. Warmly welcomes the enterprise because it satisfies an urgent need. Ready to give information on prospective physicist collaborators. TLC. [45 372]. 765. To Heinrich Zangger [Berlin,] 25 November 1928 Feels quite well. Nothing has come of the house. Happy with Eduard. Has been working on a giant theory since the summer. Not sure of its success, but it is fun. Hans Albert will come for Christmas. The bad influence of his wife can be gathered from his letters. AKS. [86 556]. 766. From Fernand Mayence Louvain, 25 November 1928 Having returned from a mission in Syria, found Doc. 302, which shows AE’s apprecia- tion for the brochure Mayence 1928. Happy to learn that AE understood his intention. His colleagues at German universities sent insulting letters. Requests permission to pub- lish AE’s opinion. ALS. [34 567]. 767. From Arnold (Larus) Rubin [New York,] 25 November 1928 Two members of the Einstein Group were killed and another injured in a car accident. Thanks for the nice message (nonextant, see Abs. 436). Dr. Eron gave a talk on AE and his work. Asks for a portrait for their room. ALS. [46 086]. 768. Elsa Einstein to Hans Albert Einstein and Frieda Knecht  [Berlin, 25 November 1928] Expects them on the third day of Christmas. Will see to a variety of activities. ALS. [75 982]. 769. From Melania Serbu Braşov, 26 November 1928 Read what AE proposed in Abs. 680 several times, and it dawned on her gradually. Ad- mires the combination of mathematics and philosophy by AE’s genius. Deliberates on the role of observer, on the finite but unlimited universe, on the fundamental unity of gravitation and electromagnetism. Thanks her “big brother” for helping her achieve a clearer understanding. Sends her photo. ALS. [27 199]. 770. From Leon Steinig [Geneva] 26 November 1928 Thanks for another recommendation for a post at the Secretariat of the League of Na- tions sent to President E. Drummond (nonextant). Inquires whether a reply has arrived. ALS. [48 507].