Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Niels Erik] Norlund, Geodaetisk Institut, Kobenhaven [Copnehagen] K, [Denmark] Proviantgaarden Gives thanks for permission to reproduce and sending the photograph of the late Prof. [Gosta] Mittag-Leffler which appeared in the Acta Mathematica. Also give thanks for the Obituary Notice for Mittag-Leffler written by Prof. N. E. Norlund. 15 May 1928