Copy letter from Herbert Rix, to Percy Carlyle Gilchrist, Fellow of the Royal Society 'Dear Sir, Inclosed herewith I send you a list of the addresses for which you ask in your letter of yesterday's date. Yours faithfully, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society] H.L.F. von Helmholtz, Physikalisch-technische Reichsanetalt, Marchstrasse, Charlottenburg, Berlin Academie des Sciences, Palais de l'Institut, Paris Academie Royal des Sciences, Palais des Academies, Brussels Konigliche Preussische Akademie der Wissenschaften, Berlin Kaiserliche Akademie der Wissenschaftenm Universitatsplatz, 2, Vienna' 18 May 1894