A meeting was held in 1948 in Boston (USA) when a large number of scientists of the world gathered to decide the establishment of an International Union of Crystallography. On one of the days many scientists were relaxing at a beach near Boston. Amongst those were some well-known ones, von Laue, Lawrence Bragg, Paul Ewald, Raman, Patterson, Hermann Mark, JD Bernal and others. A young lady with a camera rushed to get a photograph of von Laue wearing very brief swimming trunks. Seeing this Raman quipped to Ewald "She is trying to get the real Laue aufnahmen". Paul Ewald was so impressed with this spontaneous pun that he related this to many (including to me 6 years later when I was with him at Brooklyn Polytechnic).