he was a chemist himself, or a physicist, working on similar sorts of problems, and i wrote to him and said was he interested in looking at one of my molecules, and he wrote back and said he was very interested because it was, in fact, as i'd thought, a rather intriguing next step in our understanding and we got together with the canadian group in ottowa to try and set up a programme for observing these particular types of molecule in interstellar space.