A mathematician in Sheffield who was a research student, got interested in the problems of calibrating the radiocarbon curve, in the wiggles in the radiocarbon curve and got going on that. So we were also doing some more detailed studies on the calibration and the mathematics of the calibration which helped us; other people were doing, helped to clarify that. But it was around that time that Barry Cunliffe who was the first professor of archaeology in Southampton, moved to Oxford to succeed Professor Christopher Hawkes and so his chair was advertised, and I thought it might be a good idea to apply for that, and my book, "The Emergence of Civilisation", was just being published around that time, which did no harm, I think, so I got the job, so Jane and I moved down to Southampton, which meant she had to relinquish her position. At the time I'd gone off to America for that American visit to UCLA, Robert Hopper had given her the position that I was in, which I resumed when I returned, and then when he had a new lectureship he thought she would be a very suitable person to take it up, so she was, for a while, lecturing in Sheffield very successfully but obviously those are the sort of decisions you have to make, so one job was advertised in Southampton and we moved down to Southampton. But we had two children by then so it was quite a handful. I think Jane was quite happy to make that transition.