Some years ago I was working on some forms which were vase forms with a fairly narrow base, and it was after [Hans] Coper had died that I saw an exhibition of his, a catalogue from an exhibition, and he was showing some forms which were made by cutting and joining a lot of different parts together to create what he called a spade form, which you can imagine looks a little bit like a shovel upside down.

If [Bernard Leach] didn't like the drawing, he'd X it out and do another one and change the form a little bit. And when he was all done, he would stuff these pieces of paper in his pocket and go off to the pottery, and when he wanted to make pots, he would then take these out and he'd begin to produce the pot that he had designed on paper in front of us.

Eventually I gave up teaching at the St. Paul Gallery because of disagreements with the philosophy of that museum, and I got a job at the University of Minnesota, which was very fortunate because it was a part-time job and that gave us a great deal of time in our studio to work together and to make the pots we wanted to make.

We were more fortunate than most, because [Bernard] Leach had been in America on a lecture tour in 1950, and we made arrangements to travel from America back to England with him on the same boat. It was a very slow boat. I think it took us about seven days to cross the Atlantic.

Every day we'd trudge up the hill - it was a three-quarter-mile walk up this steep hill to the Leach Pottery, and we would take our lunch with us and generally, I guess, make a nuisance of ourselves.

Other thing about [Field Museum of Natural History] which inspired was that in a group of pots you wouldn't see a single example of this kind of pot. You would perhaps see a case with 20 different examples. So you realize that these pots could be repeated again and again, and each time there would be minor variations in them.

I was a very hard-edged geometric painter, strongly influenced by [Piet] Mondrian and [Theo] van Doesburg and that sort of thing.