Due to lack of space at the University of Chicago, Spedding proposed to organise part of the Chemistry Division at Iowa State College in Ames, where he had colleagues who were willing to help. It was agreed that Spedding would spend half of each week in Ames, and half in Chicago. The first problem on the agenda was to find uranium for the nuclear reactor that Enrico Fermi was proposing to build. The only uranium metal available commercially was produced by the Westinghouse Electric and Manufacturing Company, using a photochemical process that produced ingots the size of a quarter that were sold for around $20 per gram. Edward Creutz, the head of the group responsible for fabricating the uranium, wanted a metal sphere the size of an orange for his experiments. With Westinghouse's process, it would have cost $200,000 and taken a year to produce.