During her 1954 visit to the United States, Franklin visited many virus researchers who would subsequently collaborate with her on projects involving virus structures. Barry Commoner sent her samples of a protein he called B8, to compare with the x-ray diffraction studies of TMV protein. They subsequently published several articles together. In this letter, Franklin reported on her first diffraction photos of B8, and suggested that a different preparation of the sample might give better pictures. She included a description of how she was able to concentrate the B8 solution in the absence of an ultra-centrifuge. The centrifuge was one of several items for which she repeatedly sought ARC funding.
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