 Particularly memorable was the visit in 1971 after the Chinese group themselves independently solved the structure of insulin, later than Hodgkin's team but to a higher resolution.During the subsequent three years, 1972–1975, when she was President of the International Union of Crystallography she was unable to persuade the Chinese authorities, however, to permit the country's scientists to become members of the Union and attend its meetings.Her relations with a supposed scientist in another "People's Democracy" had less happy results.