A group of eminent Australian scholars returned from overseas to join the university, including Sir Howard Florey (co-developer of medicinal penicillin), Sir Mark Oliphant (a nuclear physicist who worked on the Manhattan Project), and Sir Keith Hancock (the Chichele Professor of Economic History at Oxford). The group also included a New Zealander, Sir Raymond Firth (a professor of anthropology at LSE), who had earlier worked in Australia for some years. Economist Sir Douglas Copland was appointed as ANU's first Vice-Chancellor and former Prime Minister Stanley Bruce served as the first Chancellor. ANU was originally organised into four centres—the Research Schools of Physical Sciences, Social Sciences and Pacific Studies and the John Curtin School of Medical Research.