Letter from Michael Perkins, 5 Little Cloisters, Westminster Abbey, to the Secretaries, the Royal Society Applying for the final payment of the stipend of the Mackinnon Studentship, due on 10 October. He lists the research topics he has been working on, noting that the results will be presented in a series of publications, led by the advice of his supervisor, Sir Frederick Gowland Hopkins. 8 October 1927