Letter from John J Manley, Daubeny Laboratory, Magdalen College, Oxford, to The Secretaries, The Royal Society Informs that he has written a short paper dealing with the purification of phosphorus pentoxide for use in connection with the production of high vacua, expressing a wish to have it presented before the Royal Society with a view of having it published in the Proceedings of the Royal Society. Enquires if the Secretary would be willing to communicate his paper. 15 March 1913