Unpublished paper, 'On a new method of determining the vapour pressures of solutions' by E B H [Edward Bruce Herschel] Wade Wade writes: 'On a previous occasion I gave some boiling points of salt solutions under atmospheric pressure. As the dimensions of that abstract made a full account of the experimental method impossible, I have been given this opportunity, by the courtesy of the Council of the Royal Society, of describing the apparatus and procedure by which those results were obtained.' He shares details of errors in his original methods, the standardisation of apparatus, the new method employed and the results of the new experiments. Annotations in pencil and ink throughout. Subject: Physics / Chemistry Received 23 February 1897. Read 13 May 1897. Communicated by J J [Joseph John] Thomson. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 62 of the Proceedings of the Royal Society as 'On a new method of determining the vapour pressures of solutions'. 1897