The diary of Sir Charles Blagden
Among the Blagden papers recently acquired by the Royal Society is a considerable portion of the diary of Sir Charles Blagden himself, closely written in difficult handwriting from edge to edge of the paper on hundreds of small sheets. The complete decipherment and transcription of this diary may take a long time, if it is ever done. But it was thought that the Fellows and those engaged in the history of science at the close of the eighteenth century might be interested in a sample of the diary of this man, Secretary of the Royal Society from 1784 to 1797, who was closely associated with many of the persons and events which made those days memorable in the history of science. Even before his appointment to the Secretaryship of the Royal Society, when he was acting as Secretary to Henry Cavendish, it was he who informed Lavoisier in June 1783 that Cavendish had burned inflammable air and obtained water. On this information Lavoisier repeated the experiment and solved the problem of the composition of water.