Where manuscripts are reproduced in Mary Thale’s Selections from the Papers of the London Corresponding Society, then I have used it as a reference to make access easier for the reader. Otherwise I have referred to the original manuscripts in either the British Library or National Archives. See notes and bibliography for details of the individual manuscripts.

Bibliographical references to printed materials are given in short form in the notes with full details in the bibliography, newspapers and periodicals excepted, where details are provided in the relevant note, or sometimes simply by date in the main text in the case of eighteenth-century newspapers.