The Nuttall Encyclopedia
A class of English politicians who, at the end of the 18th century and the beginning of the 19th, aimed at the political emancipation of the mass of the people by giving them a share in the election of parliamentary representatives. Their Radicalism went no farther than that, and on principle could not go farther.
Wood, James, ed. Entry for 'Radicals'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/r/radicals.html. Frederick Warne & Co Ltd. London. 1900.