The Nuttall Encyclopedia
An alkaloid obtained from the bark of several species of the cinchona tree and others, and which is employed in medicine specially as a ferbrifuge and a tonic.
Wood, James, ed. Entry for 'Quinine'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/q/quinine.html. Frederick Warne & Co Ltd. London. 1900.