The Nuttall Encyclopedia
A metallic silver-white elementary body of rare occurrence, and occurring in very small quantities; discovered first in 1801 by Del Rio.
Wood, James, ed. Entry for 'Vanadium'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/v/vanadium.html. Frederick Warne & Co Ltd. London. 1900.