The Nuttall Encyclopedia
A German alchemist of the 15th century, is said to have been a Benedictine monk at Erfurt, and is reckoned the father of analytical chemistry.
Wood, James, ed. Entry for 'Valentine, Basil'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/v/valentine-basil.html. Frederick Warne & Co Ltd. London. 1900.