Bible Encyclopedias
Thallium

The Nuttall Encyclopedia

A rare metallic element similar to lead, but heavier, discovered in 1861 by the green in the spectrum in the flame as it was being volatilised.

Bibliography Information
Wood, James, ed. Entry for 'Thallium'. The Nuttall Encyclopedia. https://www.studylight.org/​encyclopedias/​eng/​nut/​t/thallium.html. Frederick Warne & Co Ltd. London. 1900.