Used with
permission of Maiken Naylor, University at Buffalo, Buffalo, NY, USA,
http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps
..Amedeo Avogadro
..Johan Gadolin
..Antoine Laurent
Lavoisier
..Jons Jakob
Berzelius
..Arne Tiselius
..Joseph Louis
Gay-Lussac
..Dmitri Ivanovich Mendeleyev
..Joseph Priestly..Friedrich August Kekule von Stradonitz
..Justus von
Liebig
..Friedrich
Wohler
..Nikolai Zinin