The INTERNET Database of Periodic Tables
There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
Courtines' A Model of the Periodic Table or Periodic Classification
Published in J. Chem. Ed., 2, 2, 107-109 in 1925 by M. Courtines of the Laboratory of Experimental Physics, College of France, Paris.
We do not know the date of the forth image (below), but it looks as if it was prepared a few years later. However, it is a 'top down' view of the 3D formulation.
From Quam & Quam's 1934 review paper.pdf
© Mark R. Leach 1999-
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