Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. Alexandre-Emile
Béguyer de Chancourtois (20 January 1820 - 14 November 1886) was a
French geologist and mineralogist who was the first to arrange the
chemical elements in order of atomic weights, doing so in 1862. De
Chancourtois only published his paper, but did not publish his actual
graph with the proposed arrangement. Although his publication was
significant, it was ignored by chemists as it was written in terms of
geology. It was Dmitri Mendeleyev's table published in 1869 that became
most recognized. De Chancourtois was also a professor of mine surveying,
and later geology at the École Nationale Supérieure des Mines de Paris.
He also was the Inspector of Mines in Paris, and was widely responsible
for implementing many mine safety regulations and laws during the time.
