BERTHELOT, Marcelin. Essai de mécanique chimique fondée sur la thermochimie. 1879.

First edition, with the rare supplement.
"A monumental work in which Berthelot "laid the foundation of thermochemistry" (Zeitlinger). His researches began a new epoch, and in this work he introduced the terms exo- and endo-thermic. Although a number of chemists before him had made contributions regarding the evolution and absoption of heat in chemical reactions, it was Berthelot whose experimental determinations cover almost the whole range of chemical reaction." ... "Most copies lack the important and rare Supplément" (Neville).