Unpublished Memoir by Lavoisier. 99 
tled, “Leeons de Chimie professées en 1860, par MM. Pasteur, Cahour, 
Wurtz, Berthelot, Sainte Claire Deville, Barral et Dumas.” Each of 
We all remember the sensation occasioned at the appearance in 1840, 
of a work of Dumas and Boussingault, entitled, “‘Zecon sur la statique 
peared to be the programme of one or more prizes which it was pro- 
posed to found in the name of the Academy. nig : 
¢ have space for only a few reflections suggested by the interesting 
memoir of Dumas. Seventy-five years after the hand of Lavoisier trac 
Lavoisier, To it he committed in a way calculated to conceal his per- 
the mineral kingdom. : all 
“ Finally, fermentation, putrefaction and combustion are perpetually 
