When the budget has passed both chambers it is promulgated by the president under the title of Loi des finances.
After 1848 he maintained the same role, acting as reporter of the loi Falloux.
In 1813 he was appointed professor of chemistry at the Lycee Charlemagne, and subsequently undertook the directorship of the Gobelins tapestry works, where he carried out his researches on colour contrasts (De la loi du contraste simultane des couleurs, 1839).
He pronounced himself in favour of the national workshops and against the loi Falloux.
But it may simply be an extension of the meaning of "right," or of the sense of "leave" which is found in early uses of the French loi.
