LETTER LXXXIII.

Conservatory of Arts and Trades--It contains a numerous collection of machines of every description employed in the mechanical arts --_Belier hydraulique_, newly invented by _Montgolfier_--Models of curious buildings--The mechanical arts in France have experienced more or less the impulse given to the sciences--The introduction of the Spanish merinos has greatly improved the French wools--New inventions and discoveries adopted in the French manufactories --Characteristic difference of the present state of French industry, and that in which it was before the revolution.