[ J.-B. Say. economist ] Autograph Letter Signed "J.B. Say" to "Monsieur George Smith", also an economist(?), in French

Two pages, 8vo, bifolium, closed tear on fold, sl. darkeing at edge, mainly good condition, third page with brief biography of Say in French in another hand, adding presumably about his correspondent (?) that "[Say] se consacra a l'economie politique. Comme Smith, il combattit les prohibitions, les imports de consummation [...]". Fourth page has the correspondent's address in Say's hand, and is docketed with name and date. Text of letter: He initially thanks Smith for his letter to him "qui eleve une question interessante sur le produit qui varie le moins envaleur. Je n'en parlerai pas neanmoins dans ma premiere lecon parce que cette question meme doit faire le suject d'une discussion qui fait partie de mes prochaines lecons [en qui est?] necessaire pour que l'on entende la reponse qui doit etre faite a votre question. Ayez donc patience." He then asks if Smith is the son of "William Smith, the member of parliament for the city of Norwich, qui doit etre a paris en ce moment" with his daughter. He then signs off.