[DUBUISSON (Paul Ulric) - DUBUC (Jean-Baptiste). Critical and political letters, On the colonies & the trade of the maritime cities of France, Addressed to G. T. Raynal. Geneva, Paris, 1785. - In-8, garnet half calf, smooth spine decorated, untrimmed (modern binding). First edition of this work composed by the playwright and historian of the American colonies Paul Ulric Dubuisson (1746-1794), which some consider to have been also co-written with Jean-Baptiste Dubuc (1717-1795). In 11 letters, the author deals with the colonies in general, trade, agriculture, but also with the slave trade. At the end, in separate pages, there is a "Conversation D'un Officier d'Artillerie". Light spotting, restorations in the upper margin of the first and last leaves.