DE BORDA, Description et usage du cercle de réflexion, 1802
DE BORDA, Jean-Charles.
Description et usage du cercle de réflexion, avec différentes méthodes pour calculer les observations nautiques.
Paris, Firmin didot, 1802.
4to, 86-(1) pages, 3 plates and 33-(3) pages of tables. binding : Unbound.
Second edition.
Jean-Charles de Borda, a mathematician and navigator, designed the reflecting circle, an instrument for measuring angles used in navigation. This work is a technical manual describing the construction, use, and theory of this instrument, which helped improve the precision of observations at sea.
Price : 200 €