L' art d'appareil, qui fait une partie essentielle de l'architecture, necessaire aux architectes, entrepreneurs, appareilleurs et tailleurs de pierres : où l'on trouvera plusieurs leçons qui n'avoient pas encore développées
A 1756 French treatise on stereotomy, the geometry of cutting stone for vaults and arches, written by Menand for architects, contractors and stonecutters, published in Paris by de la Marcade and François. Its pages are engraved plates of vault projections, with plan, elevation and developed stone-face views drawn in fine ruled lines and dashed hidden edges, showing how each voussoir's faces are derived. A designer could take from them the precise, diagrammatic language of orthographic projection and the stepped, interlocking geometry of arch and vault construction as graphic motifs.
