Ueber Reinheit der Baukunst auf Grund des Ursprungs der vier Haupt-baustyle ..
A short German treatise of 1856 by the classical philologist Peter Wilhelm Forchhammer, published in Hamburg, arguing the origins of the four principal building styles for architects and antiquarian readers. The numbered plates are fine-line engraved elevations and sections — a primitive timber shed frame, the Parthenon front, the pylon of the Edfu temple with its incised figure panels, and a longitudinal section of San Francesco at Assisi — each drawn in pure outline with measuring scales, useful as clean architectural diagrams and comparative silhouettes.
