Über die bauliche Einrichtung des römischen Wohnhauses
A scholarly German study of Roman domestic architecture by Karl Gottlob Zumpt, published in Berlin in 1852, aimed at architectural historians and classical scholars. Its plate shows measured floor plans of Roman houses, with the main plan labelled Casa di Sallustio at Pompeii beside smaller plans of other houses, each room carefully lettered and keyed. A designer might take from it the clean hatched-line plan drawing style, with thin rules, small serif labels and a dense, orderly grid of rooms around courtyards.
