A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 32
§7 MASONRY. 21 Fig. 13 shows a footing consisting of a single course of stone a, 8 inches thick and2 feet 4 inches wide, carry-ing the stone wall b, 20inches thick.
Architecture · Building
Internet Archive · New York Public Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from M. Vitrvvii De architectvra libri decem : nuper maxima diligentia castigati atq[ue] excusi : additis Iulij Frontini De aqueductibus libris propter materiae affinitatem (1522)](https://img.insideoutlibrary.com/img/200/ia-mvitrvviidearchi00vitr-73-24.webp)
