Alexander Lawson's engraving, "Architectural Plan and Elevation of the Schuylkill P. Bridge," illustrates A Statistical Account of the Schuylkill Permanent Bridge, Communicated to the Philadelphia Society of Agriculture, 1806 (Philadelphia: Printed by Jane Aitken, 1807), which was bound with the first volume of the Society's Memoirs. The Society's interest in such a structure acknowledges its importance to the development of the Philadelphia region, both agriculturally and commercially.
Alexander Lawson's engraving, "Architectural Plan and Elevation of the Schuylkill P. Bridge,"

