Boston. Harbor. Maps. Map 835.2.B5.1819 Wadsworth, Alexander Scammell. 1790-1851. Chart of Boston harbour, surveyed in 1817 ... by order of Com®. William Bainbridge. Phila. Melish. 1819. Size, 34 1/8 x 40 1/8 inches. Scale, 1500 ft. to 1 inch.