Polk, Charles, of Md., [30].

Pope's creek, Westmoreland Co., [52].

Poplar trees, [81].

Portrait of Major Washington, [54].

Potomac, head spring of, [80].

Potomac river, [21], [23], [31], [109].

Potomac river, high water, [29].

Powell. Joseph, [90], [91], [92], [93].

Pownall. S., [65].

Pownall's, Gov. map, [20].