Land Surveys--18th century Astrology--German--18th Century 1 Beekeeping--German--18th Century 1 Canals--Pennsylvania 1 Commerce--18th century 1 Deeds--Germantown (Philadelphia, Pa.)--18th century 1 Deeds--Pennsylvania--18th Century 1 more ... Fort Duquesne 1 Fortifications--Plans--18th and 19th centuries 1 Germantown (Philadelphia, Pa.)--History 1 Internal Improvements--18th century 1 Land Settlements--Pennsylvania 1 Land Warrants-Pennsylvania--18th century 1 Land settlement and speculation--Northeastern states--18th century 1 Land speculation--Georgia--18th century 1 Land speculation--Pennsylvania--Federal period 1 Land surveys 1 Land surveys--Pennsylvania--18th century 1 Land surveys--Pennsylvania--Philadelphia--18th century 1 Legal Documents--18th Century 1 Maps--North America--18th century 1 Native Americans--White perceptions of 1 Pennsylvania--Description and Travel--18th century 1 Roxborough (Philadelphia, Pa.)--History 1 Surveying--18th century 1 Surveys (land)--Pennsylvania--Philadelphia--18th century 1 Turnpikes--Pennsylvania--19th century 1 United States--History--Revolution, 1775-1783--Economic aspects 1 United States--History--Westward Expansion--18th century 1 United States--Western Frontier--Descriptions--18th century 1 less ...