Astrology--German--18th Century 1 Beekeeping--German--18th Century 1 Deeds--Germantown (Philadelphia, Pa.)--18th century 1 Deeds--Pennsylvania--18th Century 1 Germantown (Philadelphia, Pa.)--History 1 Historical Society of Pennsylvania--Exhibits 1 Land Surveys--18th century 1 more ... Land surveys 1 Land surveys--Pennsylvania--18th century 1 Land surveys--Pennsylvania--Philadelphia--18th century 1 Legal Documents--18th Century 1 Rittenhouse, David 1 Roxborough (Philadelphia, Pa.)--History 1 Surveying--18th century 1 Surveys (land)--Pennsylvania--Philadelphia--18th century 1 less ...