Surveys 25 Warrants 13 Surveys--Pennsylvania--18th and 19th centuries 7 Land surveys--Pennsylvania--18th century 6 Soil surveys 5 Soils 5 Surveys--Pennsylvania--18th century 5 more ... AIDS (Disease) 4 Health surveys 4 Land surveys--Pennsylvania--Philadelphia--18th century 4 Surveys--Pennsylvania 4 Surveys--Pennsylvania--19th century 4 Deeds 3 Pennsylvania--Politics and government--18th century 3 Soil-surveys 3 Astronomy--18th century 2 Church buildings 2 Education 2 Educational surveys 2 Geological surveys 2 Historical survey 2 Land surveys 2 Land surveys--Pennsylvania--17th century 2 Land surveys--Pennsylvania--19th century 2 Land surveys--Pennsylvania--Philadelphia--19th century 2 Prevention 2 Roads--Pennsylvania--18th and 19th centuries 2 Social aspects 2 Social surveys 2 Survey 2 Surveys--Pennsylvania--Chester County--Early 2 Susquehanna County (Pa.) 2 Taxation 2 Turnpikes--Pennsylvania--19th century 2 Acquired Immunodeficiency Syndrome 1 Antiquities 1 Archaeological Survey 1 Archaeological surveying 1 Archaeology 1 Armstrong, John 1 less ...