Wilkerson / Wapwallopen / New York / Harrisburg / Wilmington / /
Company
Gould / Columbia University Press / Keystone Publishing Company / E. I. Du Pont de Nemours and Company / Mead / DuPont / Braun D. D. / Du Pont / CORNING / /
Powder Hole complex / University Press / Luzerne County Community College / North Branch Canal / Pennsylvania State University / University Park / GLAZING MILL / The Hagley Museum / Bloomsburg University / New Mexico Institute of Mining / Appalachian Trail / /
IndustryTerm
plant site / manufacturing process / industrial site / bank / opposite bank / powder chips / /
NaturalFeature
Irish Valley / North Branch Susquehanna lowland / Brandywine Creek / Wapwallopen Creek valley / Lower waterfall / Middle Falls / Great Falls / Wapwallopen valley / Wapwallopen·Great Falls / Lower Falls / Middle waterfall / Wapwallopen Creek / /
OperatingSystem
Dos / /
Organization
Columbia University / The Johns Hopkins University / South Dakota School of Mines / Bloomsburg University / New Mexico Institute of Mining and Technology / Pennsylvania State University / Environmental Geology Division of the Pennsylvania Geo / Luzerne County Community College / Susquehanna Chapter / Catskill Formation / Bureau of Topo· / Society for Industrial Archeology / Secretary OFFICE OF PARKS AND FORESTRY James R. Grace / ded / Bureau of Topographic / DEPARTMENT OF ENVIRONMENTAL RESOURCES Arthur A. Davis / Pennsylvania Department of Environmental Resources / /
Person
GEOLOGIC SURVEY / Antoine Lavoisier / Arthur A. Davis / Donald M. Hoskins / William Silver / Van Gelder / Pete / James R. Grace / Christine M. Dodge / Peter Wilshusen / John Peter Wilshusen / /
Position
Chief Seattle This / rt / geologist / General / Deputy Secretary / chief / Governor / STATE GEOLOGIST / chemist / /
ProvinceOrState
New Brunswick / Virginia / Sicily / New York / Pennsylvania / Luzerne County / Delaware / /
VOL. 23, NO. 1 COMMONWEALTH OF PENNSYLVANIA Robert P. Casey, Governor DEPARTMENT OF ENVIRONMENTAL RESOURCES