Orthoptera of the serpentine barrens in Chester County, Pa Read more about Orthoptera of the serpentine barrens in Chester County, Pa
A history of chromite and copper in Maryland: the Tyson years Read more about A history of chromite and copper in Maryland: the Tyson years
Electrophoretic study of the allopolyploidal origin of Talinum teretifolium and the specific status of T. appalachianum (Portulacaceae) Read more about Electrophoretic study of the allopolyploidal origin of Talinum teretifolium and the specific status of T. appalachianum (Portulacaceae)
The Unionville, Pennsylvania, corundum mines Read more about The Unionville, Pennsylvania, corundum mines
The minerals of Brinton’s Quarry, Chester County, Pa Read more about The minerals of Brinton’s Quarry, Chester County, Pa
Secondary succession following fire on a serpentine barren Read more about Secondary succession following fire on a serpentine barren
An ecological study of the serpentine barrens in Lancaster County, Pennsylvania Read more about An ecological study of the serpentine barrens in Lancaster County, Pennsylvania