Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey /
Bascom, F. 1862-1945.
Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey / by F. Bascom ... [et al.] - Washington : U.S. G.P.O., 1931. - iv, 62 p. : ill. (some folded), maps (some col.) ; 24 cm. - Bulletin ; 828 . - Geological Survey bulletin ; 828. .
Col. map on folded leaf in pocket.
Includes bibliographical references and index.
gs 31000225
Geology--Pennsylvania.
Geology--New Jersey.
Mines and mineral resources--Pennsylvania.
Mines and mineral resources--New Jersey.
QE75 / .B9 no. 828
Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey / by F. Bascom ... [et al.] - Washington : U.S. G.P.O., 1931. - iv, 62 p. : ill. (some folded), maps (some col.) ; 24 cm. - Bulletin ; 828 . - Geological Survey bulletin ; 828. .
Col. map on folded leaf in pocket.
Includes bibliographical references and index.
gs 31000225
Geology--Pennsylvania.
Geology--New Jersey.
Mines and mineral resources--Pennsylvania.
Mines and mineral resources--New Jersey.
QE75 / .B9 no. 828