12659. Editor.   The Ancient Volcanic Rocks of South Mountain, Pennsylvania by Florence Bascom, United States Geological Survey, Bulletin 136, 1896.   United States Geological Survey, , Bulletin, 136 : 1-124, 28 plates including large fold out color map plate.   Printed wraps, moisture and heat damage, good minus condition, good study copy of a rarely seen work in any condition.    $22.00

12789. Editor.   Limestones of Southwestern Pennsylvania by Frederick G. Clapp, USGS Bulletin, 1905.   United States Geological Survey, , Bulletin, 249 : 1-52, 7 plates.   Printed wraps, signs of moisture, usual signs of use and age, text in good minus condition, good research copy.    $8.00

73475. United States Geological Survey.   Relation between ground water and surface water in Brandywine Creek basin, Pennsylvania.   United States Geological Survey, , Geological Survey Professional Paper, P417A.   Softbound, xlib, usual signs of use, text in very good condition.    $8.00

46514. Allen, C.   Second Geological Survey of Pennsylvania: 1875-6-7. Report of Progress. N. Two Hundred Tables of Elevation Above Tide-Level of the Railroad Stations, Summits and Tunnels: Canal Locks, Dams, River Riffles, &c. in and Around Pennsylvania, ….   Geological Survey of Pennsylvania, Harrisburg, 1878, Second Geological Survey of Pennsylvania, Report of Progress, Volume N : pages 1-279 with map plate of Pennsylvania in the front and fold-out map plate in back pocket.   Original hardbound, usual signs of use and age, fly page missing, text and map in very good condition.    $250.00

46493. Fontaine, W. M. and White, I. C.   The Permian or Upper Carboniferous Flora of West Virginia and S. W. Pennsylvania.   Geological Survey of Pennsylvania, Harrisburg, 1880, Second Geological Survey of Pennsylvania, Report of Progress, Volume PP : pages 1-143 with 38 plates.   Half-calf on marble boards, usual signs of use and age, text and plates in very good condition.    $500.00

46441. Lesquereux, L.   Description of the Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States. Volume I. 1. Cellular Cryptogamus Plants 2. Vascular Cryptogramous Plants and Volume II. 1. Lycopodiaceae, 2. Sigillariae. 3. Gymnosperms.   Second Geological Survey of Pennsylvania, Harrisburg, Pennsylvania, 1880, Second Geological Survey of Pennsylvania, Report of Progress, P, pages 1-694 with 2 plates.   Original hard cover with usual signs of use and age, binding weakening, plates and text in very good condition.    $500.00

46492. Sherwood, A. and Plate, F.   The Geology of Lycoming and Sullivan Counties. Part 1. Field Notes and Part 2. Coal Basins.   Geological Survey of Pennsylvania, Harrisburg, 1880, Second Geological Survey of Pennsylvania, Report of Progress, Volume GG : pages 1-268 with map plate of Pennsylvania in front, two colored geologic maps and numerous illustrations.   Original hardbound, usual signs of use and age, text and plates in very good condition.    $500.00

46491. White, I. C.   The Geology of Pike and Monroe Counties.   Geological Survey of Pennsylvania, Harrisburg, 1882, Second Geological Survey of Pennsylvania, Report of Progress, Volume G6 : pages 1-407 with map plate of Pennsylvania in front, two maps of the Water Gaps and 6 detailed sections.   Original hardbound present but coming apart, text still bound and complete, usual signs of use and age, text and plates in very good condition.    $500.00

46223. D'Invilliers, E. V.   The Geology of The South Mountain Belt of Berks County.   Second Geological Survey of Pennsylvania, Harrisburg, Pennsylvania, 1883, Second Geological Survey of Pennsylvania, Report of Progress, D3, Volume II. Part 1, pages 1-441 with 3 plates, 26 illustrations of indian relicts, and other miscellaneous illustrations.   Original hard cover with usual signs of use and age and some moisture damage, moisture stain along edges of some pages and plates that does not impact much on the content, good plus or better condition.    $500.00

46490. White, I. C.   The Geology of the Susquehanna River Region in the Six Counties of Wyoming, Lackawanna, Luzerne, Columbi Montour, and Northumberland.   Geological Survey of Pennsylvania, Harrisburg, 1883, Second Geological Survey of Pennsylvania, Report of Progress, Volume G7 : pages 1-464 with plate map of Pennsylvania in front, colored geological map in two sheets in back and 31 pages plates in text.   Original hardbound, usual signs of use and age, text and plates in very good condition.    $500.00

46222. Lesquereux, L.   Description of the Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States. Volume III..   Second Geological Survey of Pennsylvania, Harrisburg, Pennsylvania, 1884, Second Geological Survey of Pennsylvania, Report of Progress, P, pages 695-977 with 24 plates.   Original hard cover with usual signs of use and age, plates and text in very good condition.    $400.00

46440. Lewis, H. C.   Report on the Terminal Moraine in Pennsylvania and Western New York.   Second Geological Survey of Pennsylvania, Harrisburg, Pennsylvania, 1884, Second Geological Survey of Pennsylvania, Report of Progress, Z, pages 1-299 with 19 page plates, 18 artotypes and lithograph plates, 23 maps, 1 fold-out map in front, and 1 map of Pennsylvania in back pocket.   Original hard cover with usual signs of use and age, maps, plates and text in very good condition.   the quality of the text, plates and maps plus the presence of the large fold-out map in the back pocket makes this an exceptional item.   $500.00

107209. Bascom, F.   The Structures, Origin and Nomenclature of the Acid Volcanic Rocks of South Mountain.   The University of Chicago Press, 1893, The Journal of Goloey, Volume 1, Number 8 : pages 813-832.   Softbound, previous owners name, text in very good condition.   Original publication, not a modern reprint.   $13.00

44922. Klages, H. G.   Supplement to Dr. John Hamilton's List of the Coleoptera of Southwestern Pennsylvania.   Carnegie Museum of Natural History, Pittsburgh, 1901, Annals of the Carnegie Museum, Volume 1, Number 2, Article 8 : pages 265-294.   Extracted from a larger volume, a little rough along the spine, otherwise text and plates in very good condition.    $5.00

100763. Campbell, M. R.   Folios of the Geologic Atlas of the United States : Brownsville-Connellsville, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 94 : 19 pages, 3 sheets of illustrations and 8 maps.   Softbound, good condition.   Library Edition.   $41.00

100761. Campbell, M. R.   Folios of the Geologic Atlas of the United States : Brownsville-Connellsville, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 94 : 19 pages, 3 sheets of illustrations and 8 maps.   Softbound, good or better condition.   Library Edition.   $100.00

100764. Campbell, M. R.   Folios of the Geologic Atlas of the United States : Brownsville-Connellsville, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 94 : 19 pages, 3 sheets of illustrations and 8 maps.   Softbound, signs of use and age, good condition.   Library Edition.   $26.00

100765. Campbell, M. R.   Folios of the Geologic Atlas of the United States : Brownsville-Connellsville, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 94 : 19 pages, 3 sheets of illustrations and 8 maps.   Softbound, signs of use and age, good condition.   Library Edition.   $34.00

104006. Fuller, M. L. and Alden, W. C.   Folios of the Geologic Atlas of the United States : Elkland - Tioga, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 93 : 9 pages, 1 sheet of illustrations, and 8 maps.   Softbound, covers worn, stapled text, good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $19.00

104008. Fuller, M. L. and Alden, W. C.   Folios of the Geologic Atlas of the United States : Elkland - Tioga, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 93 : 9 pages, 1 sheet of illustrations, and 8 maps.   Softbound, minor signs of use and age, text and plates in good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $22.00

104013. Fuller, M. L. and Alden, W. C.   Folios of the Geologic Atlas of the United States : Elkland - Tioga, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 93 : 9 pages, 1 sheet of illustrations, and 8 maps.   Softbound, minor sign of use, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $26.00

104018. Fuller, M. L. and Alden, W. C.   Folios of the Geologic Atlas of the United States : Elkland - Tioga, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 93 : 9 pages, 1 sheet of illustrations, and 8 maps.   Softbound, very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $34.00

104019. Fuller, M. L. and Alden, W. C.   Folios of the Geologic Atlas of the United States : Elkland - Tioga, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 93 : 9 pages, 1 sheet of illustrations, and 8 maps.   Softbound, very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $38.00

100760. Campbell, M. R.   Folios of the Geologic Atlas of the United States : Brownsville-Connellsville, Pennsylvania.   United States Geological Survey, 1903, Folios of the Geologic Atlas of the United States, Number 94 : 19 pages, 3 sheets of illustrations and 8 maps.   Softbound, very good condition.   Library Edition.   $56.00

44928. Todd, W. E.   The Birds of Erie and Presque Isle, Erie County, Pennsylvania.   Carnegie Museum of Natural History, Pittsburgh, 1904, Annals of the Carnegie Museum, Volume 2, Number 4, Article 9 : pages 481-596 with 4 plates.   Printed wraps, previous owner marks on front wrap, other signs of use and age, text and plates in very good condition.    $21.00

103918. Stone, R. W.   Folios of the Geologic Atlas of the United States : Elders Ridge, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 123 : 10 page, 3 sheets of illustrations, and 3 maps.   Softbound, covers worn, stapled text, good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $19.00

104068. Woolsey, L. H.   Folios of the Geologic Atlas of the United States : Beaver, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 134 : 16 pages, 1 sheet of illustrations, and 3 maps.   Softbound, minor signs of use and age, good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $34.00

104067. Woolsey, L. H.   Folios of the Geologic Atlas of the United States : Beaver, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 134 : 16 pages, 1 sheet of illustrations, and 3 maps.   Softbound, signs of use and age, good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $26.00

104065. Butts, C.   Folios of the Geologic Atlas of the United States : Ebensburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 133 : 10 pages and 4 maps.   Softbound, minor signs of use and age, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $52.00

104048. Butts, C.   Folios of the Geologic Atlas of the United States : Rural Valley, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 125 : 12 page, 3 sheets of illustrations, and 3 maps.   Softbound, minor sign of use, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $26.00

104045. Butts, C.   Folios of the Geologic Atlas of the United States : Rural Valley, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 125 : 12 page, 3 sheets of illustrations, and 3 maps.   Softbound, minor signs of use and age, text and plates in good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $22.00

104044. Butts, C.   Folios of the Geologic Atlas of the United States : Rural Valley, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 125 : 12 page, 3 sheets of illustrations, and 3 maps.   Softbound, signs of use and age, text and plates in good or better condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $19.00

104026. Stone, R. W.   Folios of the Geologic Atlas of the United States : Elders Ridge, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 123 : 10 page, 3 sheets of illustrations, and 3 maps.   Softbound, very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $34.00

103919. Stone, R. W.   Folios of the Geologic Atlas of the United States : Elders Ridge, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 123 : 10 page, 3 sheets of illustrations, and 3 maps.   Softbound, minor signs of use and age, text and plates in good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $22.00

104069. Woolsey, L. H.   Folios of the Geologic Atlas of the United States : Beaver, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 134 : 16 pages, 1 sheet of illustrations, and 3 maps.   Softbound, minor signs of use and age, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $41.00

101205. Stone, R.   Folios of the Geologic Atlas of the United States : Waynesburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 121 : 12 pages, 3 sheets of illustrations and 3 maps.   Softbound, signs of use and age, good condition.   Library Edition.   $19.00

101202. Stone, R.   Folios of the Geologic Atlas of the United States : Waynesburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 121 : 12 pages, 3 sheets of illustrations and 3 maps.   Softbound, good condition.   Library Edition.   $34.00

101200. Stone, R.   Folios of the Geologic Atlas of the United States : Waynesburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 121 : 12 pages, 3 sheets of illustrations and 3 maps.   Softbound, good plus condition.   Library Edition.   $49.00

101198. Stone, R.   Folios of the Geologic Atlas of the United States : Waynesburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 121 : 12 pages, 3 sheets of illustrations and 3 maps.   Softbound, very good condition.   Library Edition.   $56.00

100774. Butts, C.   Folios of the Geologic Atlas of the United States : Ebensburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 133 : 10 pages and 3 maps.   Softbound, signs of use and age, good condition.   Library Edition.   $26.00

100771. Butts, C.   Folios of the Geologic Atlas of the United States : Ebensburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 133 : 10 pages and 3 maps.   Softbound, good condition.   Library Edition.   $34.00

100768. Butts, C.   Folios of the Geologic Atlas of the United States : Ebensburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 133 : 10 pages and 3 maps.   Softbound, good plus condition.   Library Edition.   $49.00

100766. Butts, C.   Folios of the Geologic Atlas of the United States : Ebensburg, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 133 : 10 pages and 3 maps.   Softbound, very good condition.   Library Edition.   $56.00

103923. Stone, R. W.   Folios of the Geologic Atlas of the United States : Elders Ridge, Pennsylvania.   United States Geological Survey, 1905, Folios of the Geologic Atlas of the United States, Number 123 : 10 page, 3 sheets of illustrations, and 3 maps.   Softbound, minor signs of use and age, text and plates in good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $26.00

104122. Clapp, F. G.   Folios of the Geologic Atlas of the United States : Amity, Pennsylvania.   United States Geological Survey, 1907, Folios of the Geologic Atlas of the United States, Number 144 : 16 pages and 3 maps.   Softbound, very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $52.00

104118. Clapp, F. G.   Folios of the Geologic Atlas of the United States : Amity, Pennsylvania.   United States Geological Survey, 1907, Folios of the Geologic Atlas of the United States, Number 144 : 16 pages and 3 maps.   Softbound, minor signs of use and age, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $26.00

104120. Clapp, F. G.   Folios of the Geologic Atlas of the United States : Amity, Pennsylvania.   United States Geological Survey, 1907, Folios of the Geologic Atlas of the United States, Number 144 : 16 pages and 3 maps.   Softbound, minor signs of age, very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $34.00

104117. Clapp, F. G.   Folios of the Geologic Atlas of the United States : Amity, Pennsylvania.   United States Geological Survey, 1907, Folios of the Geologic Atlas of the United States, Number 144 : 16 pages and 3 maps.   Softbound, minor signs of use and age, text and plates in good plus condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $22.00

100625. Stose, G. W.   Geologic Atlas of the United States : Mercersburg-Chambersburg, Pennsylvania.   United States Geological Survey, 1910, Folios of the Geologic Atlas of the United States, Number 170 : 144 pages and 6 maps.   Softbound, green field folder with text and maps, previous owners name, good or better condition.   Field Edition.   $38.00

104220. Phalen, W. C.   Folios of the Geologic Atlas of the United States : Johnsontown, Pennsylvania.   United States Geological Survey, 1910, Folios of the Geologic Atlas of the United States, Number 174 : 16 pages and 3 maps.   Softbound, minor signs of use and age, text and plates in very good condition.   Library Edition, Original Vintage Atlas Folio, Very Collectable.   $41.00