107210. Willis, B.   Individuals of Stratigraphic Classification.   The University of Chicago Press, 1901, The Journal of Goloey, Volume 9, Number 7 : pages 557-569.   Softbound, good condition.   Original publication, not a modern reprint.   $7.00

65612. Robertson, A.   Through the Dolomites: A Practical, Historical, and Descriptive Guide-Book to the Scotland of Italy.   George Allen, London, 1903, , 291 pages with 49 illustrations and 1 fold-out map.   Hard bound, xlib with all the usual signs, spine tape repaired, hinges weak, text in good or better condition.   second edition (revised).   $38.00

87361. Diller, J. S.   The Bragdon Formation.   Yale, 1905, The American Journal of Science, Volume 19, Number 113, Article 41 : pages 379-387 with 1 illustration.   Softbound, minor signs of use and age, text in good or better condition.    $7.00

95426. Smith, J. P.   The Stratigraphy of the Western American Trias.   E. Schweizerbart'sche Verlagsbuchnandlung, Stutgart, Germany, 1907, Sonder - Abdruck, pages 377-434 with illustrations.   Softbound, inscribed by the author, minor signs of age, very good condition.   Original publication, not a modern copy.   $38.00

87369. Kemp, J. F.   Buried Channels Beneath the Hudson and its Tributaries.   Yale, 1908, The American Journal of Science, Volume 26, Number 154, Article 34 : pages 301-323 with 15 figures.   Softbound, previous owners name, front wrap missing, text in good condition.    $17.00

102577. Lee, W. T.   Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico.   United States Geological Survey, 1915, USGS Professional Paper, PP 95C : pages 27-58 with 1 plate and 11 figures.   Softbound, wraps missing, text and plates in good or better condition.   Original Vintage Publication, Not a Modern Reprint.   $11.00

102580. Lee, W. T.   Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico.   United States Geological Survey, 1915, USGS Professional Paper, PP 95C : pages 27-58 with 1 plate and 11 figures.   Softbound, minor signs of age, text and plate in very good condition.   Original Vintage Publication, Not a Modern Reprint.   $15.00

102788. Lee, W. T.   Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico.   United States Geological Survey, 1915, USGS Professional Paper, PP 95C : pages 27-58 with 1 plate and 11 figures.   Softbound, moisture stains, good minus condition.   Original Vintage Publication, Not a Modern Reprint.   $5.00

102791. Lee, W. T.   Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico.   United States Geological Survey, 1915, USGS Professional Paper, PP 95C : pages 27-58 with 1 plate and 11 figures.   Softbound, moisture stains, good condition.   Original Vintage Publication, Not a Modern Reprint.   $8.00

102817. Condit, D. D.   Relations of the Embar and Chugwater Formations in central Wyoming.   United States Geological Survey, 1916, USGS Professional Paper, PP 98O : pages 263-270 with 3 plates and 1 figure.   Softbound, stapled text extracted from larger volume, a little rough along the spine, good plus or better condition.   Original Vintage Publication, Not a Modern Reprint.   $8.00

102809. Mansfield, G. R. and Roundy, P. V.   Revision of Beckwith and Bear River formations of southeastern Idaho.   United States Geological Survey, 1916, USGS Professional Paper, PP 98G : pages 75-84 with 2 plates.   Softbound, stapled text extracted from larger volume, a little rough along the spine, good plus or better condition.   Original Vintage Publication, Not a Modern Reprint.   $9.00

102813. Ransome, F. L.   Some Paleozoic sections in Arizona and their correlation.   United States Geological Survey, 1916, USGS Professional Paper, PP 98K : pages 133-166 with 8 plates and 4 figures.   Softbound, stapled text extracted from larger volume, a little rough along the spine, good plus or better condition.   Original Vintage Publication, Not a Modern Reprint.   $19.00

102552. Gregory, H. E.   Geology of the Navajo country; a reconnaissance of parts of Arizona, New Mexico, and Utah.   United States Geological Survey, 1917, USGS Professional Paper, PP 93 : 161 pages with 34 plates and 3 figures.   Softbound, wraps missing, minor signs of use, all plates present, text and plates in good plus or better condition.   Original Vintage Publication, Not a Modern Reprint.   $38.00

102868. Wegemann, C. H.   Wasatch fossils in so-called Fort Union beds of the Powder River basin, Wyoming, and their bearing on the stratigraphy of the region.   United States Geological Survey, 1917, USGS Professional Paper, PP 108D : pages 57-60 with illustrations.   Softbound, stapled text, extracted from larger volume, good plus condition.   Original Vintage Publication, Not a Modern Reprint.   $5.00

101388. Merite, J. B.   Graphic and mechanical computation of thickness of strata and distance to a stratum.   United States Geological Survey, 1922, USGS Professional Paper, PP 129C : pages 39-52 with 8 figures and 3 plates.   Softbound, stapled text, good condition.   Original Publication, Not a Modern Reprint.   $8.00

101394. Merite, J. B.   Graphic and mechanical computation of thickness of strata and distance to a stratum.   United States Geological Survey, 1922, USGS Professional Paper, PP 129C : pages 39-52 with 8 figures and 3 plates.   Softbound, moisture staining, still good usable study copy.   Original Publication, Not a Modern Reprint.   $11.00

101401. Reeside, J. B. and Bassler, H.   Stratigraphic sections in southwestern Utah and northwestern Arizona.   United States Geological Survey, 1922, USGS Professional Paper, PP 129D : pages 53-77 with 1 figure and 4 plates.   Softbound, wraps missing, stapled text in good or better condition.   Original Publication, Not a Modern Reprint.   $8.00

101413. Ross, C. P.   Geology of the lower Gila region, Arizona.   United States Geological Survey, 1922, USGS Professional Paper, PP 129H : 183-197 with 5 plates including color map in back pocket.   Softbound, plate map from back pocket missing, remaining text and plates in good plus condition.   Original Publication, Not a Modern Reprint.   $8.00

101458. Noble, L. F.   A section of the Paleozoic formations of the Grand Canyon at the Bass Trail.   United States Geological Survey, 1922, USGS Professional Paper, PP 131B : pages 23-73 with 4 figures and 7 plates .   Softbound, tape repair to spine, text and plates in good or better condition.   Original Publication, Not a Modern Reprint.   $9.00

101548. Sears, J. D. and Bradley, W. H.   Relations of the Wasatch and Green River Formations in northwestern Colorado and southern Wyoming.   United States Geological Survey, 1924, USGS Professional Paper, PP 132F : pages 93-107 with 2 figures and 2 plates.   Softbound, tape repair, good condition.   Original Publication, Not a Modern Reprint.   $8.00

93213. Wilmarth, M. G.   The Geologic Time Classification of the United States Geological Survey Compared with Other Classifications accompanied by the Original Definitions of Era, Period and Epoch Terms a compilation.   United States Geological Survey, 1925, Bulletin, Number 769 : .   Softbound, cover worn, text in good condition, plate in back pocket.    $8.00

87203. Bevan, A.   The Glenwood beds as a horizon marker at the base of the Platteville formation.   Illinois State Geological Survey, Urbana, 1926, Report of Investigations, Number 9 : 13 pages with 3 figures and 1 table.   Softbound, minor moisture stain along base of text, other minor signs of use and age, good condition.    $8.00

105836. Condra, G. E.   The Stratigraphy of the Pennsylvanian System of Nebraska.   Nebraska Geological Survey, 1927, NGS Bulletin, Second Series, Number 1 : 291 pages with 38 figures and 7 plates.   Softbound, minor signs of use, good plus condition.    $17.00

105835. Condra, G. E.   The Stratigraphy of the Pennsylvanian System of Nebraska.   Nebraska Geological Survey, 1927, NGS Bulletin, Second Series, Number 1 : 291 pages with 38 figures and 7 plates.   Softbound, previous owners name, tape repair to spine, good condition.    $13.00

94801. Condra, G. E.   The Stratigraphy of the Pennsylvanian System in Nebraska.   Nebraska Geological Survey, 1927, NGS Bulletin, Number 1, Second Series : pages 291 with 38 figures.   Hardbound, corrected copy, good plus condition.   Original publication, not a modern copy.   $22.00

82853. Gould, C. N.   The Upper Paleozoic Rocks of Oklahoma: Stratigraphy and Arial Geology.   Oklahoma Geological Survey, 1927, OGS, Bulletin, Number 41 : 66 pages with 1 plate and 30 figures.   Hardbound, previous owners name, usual signs of use and age, text and plates in good plus or better condition.    $11.00

95158. Landes, K. E. and Ockerman, J. W.   The Geology of Mitchell and Osborne Counties, Kansas.   University of Kansas Publications, Lawrence, Kansas, 1930, State Geological Survey of Kansas, Bulletin 16 : .   Softbound, previous owners name, minor signs of use, text in very good condition.   Original publication, not a modern copy.   $11.00

94798. Condra, G. E. et al.   Deep Wells of Nebraska.   Nebraska Geological Survey, 1931, NGS Bulletin, Number 4, Second Series : 288 pages with illustrations.   Hardbound, minor signs of use, very good condition.   Original publication, not a modern copy.   $19.00

104922. Condra, G. E. et al.   Deep Wells of Nebraska.   Nebraska Geological Survey, 1931, NGS Bulletin, Number 4, Second Series : 288 pages with illustrations.   Hardbound, minor signs of use or age, very good condition.   Original publication, not a modern copy.   $18.00

104921. Condra, G. E. et al.   Deep Wells of Nebraska.   Nebraska Geological Survey, 1931, NGS Bulletin, Number 4, Second Series : 288 pages with illustrations.   Softbound, wraps worn, text in good plus condition.   Original publication, not a modern copy.   $11.00

105799. Grimsley, G. P.   The Baltimore & Ohio Railroad.   International Geological Congress, XVI Session, United States, 1932, IGC, Session 16, Guidebook, Guidebook 30 & 30a maps : Excursion A-2, A-6, C-1, C-2, C-3, C-4 : 79 pages with map case.   Hardbound, xlib, good plus condition.    $21.00

108620. Grimsley, G. P.   The Baltimore & Ohio Railroad.   International Geological Congress, XVI Session, United States, 1932, IGC, Session 16, Guidebook, Guidebook 30 : Excursion A-2, A-6, C-1, C-2, C-3, C-4 : 79 pages.   Softbound, moisture stain on cove, text in good plus or better condition.    $13.00

105822. Condra, G. E. and Upp, J. E.   The Middle River Traverse of Iowa.   Nebraska Geological Survey, 1933, NGS Paper, Number 4 : 31 pages with 4 figures.   Softbound, minor signs of use, very good condition.    $8.00

111175. Howe, H. V.   Review of Tertiary Stratigraphy of Louisiana.   The American Association of Petroleum Geologists, 1933, AAPG Bulletin, Volume 17, Number 6 : 613-655.   Softbound, signs of use, good condition.    $10.00

105820. Condra, G. E. and Busby, C. E.   The Grenola Formation.   Nebraska Geological Survey, 1933, NGS Paper, Number 1 : 31 pages with 2 figures.   Softbound, minor signs of use, very good condition.    $8.00

105821. Condra, G. E. and Upp, J. E.   The Red Oak-Stennett-Lewis Traverse of Iowa.   Nebraska Geological Survey, 1933, NGS Paper, Number 3 : 23 pages with 4 figures.   Softbound, minor signs of use, very good condition.    $8.00

82933. Power, E. H. et al.   The Parairie Du Chien Problem, Paleozoic Stratigraphy and Structure in the Minnesota River Valley, and Paleozoic Stratigraphy and Structure on Saint Croix River.   University of Iowa, Iowa City, Iowa, 1935, University of Iowa Studies, Studies in Natural History, Contributions to the Stratigraphy and Struct, Volume 16, Number 6 : pages 421-496 with illustrations.   Softbound, minor cover wear, text in very good condition.    $15.00

105823. Condra, G. E.   Geologic Cross-Section, Forest City, Missouri to Du Bois, Nebraska.   Nebraska Geological Survey, 1935, NGS Paper, Number 8 : 23 pages with 1 figure.   Softbound, minor signs of use, very good condition.    $8.00

98636. Moore, R. C.   Stratigraphic Classification of the Pennsylvanian Rocks of Kansas .   University of Kansas Publications, Lawrence, Kansas, 1935, Bulletin of the University of Kansas, Number 22 : .   Softbound, tape on spine, in good plus condition.    $15.00

105825. Condra, G. E. and Reed, E. C.   Water-Bearing Formations of Nebraska.   Nebraska Geological Survey, 1936, NGS Paper, Number 10 : 24 pages with 11 figures and 3 plates.   Softbound, minor signs of use, very good condition.    $13.00

105818. Loetterle, G. J.   The Micropaleontology of the Niobrara Formation in Kansas, Nebraska, and South Dakota.   Nebraska Geological Survey, 1937, NGS Bulletin, Second Series, Number 12 : 73 pages with 11 plates.   Softbound, minor signs of use, very good condition.    $13.00

87206. Newton, W. A. and Weller, J. M.   Stratigraphic studies of Pennsylvanian outcrops in part of southern Illinois.   Illinois State Geological Survey, Urbana, 1937, Report of Investigations, Number 45 : 31 pages with 1 plate and 12 figures.   Softbound, minor signs of age, text in very good condition.    $11.00

105734. Clark, E. L.   The St. Louis Formation in Southwestern Missouri.   State of Missouri, Geological Survey and Water Resources, 1937, Biennial Report, 59th, Appendix 4 : 13 pages.   Softbound, xlib, good plus condition.    $5.00

105735. Grohskopf, J. G.   Subsurface Geology of Northeastern Missouri: A Preliminary Report.   State of Missouri, Geological Survey and Water Resources, 1937, Biennial Report, 60th, Appendix 1 : 160 pages with 3 figures and 3 plates.   Softbound, minor signs of use, text in very good condition.    $21.00

94829. Lee, W. et al.   Stratigraphic and Paleontologic Studies of the Pennsylvanian and Permian Rocks in North-Central Texas .   University of Texas Press, 1938, University of Texas Bulletin, Number 3801 : .   Softbound, xlib, good plus condition.   Original publication, not a modern copy.   $26.00

105826. Condra, G. E. and Reed, E. C.   The Redfield Anticline of Nebraska and Iowa.   Nebraska Geological Survey, 1938, NGS Paper, Number 12 : 19 pages with 1 figure.   Softbound, minor signs of use, very good condition.    $8.00

105827. Condra, G. E.   Correlation of Formations Drilled in the Midland Forster Well Near Fremont, Nebraska.   Nebraska Geological Survey, 1938, NGS Paper, Number 13 : 20 pages with 4 figures.   Softbound, minor signs of use, very good condition.    $8.00

85390. Caster, K. E.   Siliceous Sponges from Mississippian and Devonian Strata of the Penn-York Embayment.   Society of Economic Paleontologists and Mineralogists, 1939, Journal of Paleontology, 13 (1) : pages 1-20 with 4 plates and 8 figures.   Homemade archival folder, some signs of use and age, good condition.    $8.00

105829. Condra, G. E.   Correlation of the Amerada Petroleum Company Well, Drilled Near Nehawka, Nebraska.   Nebraska Geological Survey, 1939, NGS Paper, Number 14 : 16 pages.   Softbound, minor signs of use, very good condition.    $8.00

105831. Condra, G. E. and Reed, E. C.   Deep Wells at Lincoln Nebraska.   Nebraska Geological Survey, 1939, NGS Paper, Number 15 : 25 pages.   Softbound, minor signs of use, good plus condition.    $8.00