| Call number | Item |
| G | Geography, Anthropology, Folklore, Recreation (Go to start of category) |
| G-GB | Geography (General and Physical) (Go to start of category) |
| GB | Physical Geography (Go to start of category) |
| GB611 .W27 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Deserts: Geology and Resources, by A. S. Walker (illustrated HTML at USGS) |
| GB612 .P47 1980 | Perception of Desertification, ed. by R. L. Heathcote (illustrated HTML at UNU Press) |
| GB618.3 .S77 1980 | Strategies for Improved Management of Latin American Drylands, ed. by J. A. Mabbutt, H. J. Schneider, and R. Nava (HTML at UNU Press) |
| GB618.88 .A354 G73 1996 | Grassroots Indicators for Desertification: Experience and Perspectives from Eastern and Southern Africa, ed. by Helen Hambly and Tobias Onweng Angura (PDF and HTML with commentary at idrc.ca) |
| GB661 .L5 | Applied Hydrology (New York et al.: McGraw-Hill Book Co., 1949), by Ray K. Linsley, Max Adam Kohler, and Joseph L. H. Paulhus (page images at HathiTrust) |
| GB661 .S2 | New Water for a Thirsty World (Los Angeles: Science Foundation Press, c1960), by Michael H. Salzman, contrib. by Aldous Huxley (page images at HathiTrust) |
| GB701 .P74 1991 | Preparing for the Twenty-First Century: A Report to the USGS Water Resources Division, by National Research Council Commission on Engineering and Technical Systems (page images with commentary at NAP) |
| GB705 .P4 B3 | Water Resources of the Philadelphia District (Washington: GPO, 1904), by F. Bascom |
| GB840 .F67 | Forests, Climate, and Hydrology: Regional Impacts, ed. by Evan R. C. Reynolds and Frank B. Thompson (HTML at UNU Press) |
| GB991.N6 W28 2001 | Water, Watersheds, and Land Use in New Mexico: Impacts of Population Growth on Natural Resources, Santa Fe Region 2001, ed. by Peggy S. Johnson (PDF at nmt.edu) |
| GB1203 .H3 | Flood Flows: A Study of Frequencies and Magnitudes (New York: J. Wiley and Sons; London: Chapman and Hall, 1930), by Allen Hazen (page images at HathiTrust) |
| GB1363 .W6 | The Nile in 1904 (London: E. and F. N. Spon; New York: Spon and Chamberlain, 1904), by William Willcocks, contrib. by H. J. L. Beadnell |
| GB1399.4 .H3 N49 1991 | The New Year's Eve Flood on Oahu, Hawaii, December 31, 1987 - January 1, 1988 (Washington: National Academy Press, 1991), by John A. Dracup, Edmond Cheng, Joanne M. Nigg, and Thomas A. Schroeder (page images with commentary at NAP) |
| GB1817 | Classification of Natural Ponds and Lakes in the Glaciated Prairie Region (resource publication #92; Washington: Bureau of Sport Fisheries and Wildlife, 1961), by Robert E. Stewart and Harold A. Kantrud (PDF with commentary at usgs.gov) |
| GB2401 .J68 | Journal of Glaciology (partial serial archives) |
| GB2405 .B3 | The Physics and Mechanics of Snow as a Material (Hanover, NH: US Army Cold Regions Research and Engineering Laboratory, 1962), by Henri Bader, contrib. by Daisuke Kuroiwa (page images at HathiTrust) |
| GB2596.5 .D36 2004 | Frozen Annals: Greenland Ice Sheet Research (2004), by Willi Dansgaard (PDF with commentary in Denmark) |
| GB2613 .V5 N73 | NOAA-ARS Cooperative Snow Research Project: Watershed Hydro-Climatology and Data for Water Years 1960-1974 (1977), by Eric A. Anderson, Hugh J. Greenan, Ronald Z. Whipkey, and Carl T. Machell (page images at HathiTrust) |
| GB5010 .C67 | Cooperating with Nature: Confronting Natural Hazards with Land-Use Planning for Sustainable Communities (1998), ed. by Raymond J. Burby (page images with commentary at NAP) |
| GB5014 .S38 2021 | Calamity Theory: Three Critiques of Existential Risk (Minneapolis and London: University of Minnesota Press, 2021), by Joshua Schuster and Derek Woods |
| GC | Oceanography (Go to start of category) |
| GC1 .A58 | Annual Review of Marine Science (partial serial archives) |
| GC1 .C359116 | Scripps Institution of Oceanography: First Fifty Years (1967), by Helen Raitt and Bea Moulton (HTML at UC Press) |
| GC1 .L5 | Limnology and Oceanography (partial serial archives) |
| GC1 .O325 | Oceanologia (full serial archives) |
| GC11 .M459 | The Physical Geography of the Sea, by Matthew Fontaine Maury (page images at MOA) |