The University of Cincinnati Libraries primarily uses the Library of Congress Call Number system for organizing our books. You can browse the shelves in our libraries in the following call numbers:
| GB | Physical Geography |
| GC | Oceanography |
| GE | Environmental Sciences |
| GF | Human Ecology |
| QC 801-849 | Geophysics / Geomagnetism |
| QE | Geology |
| QH1-(199.5) | Natural History General Including nature conservation, geographical distribution |
| QH359-425 | Evolution |
| QH426-470 | Genetics |
| QH471-489 | Reproduction |
| QH501-531 | Life |
| QH540-549.5 | Ecology |
| QH705-705.5 | Economic biology |
| QK | Botany |
| QL | Zoology |
| S | Agriculture |
| SB | Plant Culture |
| SD | Forestry |
| SF | Animal Culture |
| SH | Aquaculture |
| TA 703-712 | Engineering Geology, Soil Mechanics |
| TC 401-948 | Water Engineering including flood control, dams, irrigation, etc. |
| TD | Environmental Technology |
