To browse books pertaining to Biology, refer to the following Library of Congress Classification (LCC) subclasses. These codes mark the beginning of the call number on each book’s spine and help you locate materials on the shelves by subject.
| Subclass | Subject |
|---|---|
| QH1-278.5 | Natural history (General) |
| QH1-(199.5) | General (Including nature conservation, geographical distribution) |
| QH201-278.5 | Microscopy |
| QH301-705.5 | Biology (General) |
| QH359-425 | Evolution |
| QH426-470 | Genetics |
| QH471-489 | Reproduction |
| QH501-531 | Life |
| QH540-549.5 | Ecology |
| QH573-671 | Cytology |
| QH705-705.5 | Economic biology |
| QK1-989 | Botany |
| QK1-474.5 | General (Including geographical distribution) |
| QK474.8-495 | Spermatophyta. Phanerogams |
| QK494-494.5 | Gymnosperms |
| QK495 | Angiosperms |
| QK504-(638) | Cryptogams |
| QK640-(707) | Plant anatomy |
| QK710-899 | Plant physiology |
| QK900-989 | Plant ecology |
| QL1-991 | Zoology |
| QL1-355 | General (Including geographical distribution) |
| QL360-599.82 | Invertebrates |
| QL461-599.82 | Insects |
| QL605-739.8 | Chordates. Vertebrates |
| QL614-639.8 | Fishes |
| QL640-669.3 | Reptiles and amphibians |
| QL671-699 | Birds |
| QL700-739.8 | Mammals |
| QL750-795 | Animal behavior |
| QL791-795 | Stories and anecdotes |
| QL799-799.5 | Morphology |
| QL801-950.9 | Anatomy |
| QL951-991 | Embryology |
| QR1-502 | Microbiology |
| QR1-74.5 | General |
| QR75-99.5 | Bacteria |
| QR99.6-99.8 | Cyanobacteria |
| QR100-130 | Microbial ecology |
| QR171 | Microorganisms in the animal body |
| QR180-189.5 | Immunology |
| QR355-502 | Virology |