At Armacost Library, books are organized with the Library of Congress classification system, and are grouped together by topic. Refer to the following while browsing through the stacks.
- QB: Astronomy
- QC: Physics
- QC 1-175: General physics
- QC 81-114: Weights and measures
- QC 120-168.85: Mechanics
- 170-197: Matter, molecular physics, relativity, quantum theory, and solid state physics
- QC 221-246: Acoustics, sound
- QC 251-338.5: Heat, thermodynamics
- QC 350-467: Optics, light, spectroscopy
- QC 474-496.9: Radiation physics
- QC 501-766: Electricity and magnetism
- QC 770-798: Nuclear and particle physics, atomic energy, radioactivity
- QC 801-809: Geophysics, cosmic physics
- QC 811-849; Geomagnetism
- QC 851-999: Meteorology, climatology