Classification
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
170 - Ethics
200 - Religion
363 - Other social problems & services
1
500 - Natural sciences & mathematics
530 - Physics
1
580 - Plants (Botany)
581 - Specific topics in natural history
1
700 - The arts; fine & decorative arts