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