Classification
900 - History & geography
200 - Religion
2
320 - Political science
2
800 - Literature & rhetoric
2
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
398 - Folklore
1
410 - Linguistics
1
540 - Chemistry & allied sciences
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1