Classification
610 - Medicine & health
5
580 - Plants (Botany)
4
000 - Computer science, information & general works
3
700 - The arts; fine & decorative arts
3
333 - Economics of land & energy
2
540 - Chemistry & allied sciences
2
140 - Specific philosophical schools
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1
800 - Literature & rhetoric
1