Classification
520 - Astronomy & allied sciences
37
530 - Physics
10
330 - Economics
5
340 - Law
5
320 - Political science
4
740 - Drawing & decorative arts
3
910 - Geography & travel
3
500 - Natural sciences & mathematics
2
680 - Manufacture for specific uses
2
820 - English & Old English literatures
2
004 - Data processing & computer science
1
160 - Logic
1
380 - Commerce, communications & transportation
1
600 - Technology
1