Classification
548 - Crystallography
103
530 - Physics
101
541 - Physical chemistry
35
539 - Modern physics
34
546 - Inorganic chemistry
18
549 - Mineralogy
16
621 - Applied physics
15
620 - Engineering & allied operations
10
543 - Analytical chemistry
9
571 - Physiology & related subjects
7
536 - Heat
4
547 - Organic chemistry
4
531 - Classical mechanics; solid mechanics
2
537 - Electricity & electronics
2
538 - Magnetism
2
572 - Biochemistry
2
616 - Diseases
2
040 - [Unassigned]
1
514 - Topology
1
516 - Geometry
1
641 - Food & drink
1
660 - Chemical engineering
1
664 - Food technology
1