Classification
900 - History & geography
9
410 - Linguistics
6
400 - Language
4
510 - Mathematics
3
142 - Critical philosophy
2
200 - Religion
2
320 - Political science
2
380 - Commerce, communications & transportation
2
415 - Grammar
2
700 - The arts; fine & decorative arts
2
770 - Photography, photographs & computer art
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
180 - Ancient, medieval & eastern philosophy
1
193 - Philosophy of Germany & Austria
1
224 - Prophetic books of Old Testament
1
398 - Folklore
1
401 - Philosophy & theory
1
409 - Geographic & persons treatment
1
440 - Romance languages; French
1
509 - Historical, geographic & persons treatment
1
516 - Geometry
1
560 - Paleontology; paleozoology
1
616 - Diseases
1
621 - Applied physics
1
681 - Precision instruments & other devices
1
722 - Architecture to ca. 300
1
792 - Stage presentations
1
809 - History, description & criticism
1
820 - English & Old English literatures
1
930 - History of ancient world to ca. 499
1
936 - Europe north & west of Italy to ca. 499
1
938 - Greece to 323
1
939 - Other parts of ancient world to ca. 640
1
942 - England & Wales
1
954 - South Asia; India
1
959 - Southeast Asia
1