SUBJECT
History
8
Mathematics
7
Science
5
Mathematics, Greek
3
Philosophy
3
Astronomy, Chinese
2
History and criticism
2
Astronomy
1
Astronomy, Arab
1
Astronomy, Greek
1
Biology
1
Botany, Medical
1
CARL (Computer system)
1
Computers
1
Cybernetics
1
Ecology
1
Ethnology
1
Geology
1
Geology, Stratigraphic
1
Geometry
1
Hindu astronomy
1
Man -- Origin -- Congresses
1
Materia, Medica, Vegetable
1
Mathematics, Ancient
1
Mathematics, Chinese
1
Mathematics, Egyptian
1
Medicinal plants
1
Music, Greek and Roman
1
Natural history
1
Operating systems (Computers)
1
Physics
1
Platonic number
1
Pleistocene
1
Pyramids
1
Science and civilization
1
Science, Medieval
1
Science, Renaissance
1
Social aspects
1
Technology
1