Subject (Topic)
- Philology58
- Language and languages48
- Study and teaching47
- Intellectual life43
- Ethnology30
- German30
- Photography30
- Photography, Artistic30
- Serbo-Croatian language28
- Geodesy27
- Russian26
- Purim--Humor.25
- History, Military24
- Bibliography20
- Slavic languages19
- Ukrainian literature18
- Antiquities17
- Technology17
- Commerce16
- Passover--Humor.15