1. sociology   Soziologie   Topologie   Theologie   Choreographie   Hint Half-n-half Clue   2. etiology, aetiology   Archäologie   Ätiologie   Buchhaltung   Seismologie   Half-n-half Clue   3. cosmetology   Buchhaltung   Seismologie   Kosmetik   Astrologie   Half-n-half Clue   4. rheology   Anthropologie   Telegraphie   Rheologie   Buchhaltung   Half-n-half Clue   5. calligraphy   Entomologie   Kalligraphie   Rheologie   Soziologie   Half-n-half Clue   6. ornithology   Rheologie   Aeronautik   Vogelkunde   Kalligraphie   Half-n-half Clue   7. astrology   Astrologie   Entomologie   Ätiologie   Kosmetik   Half-n-half Clue