1. Soziologie   sociology   radiology   accountancy   etiology, aetiology   Hint Half-n-half Clue   2. Kosmetik   economics   ornithology   cosmetology   sociology   Half-n-half Clue   3. wirtschaftlich   accountancy   telegraphy   theology   economics   Half-n-half Clue   4. Vogelkunde   telepathy   ornithology   seismology   astrology   Half-n-half Clue   5. Entomologie   calligraphy   entomology   topology   sociology   Half-n-half Clue   6. Kalligraphie   anthropology   entomology   telepathy   calligraphy   Half-n-half Clue   7. Telegraphie   telegraphy   radiology   etiology, aetiology   ornithology   Half-n-half Clue