1. Telegraphie   rheology   anthropology   telegraphy   accountancy   Hint Half-n-half Clue   2. Aeronautik   rheology   etiology, aetiology   seismology   aeronautics   Half-n-half Clue   3. Soziologie   astrology   sociology   anthropology   telepathy   Half-n-half Clue   4. Anthropologie   etiology, aetiology   calligraphy   anthropology   archeology, archaeology   Half-n-half Clue   5. Topologie   choreography   topology   economics   accountancy   Half-n-half Clue   6. Ätiologie   telepathy   cosmetology   archeology, archaeology   etiology, aetiology   Half-n-half Clue   7. Vogelkunde   sociology   aeronautics   choreography   ornithology   Half-n-half Clue