1. Telegraphie   sociology   telepathy   economics   telegraphy   Hint Half-n-half Clue   2. Anthropologie   ornithology   etiology, aetiology   anthropology   economics   Half-n-half Clue   3. Vogelkunde   calligraphy   ornithology   telegraphy   archeology, archaeology   Half-n-half Clue   4. Buchhaltung   telepathy   accountancy   calligraphy   aeronautics   Half-n-half Clue   5. Radiologie   radiology   anthropology   ornithology   telepathy   Half-n-half Clue   6. Astrologie   calligraphy   aeronautics   cosmetology   astrology   Half-n-half Clue   7. Topologie   accountancy   topology   aeronautics   anthropology   Half-n-half Clue