1. ornitologia   topology   accountancy   ornithology   calligraphy   Hint Half-n-half Clue   2. aeronautica   aeronautics   rheology   topology   seismology   Half-n-half Clue   3. topologia   calligraphy   topology   ornithology   cosmetology   Half-n-half Clue   4. radiologia   radiology   etiology, aetiology   choreography   economics   Half-n-half Clue   5. cosmetologia   cosmetology   seismology   telepathy   anthropology   Half-n-half Clue   6. economico   telepathy   archeology, archaeology   economics   radiology   Half-n-half Clue   7. telepatia   astrology   telepathy   etiology, aetiology   accountancy   Half-n-half Clue