So much of the said recited Act as requires that persons to be admitted notaries public shall have served a clerkship or apprenticeship for seven years, as herein-before mentioned,shall, so far as the same affects persons being attornies, solicitors, or proctors admitted as herein-after mentioned be limited and confined to the city of London and liberties of Westminster, the borough of Southwark, and the circuit of ten miles from the Royal Exchange in the said city of London.