By the turn of the 20th century the premiership had become, by convention, the most important position in the constitutional hierarchy. Yet there were no legal documents describing its powers or acknowledging its existence. The first official recognition given to the office had only been in the Treaty of Berlin in 1878, when Disraeli signed as "First Lord of the Treasury and Prime Minister of her Britannic Majesty". Not until seven years later, in 1885, did the official records entrench the institution of Prime Minister, using "Prime Minister" in the list of government ministers printed in Hansard. Incumbents had no statutory authority in their own right. As late as 1904, Arthur Balfour explained the status of his office in a speech at Haddington: "The Prime Minister has no salary as Prime Minister. He has no statutory duties as Prime Minister, his name occurs in no Acts of Parliament, and though holding the most important place in the constitutional hierarchy, he has no place which is recognised by the laws of his country. This is a strange paradox."