Section 18. Until the General Assembly shall otherwise provide, the Chancellor and the Vice-Chancellor or Vice-Chancellors, respectively, shall exercise all the powers which any law of this State vests in the Chancellor, besides the general powers of the Court of Chancery, and the President Judge of the Superior Court and of the Orphans' Court and the Associate Judges of said Courts shall each singly exercise all the powers which any law of this State vests in the Judges singly of the former Superior Court, whether as members of the Court or otherwise.