An Act amending Title 20 (Decedents, Estates and Fiduciaries) of the Pennsylvania Consolidated Statutes, reducing the time for advertisement of accounts to two weeks; adding a section providing that documents submitted to the register of wills, except for probate, may be attested to by an affidavit or a verified statement; broadening the class of property deemed disclaimed when a spouse takes an elective share; avoiding automatic modification of wills and inter vivos conveyances that are made in contemplation of a marriage or divorce; adding a rule of interpretation for wills and conveyances regarding corporate fiduciaries; confirming existing law that a gift to any unfunded trust is valid; permitting a parent to appoint by will a guardian of the person of an adult incompetent child; adding a chapter relating to contracts concerning succession; authorizing personal representatives to make certain temporary investments; allowing fiduciaries to hold certain securities in book-entry form; further providing for notice to parties in interest; further providing for rights of claimants.