All courts of record and all existing courts which are not specified in this Constitution shall continue in existence until the first day of December, in the year one thousand eight hundred and seventy-five, without abridgment of their present jurisdiction, but no longer. The court of first criminal jurisdiction for the counties of Schuylkill, Lebanon and Dauphin is hereby abolished, and all causes and proceedings pending therein in the county of Schuylkill shall be tried and disposed of in the courts of oyer and terminer and quarter sessions of the peace of said county.