All unexpended and unencumbered balances of appropriations made from all funds of the State Treasury by the General Assembly at its regular sessions of one thousand nine hundred and forty-one and one thousand nine hundred and forty-three and the special sessions of one thousand nine hundred and forty and one thousand nine hundred and forty-two, which shall remain unexpended and unencumbered on the effective date of this act, shall lapse on that date.
72 P.S. § 3423.5