An Act to defray the Charge of the Pay, Clothing and Contingent Expences of the Disembodied Militia in Great Britain; and for granting Allowances in certain cases to Subaltern Officers, Adjutants, Quartermasters, Surgeons, Surgeons' Mates and Serjeant Majors of Militia, until the Twenty-fifth Day of March One thousand eight hundred and nineteen.