An Act to continue until the First Day of June One thousand eight hundred and ten, and from thence to the End of the then next Session of Parliament, and amend an Act of the Forty second Year of His present Majesty, for more effectual Administration of the Office of a Justice of the Peace in such Parts of the Counties of Middlesex and Surrey as lie in and near the Metropolis; and for the more effectual Prevention of Felonies.