Nothing in this Act contained shall extend or be applicable to the Port of London, or to the River Thames within the Limits denned by "The Thames Conservancy Act, 1857," nor to the Port and Harbour of Liverpool, or to the River Mersey, as denned by an Act passed in the Fifth and Sixth Tears of the Reign of Her present Majesty, intituled An Act for better preserving the Navigation of the River Mersey, nor to the Port and Harbour of Glasgow and the Limits of the River Clyde, as defined by " The Clyde Navigation Consolidation Act, 1858," nor to the Port and Haven of Sunderland and River Wear, within the Limits denned by " The River Wear and Sunderland Dock Act, 1859," nor to the Port of Kingston-upon-Hull or the River Humber, within the Limits defined by " The River Humber Conservancy Act, 1852," nor to the River Tyne or to the Port and Harbour of Newcastle-upon-Tyne, and the Limits thereof as denned by " The Tyne Improvement Act, 1850."