"Frodsham Lock. Sluice"
Copy of correspondence relating to Manchester Ship Canal Act 1904 (turbines at Weston Marsh Lock and Sluices at Sutton); tables of "depth of water on Bolton Sill at Weston Marsh Lock" (1907); "M[anchester] S[hip] Canal Act 1904. Proposed additional sluices at Sutton Weir. Preliminary figures"; correspondence regarding Frodsham sluices