| Description | The docket is on a separate wrapper.
Report on the Walker Colliery pumping engine with an addendum of 20 Mar.; Willington rotative engine, examined 17 Jan. 1798; Heaton rotative engine; Wall’s End engine; Lawson Main; Messrs. Grimshaw & Co.’s engine at Sunderland; Mr. Pickernell’s boat engine; Small engines wanted. |