Napier is still in use in Mr. Boak's spinning factory at Dundee. His first essay at marine engineering was a contract undertaken in 1823, to build the engines for the Leven, a small paddle-steamer that used to ply between Glasgow and Dumbarton. When the Leven had been "put on the shelf," after having served its day, the engines were taken from her and removed to the Vulcan Foundry in Washington Street, to which Mr. Napier subsequently removed, and where these interesting memorials of the early history of a trade which has since assumed such gigantic proportions may still be viewed. Succeeding his cousin in the Lancefield Foundry, as he had previously succeeded him in Camlachie, Mr. Napier was enabled, by the acquisition of better facilities to undertake a much larger amount of work, and with Mr. David Elder, an engineer of much experience and inventive genius, as his manager, he speedily laid the foundations of an altogether exceptional reputation as a marine engineer. In 1826 he engined the Eclipse, a vessel employed on the Glasgow and Belfast route; and in 1830 he became connected with the City of Glasgow Steam Packet Company, projected for the purpose of running first-class vessels between Glasgow and Liverpool, through which his maritime influence acquired an additional impetus. Indeed, from this time forward, no steamship company of any importance was started on the Clyde without Mr. Napier being called in to consult. In the year 1834, he contracted for and engined several vessels for the Dundee and London Shipping Company, of which Mr. George Duncan, late M.P. for Dundee, and a very warm friend of Mr. Napier's, was a leading director. The Clyde-built vessels belonging to this concern were admired by all who saw them, and they presented a marked contrast to the other steamers that were to be seen in the London Docks.