All the steamers engaged in the Liverpool and Glasgow trade prior to 1839 were built of wood, but in that year a new steamship company entered into competition with the existing companies, and placed the ROYAL SOVEREIGN, an iron steamer, on the station., The immediate result was a heavy drop in passenger and freight rates. Steerage passengers were carried for 1s. each, and boxes and bale goods for 1d. per foot measurement. The following year (1840) a mail steamship service between Liverpool, Canada, and U.S.A. was established, the respective agents of the company being D. and C. MacIver, Liverpool; J. and G. Burns, Glasgow; and Samuel Cunard, Halifax. This service, which afterwards acquired a world-wide reputation as the “Cunard line,” was modestly inaugurated by the despatch of the Liverpool and Glasgow steampacket UNICORN (Captain Douglas). This vessel (the real pioneer of the Cunard line) sailed from Liverpool for Halifax and Boston on Saturday morning, 16th May, 1840. After she completed her outward voyage, she continued to ply between Pictou and Quebec in connection between the British and N.A. Royal mail steamers. Although there were three perfectly distinct steamship companies trading between Liverpool and Glasgow, yet so friendly were the respective owners towards each other that in 1846 they issued a joint sailing bill, which included the whole of the sailings for all the companies. This arrangement continued unchanged for seven years (1853), at the end of which period the PRINCESS ROYAL was advertised separately. At this date the quickest, cheapest (although the fares were double what they now are), and most comfortable mode of travelling between Liverpool and Glasgow was by steamer. The steamers were large, swift, and luxuriously furnished, and so numerous were the passengers that the joint companies maintained a daily service. From the year 1853 the two services, the MacIver and the Burns, were amalgamated, the joint line being represented in Liverpool by Chas. MacIver & Co., and in Glasgow by G. and J. Burns. In 1850 Messrs. Chas. MacIver & Co. instituted the steamship service between Liverpool and Havre, the pioneer steamer being the COMMODORE, the well-known Liverpool and Glasgow steampacket. About the same date the steamship services to the Mediterranean were begun by Messrs. MacIver, under the style of Messrs. Burns and MacIver. Until the year 1853 no distinctive class of name had been adopted for the coasting steamers of the MacIver line, but in that year the ELK and STAG were built, followed by the LYNX and STORK. These were the last of the paddle-steamers built to run between Liverpool and Glasgow. In 1855 the owners decided to place screw-steamers on this station, and accordingly built the screw-steamers OTTER, BEAVER, and ZEBRA. The ZEBRA was a large and powerful vessel, and was amongst the earliest of the steamers taken up by Government for transport duty during the Crimean war. All the