No sketch of Auckland's shipping history would be complete without some reference, however brief, to the Circular Saw Line, which was established by Messrs. Henderson and Macfarlane, two of Auckland's pioneers. Mr. Henderson arrived in New Zealand in 1842, and some years later he was joined by Mr. Macfarlane. About 1846 they established a timber business at Henderson, and later erected a mill there. Among the places to which they exported kauri was Mauritius, the vessels which took the timber returning with cargoes of sugar. It may have been this enterprise which encouraged them to establish the fleet some time in the 'fifties. Commencing with the brig _Spenser_, Mr. Henderson made the first trip to Melbourne. While there he purchased the schooner _Will o' the Wisp_, and established the inter-colonial trade. The brigs (of which class of vessel he owned six) and barques (of which no fewer than fifteen flew the flag of this line) were employed in the inter-colonial and 'Frisco services. The schooners, numbering fourteen, did the Island trade. Before the dissolution of the line in 1875, four steamers were added to the fleet, which were bought from the Panama Company. These vessels were placed in the New Zealand coastal service, plying from Onehunga. In the 'fifties and 'sixties there were a number of cutters and schooners, owned and manned by Maoris, which traded between Auckland and various ports on the East Coast, sailing as far south as the Bay of Plenty. White traders also participated in the coastal trade, amongst whom was Mr. H. J. Wadham, stevedore, of Auckland, who owned a number of fine vessels, drawings of which have recently been presented to the Old Colonists' Museum. During the first two or three decades of the port's history, most of the shipping was by sail, and as the movements of these sailers were erratic, a continuous record is a rather difficult matter. With the advent of steam in the 'fifties, and its development in the following years, a more satisfactory account is possible.