[Of the numerous rivers in Wiltshire only a few are navigable, and those only for a short distance in the county. This is the consequence of its inland position and comparative elevation; whence it results that the principal streams have little more than their sources within its limits. The project of rendering the Avon navigable from Salisbury to Christ Church appears to have been first promulgated by John Taylor, the Water Poet, who, in 1625, made an excursion in his own sherry, with five companions, from London to Christ Church, and thence up the Avon to Salisbury. He published an account of his voyage, under the title of “A Discovery by sea, from London to Salisbury.” Francis Mathew also suggested the improvement of the navigation of the river in 1655; and an Act of Parliament for that purpose was obtained in 1664. Bishop Ward was translated to the see of Salisbury in 1667, but the commencement of the works, as described by Aubrey, was probably delayed till 1669, in August of which year the Mayor of Salisbury and others were constituted a Committee “to consult and treat with such persons as will undertake to render the Avon navigable.” Two other pamphlets urging the importance of the project were published in 1672 and 1675 (see Gough’s Topography, vol. ii. p. 366); and in 1687 a series of regulations was compiled “for the good and orderly government and usage of the New Haven and Pier now made near Christchurch, and of the passages made navigable from thence to the city of New Sarum.” (See Hatcher’s History of Salisbury, pp. 460, 497.) The works thus made were afterwards destroyed by a flood, and remained in ruins till 1771. Some repairs were then executed, but they were inefficient; and the navigation is now given up, except at the mouth of the river; and even there the bar of Christchurch is an insurmountable obstacle except at spring tides.-(Penny Cyclopædia, art. Wiltshire.) As the Bishop dug the first spitt, or spadeful of earth, and drove the first wheelbarrow, that necessary process was no doubt made a matter of much ceremony. The laying the “first stone” of an important building has always been an event duly celebrated; and the practice of some distinguished individual “digging the first spitt” of earth has lately been revived with much pomp and parade, in connection with the great railway undertakings of the present age.—J. B.]