Barry Docks of leads to the dock basin entrance. The channel has a least depth of , with a depth of at spring tides and at neap tides. At high-water spring tides the depth of water at the entrance to the basin is . At high-water neap tides it is . There are several moorings for yachts and small craft on the west of the tidal basin. The original entrance to the docks is wide, with two wrought-iron gates operated by direct acting hydraulic cylinders. This sea entrance leads into the Basin, (rarely called No.3 dock), that is and covers . At
Disquisitions relating to Matter and Spirit Disquisitions relating to Matter and Spirit Disquisitions relating to Matter and Spirit (1777) is a major work of metaphysics written by eighteenth-century British polymath Joseph Priestley and published by Joseph Johnson. Between 1774 and 1778, while he was serving as an assistant to Lord Shelburne, Priestley wrote five major metaphysical works, in which he outlined his materialist philosophy, even though such a position "entailed denial of free will and the soul." In the first of these works, "The Examination of Dr. Reid's Inquiry. . . Dr. Beattie's Essay. . . and Dr. Oswald's Appeal" (1774), Priestley had strongly suggested that