The herring, pilchard, sprat, anchovy, and several other species, are arranged by icthyologists under the genus clupea; the herring and pilchard being adjacent to each other. The pilchard is rather less in size than the herring, has larger and firmer scales, and contains much more oil. There is one discriminating circumstance quite obvious; the pilchard, suspended by its dorsal fin, remains in equilibrio, while the herring, under similar circumstances, dips towards its head. The pier was built under the authority of an Act of Parliament passed in the year 1767, after a personal survey and a report from the celebrated Mr. Smeaton, which is printed in his works. This shelter from every wind has equally tended to improve the fishery, to increase the general trade of the place, and to protect vessels bound for Hayle; but the fishery is indebted in a still greater degree to another Act of Parliament, carried through the legislature by the late Mr. Humphry Mackworth Praed, who had the honour first of representing this place, and then the county. A caution had existed time of mind, by which any boat provided with a seyne net, having taken possession of one of the favourable stations or stems, might retain it till the net had been used to inclose a shoal, or, according to the technical expression, had been shot; and this right extended from one season to another: persons in possession of a stem were therefore unwilling to lose it, except for a considerable prize, and small shoals were generally allowed to escape. By Mr. Praed’s Act, so great and so beneficial a change was made, that, arranging the succession in an equitable manner, it allowed each boat to hold its stem but for twenty-four hours, and consequently every shoal, however small, was eagerly secured. The nets are preserved for a long succession of years by steeping them in a decoction of oak bark as frequently as they are used; and, what would scarcely have been expected, the fish oil without this preservative, would destroy the twine in a very short time. It seems that these nets must have been originally introduced from Dungarvon in Ireland, since they are still said to be braided according to the Dungarvon mesh, but no similar fishery is remembered at that place. Fish, however, of all kinds not only migrate through distant seas, but without any known cause, frequently leave one part of a coast and resort to another, returning after uncertain intervals to their former haunts. There is one custom at St. Ives, of which the origin and specific meaning are entirely lost. So soon as shoals of pilchards are discovered in the bay, all the people, and more especially the children, run round the town shouting, HEVA! HEVA! with all their might.