PILE-Worms, are a kind of worms found in the piles of the sea-dikes in Holland. They are of very various sizes; for some of the young ones are not above an inch or two in length, while others have been found thirteen or fourteen inches long. The heads of these creatures are covered with two hard shells or hemispheres, which together form a figure resembling an auger; and with which they bore the wood. The best remedy against them is, to perforate the pile with many small holes about an inch apart; then it must be done over with a varnish in the hottest sun; and, while the varnish is hot, brick dust must be sprinkled over it; and this being several times repeated, the pile will be covered with a strong crust absolutely impenetrable to all insects.