SEA-Weed, or Alga Marina, is commonly used as a manure in those places where it can be had in plenty. The best is that cut from the rocks, and of which kelp is made. The second best is that called the peaty sort, and the worst is that with a long stalk. This kind of manure is used chiefly for the barley-crop; in which case, or for fallow, it is ploughed in directly. The people of the country have such an high opinion of its fertilizing qualities, that they sometimes lay it on after the barley is in the ground; but that is a slovenly and injudicious method. In the neighbourhood of Berwick, it is used in their compound dunghills, with fold-yard, stable-dung, and earth; and in that manner an immense quantity of dung is produced by such farmers as are situated near the sea. It is remarkable, that such farmers as use the sea-weed properly, have their lands in such heart as seldom to have occasion for a fallow to restore their freshness. This species of manure is experimentally found to be excellent for gardens, as it not only enriches the ground, but destroys all the kinds of vermin.