It touches but one other county, Devonshire, on the east; on all other sides it is washed by the sea, the Atlantic on the north and the English Channel on the south. The heel is the curious projection of the Lizard, and the toe is Land's End. On the east the river Tamar forms mainly the boundary between itself and Devon, except just north of Launceston, where a small portion of Devonshire juts into Cornwall, bounded on the south by the river Attery, and comprising the parishes of North Petherwin and Werrington. This is due to the land in these parishes having belonged to the Abbey of Tavistock, and the monks desiring to have all their lands comprised in one county. The area of Cornwall is 886,384 acres, or 1385 square miles. [Illustration: The Tamar, near Calstock] It is the most westerly county in England, and also the most southerly. Its greatest length from the N.E. corner beyond Morwenstow to the Land's End is 80 miles; and its greatest breadth between Marsland Mouth and Rame Head is 46 miles. But it shrinks towards the toe, and between St Ives' Bay and Mounts Bay it is not five miles across. The Scilly Isles, situated twenty-five miles S.W. from the Land's End, are a part of Cornwall, and have an area of 4041 acres. Formerly, a part of the township of Bridgerule, with 1010 acres on the Devon side of the Tamar, belonged to Cornwall, but has now been dissevered and annexed to Devonshire. The north coast is sadly deficient in harbours. Bude Haven can accommodate only the smallest vessels, Boscastle is a dangerous creek, Padstow Harbour is barred by the Doom Bank lying across the entrance, and there is none other till we reach St Ives' Bay. On the south coast are Mounts Bay, Falmouth, Charlestown in St Austell Bay, Par, Fowey, Looe, Cawsand Bay, and the Hamoaze that opens into Plymouth Sound. Of these only Falmouth Harbour, once the great station for the packet boats, is good. The Scilly Isles comprise 145 rocky masses, six only are large islands, and five only are inhabited. The other inhabited islands about Cornwall are very small, these are St Michael's Mount and Looe Island. The promontory of Lleyn in Cardiganshire presents a curious resemblance to Cornwall, and as Cornwall has its detached group of islands in Scilly, so Lleyn has its Bardsey. [Illustration: Grimsby Channel and Eastern Islands, Scilly] =4. Surface and General Features.= [Illustration: Bodmin]