But at higher levels in the valley of the Forth, and further from the sea, still more remarkable evidences of the primitive occupants of the country have been found. The ingenious operations by which the Blair Drummond moss has been converted into fertile fields have rendered it famous in the annals of modern engineering and agriculture. In the Carse lands, of which it forms a part, there was discovered in the year 1819, at a distance of a mile from the river, and in an alluvial soil, covered with a thin moss, the surface of which stood some twenty-five feet above the full tide of the Forth, the skeleton of a whale, with a perforated lance or harpoon of deer's horn beside it. A few years later another whale was found, and in 1824 a third was disclosed on the Blair Drummond estate seven miles further inland, and overlaid with a thick bed of moss. Beside it also lay the rude harpoon of the hardy Caledonian whaler; in this instance retaining, owing to the preservative nature of the moss, some remains of the wooden handle by which the pointed lance of deer's horn was wielded.[39] This primitive relic is now deposited, along with the fossil remains of the whale, whose death-wound it may have given, in the Natural History Museum of the Edinburgh University. Professor Owen remarks, in referring to this class of fossils,--"Although these depositories belong to very recent periods in geology, the situations of the cetaceous fossils generally indicate a gain of dry land from the sea. Thus the skeleton of a balænoptera, seventy-two feet in length, found imbedded in clay on the banks of the Forth, was more than twenty feet above the reach of the highest tide. Several bones of a whale discovered at Dunmore rock, Stirlingshire, in brick-earth, were nearly forty feet above the present level of the sea.... I might add other instances of the discovery of cetaceous remains in positions to which, in the present condition of the dry land of England, the sea cannot reach; yet the soil in which these remains are imbedded is alluvial or amongst the most recent formation. In most cases the situation indicates the former existence there of an estuary that has been filled up by deposits of the present sea, or the bottom of which has been upheaved."[40] Other relics besides those of the whale and the implement of its hardy assailant, were recovered in the course of removing the Blair Drummond moss. In the collection of the Society of Antiquaries of Scotland, a rude querne or hand-mill for pounding grain is preserved, fashioned from the section of an oak tree, which was found in 1831, at a depth of nearly five feet, in this moss. A wooden wheel of ingenious construction is also in the collection, which was dug up at more than double the depth of the querne, in the same locality, accompanied with several well-formed arrow-heads of flint. It measured when complete about two feet in diameter; but it is greatly decayed, having shrunk and cracked