In the peat Nos. 1, 2, and 3, roots and twigs of oak occurred, and in the peat Nos. 6 and 8 were many twigs and boughs of oak, also stouter pieces of sallow. The cross-section taken along the line [AB] shows the present surface of the ground, with the oak piles, hazel stakes, planks, beams, &c., found in the excavation, also the high water-mark of average spring tides, and the depth of the peat—where proved. Any implements, or other relics that may have remained in this site, must have been long since washed away. A few antiquities are said to have been discovered in the Ardmore peat, but not within the bounds of the crannog, so that some charcoal found in one spot, two feet below the surface, and the “kitchen midden”—which at the close of 1880 became exposed by the action of the sea—form the only traces remaining of man’s former presence in this abode.[239]
On Arranmore island, in the Bay of Galway, the Rev. W. Kilbride discovered habitations and artificial structures extending from above high water-mark to under the low water-level of spring tides: from this it may be inferred that man existed in Ireland before the last subsidence of the land. The Irish Annals contain much that was formerly looked upon as fabulous relations of inbreaks of the ocean, but which may be reasonably held to be the reflex of traditionary tales having some foundation in fact. Geologists assert that at one time Great Britain and Ireland were connected with the Continent by a great level plain, over which roamed the Megaceros, so that even within the period of the existence of this animal, whose contemporaneity with man may be considered beyond dispute, both seas and continents have changed.
There are proofs of elevation and subsidence in the Bay of Baiæ, where the Temple of Jupiter Serapis “affords in itself alone unequivocal evidence that the relative level of land and sea have changed twice at Puzzuoli since the beginning of the Christian era; and each movement, both of elevation and subsidence, has exceeded twenty feet.”[240] It is difficult to decide whether the crannog at Ardmore had, like the Temple of Jupiter, subsided with the land, and had again been elevated: the denudation of the crannog may point to the possibility of the latter hypothesis.
COUNTY LIMERICK.
A crannog was discovered in this county during the working of the Arterial Drainage Commissioners. Site unidentified.
Coolcranoge.—Ante, p. [28].
Knockanny.—Ante, p. [156].
