The “crannoges” or “wooden islands,” of Ireland and Scotland, resemble very much the Swiss fascine dwellings. The Irish “crannoges” were often placed on natural islands, or on shallows or loughs, but sometimes were built up, like those in Switzerland, from the bottom of the lake. These “crannoges” were used as chieftains’ fastnesses or places of retreat. They were built chiefly in the Stone age, and were used long after the age of Iron. At Fig. 79, E, may be seen a section of an Irish “crannoge” in Ardakillin Lough. At Fig. 79, F and D, are shown diagrams of platform and floor construction respectively of a lake dwelling at Niederwyl, Switzerland. On the top of this floor a plaster made of mud, loam, and gravel, was laid and beaten firmly down. As far as can be ascertained from the remains of upright corner posts that have been found in position, the houses were rectangular, though some may have been round like the huts of the contemporary people on the mainland. The walls of the houses are supposed to have been built of wattle-work plastered over with mud and thatched, as evidences of this are seen in the large pieces of burnt clay with wattle impression on it that have been found; this also points out the fact of the houses or settlements being burnt down. In some cases the walls were of fascine construction. Every hut was provided with its hearth, which consisted of three or four large flat stones. Clay weights used for the loom have been found in great quantities, which proves, together with many fragments of flax cloth and woven “bast” which have come to light, that weaving was known and practised by the lake dwellers (Fig. 81, K). Pottery has been found in the relic beds, but is usually of a very coarse description. Many broken bits of pottery have been found ornamented with lines, chevrons, or zigzags, and often with the “rope” ornament, raised or impressed by a twisted string or rope; this kind of decoration is evidently suggested by the band of string tied around the primitive vessels of clay to keep them together, or for carrying purposes. See Fig. 81, B, F, G, H, I, and J. [Illustration: Fig. 81.—Objects from the Lake Dwellings (from Keller).] A, Bronze Knife (Lake of Bienne); B, Ornamented Pottery; C, Moon Image of earthenware; D, Part of an Iron Sword (Gaulish work); E, Moon Image of bronze; F, G, H, I, J, Earthenware Vessels; K, Embroidered Cloth. The builders of the lake dwellings are supposed to have been a branch of the Celtic population of Switzerland, belonging to prehistoric times, and was in its last stage of decadence before the Celts took their place in the history of Europe. Although many remains of bronze and iron implements have been brought to light from the relic beds of the lake dwellings, this does not prove that the inhabitants were acquainted with their manufacture, for most of the articles were probably obtained by barter from the people of the mainland.