square sail, hoisted occasionally on the mast of a boat, or small vessel, upon a yard which hangs nearly at right angles with the mast. These are more particularly used in the barca longas, navigated by the Spaniards in the Mediterranean.

Lugdunum, (anc. geogr.), the capital of the Segusiavi in Gallia Celtica, situated at the conflux of the Arar and Rhodanus, on an eminence, as the Celtic term dune signifies; built by Manutius Plancus under Augustus, while commanding in that part of Gaul; and whither he led a colony. Now Lyons, capital of the Lyones.

Lugdunum Batavorum, (anc. geogr.), a town of the Batavi in Gallia Belgica. Now Leyden in Holland.

Lugdunum Convenarum, (anc. geogr.) a town of Gaul in Aquitain, at the foot of the Pyrenees. Now S. Bertrand, in Gafcony.

Lugeus lacus, (anc. geogr.) a lake of Japydia, the westmost district of Illyricum, to the south of the Save, and near the head of the Artia. Now commonly called the Zirichnitz Lake, from a small adjoining town; it is locked on every side with mountains; from which scanty currents run down; the less in quantity their waters, because drunk up by the earth; till at length they are swallowed up in rocky furrows so formed, as to resemble artificial. In these the water being so redundant, as to refuse receiving any more, they regurgitate, and return the water with extraordinary celerity; which thus spreading itself, forms a lake, in most places 13 cubits high; and these waters afterwards retire with no less celerity than they came on, not only through the furrows, but pass through the whole of the bottom, as through a sieve; which when perceived by the inhabitants, they directly stop up the larger apertures, and thus take large quantities of fish: when the lake is dry, they cut down their harvest on the spot where they sowed, and sow again before the inundation comes on; and graft shoots to quicken on it, that it may be cut down in three weeks time, (Lazius, Wernherus.)