Bonnet
a head dress; a dress or the introduction of hats, and still worn a cap or head covering , much used before by the Scotch Highlanders. parapet about the salient angle of a In fortification, the elevation of the bastion or ravelin above the general level of the work . The name is also given in permanent defensive works to a little outwork with two faces, forming a salient angle, intended to protect the angle of a ravelin, the faces of which are defended by tenaillons or lunettes. An outwork of having three salient angles instead of a similar kind , used in field fortification, one, is called a bonnet de prêtre, or priest's bonnet. the opening in the valve chamber of a In mechanics, a cast iron plate to cover pump; the opening is made so that ready access can be had when the valves need repairing; also a frame work of wire netting over the smoke ting over the smoke stack, or chimney, of of sparks; also the cover to the motor of a steam locomotive, to prevent the escape an automobile.
In navigation an additional piece of taken off in bad weather. to a schooner's foresail, by lacings, and canvas attached to the foot of a jib, or taken off in bad weather.
BONNEVAL ALEXANDRE, COUNT, a singular ad- (bôn-väl'), CLAUDE French family. In the war of the Span- venturer, born in 1675 of an illustrious ish Succession he obtained a regiment, and distinguished himself by his valor as well as by his excesses . On his return to France he was obliged to fly in consequence of some expressions against the Minister and Madame de Maintenon. Received into the service of Prince Eugene he now fought against his native country, and was raised , in 1716, to the rank .
BONNEVILLE of Lieutenant Field Marshal in the Austrian service, and distinguished himself against the Turks at Peterwardein. But his reckless and impatient spirit brought him into conflict with his superiors, and he took refuge in Constantinople. He was converted to Mohammedanism, named Achmet, was made a pasha of three tails, and, as general of a division of the army, considerable some achieved successes against Russians and Austrians. He died in 1747.