[Boulder], a large mass or block of rock found in localities often far removed from the place of its formation, and transported thither on the ice of the Glacial Age.

[Boulevard], the rampart of a fortified city converted into a promenade flanked by rows of trees and a feature of Paris in particular, though the boulevard is not always on the line of a rampart.

[Boulogne, Bois de], a promenade between Paris and St. Cloud, much frequented by people of fashion, and a favourite place of recreation; it rivals that of the Champs Elysées.

[Boulogne-sur-Mer] (46), a fortified seaport in France, on the English Channel, in the dep. of Pas-de-Calais, 27 m. SW. of Calais, one of the principal ports for debarkation from England; where Napoleon collected in 1803 a flotilla to invade England; is connected by steamer with Folkestone, and a favourite watering-place; the chief station of the North Sea fisheries; is the centre of an important coasting trade, and likely to become a naval station.

[Boulogne-sur-Seine] (32), a town on the right bank of the Seine, 5 m. SW. of Paris, from which it is separated by the Bois-de-Boulogne.

[Boulton, Matthew], an eminent engineer, born at Birmingham; entered into partnership with James Watt, and established with him a manufactory of steam-engines at Soho, on a barren heath near his native place; contributed to the improvement of the coinage (1728-1809).

["Bounty," Mutiny of the], a mutiny which took place on the ship Bounty, on the 28th April 1789, bound from Otaheite to the West Indies, on the part of 25 of the crew, who returned to Otaheite after setting the captain (Bligh) adrift with others in an open boat. Bligh reached England after a time, reported the crime, to the seizure at length of certain of the offenders and the execution of others. Those who escaped founded a colony on Pitcairn Island.

[Bourbaki, Charles Denis Soter], a French general, born at Pau, served in the Crimean War and in Italy, suffered disastrously in the Franco-German War, and attempted suicide; served for a time under Gambetta, afterwards retired; b. 1816.

[Bourbon], a family of French origin, hailing from Bourbonnais, members of which occupied for generations the thrones of France, Naples, and Spain, and who severally ruled their territories under a more or less overweening sense of their rights as born to reign. Two branches, both of which trace back to Henry IV., held sway in France, one beginning with Louis XIV., eldest son of Louis XIII., and the other, called the Orleans, with Philip of Orleans, second son of Louis XIII., the former ending with Charles X. and his family, and the latter ending with Louis Philippe and his line. The branches of the family ruling in Spain and Naples began with Philip VI., grandson of Louis XIV., the former branch still (1899) in power, the latter ending with Francis II. in 1860.

[Bourbon, Charles de], styled the Constable de Bourbon, acquired immense wealth by the death of an elder brother and by his marriage, and lived in royal state; was for his daring in the field named Constable of France by Francis I.; offended at some, perhaps imaginary, injustice Francis did him, he clandestinely entered the service of the Emperor Charles V., defeated the French at Pavia, and took Francis captive; parted from Charles, laid siege to Rome, and fell in the assault, mortally wounded, it is said, by Benvenuto Cellini (1489-1527).