BOISGOBEY, FORTUNE DU (1824-1891), French writer of fiction, whose real surname was Castille, was born at Granville (Manche) on the 11th of September 1824. He served in the army pay department in Algeria from 1844 to 1848, and extended his travels to the East. He made his literary debut in the _Petit journal_ with a story entitled _Deux comediens_ (1868). With _Le Forcat colonel_ (1872) he became one of the most popular feuilleton writers. His police stories, though not so convincing as those of Emile Gaboriau, with whom his name is generally associated, had a great circulation, and many of them have been translated into English. Among his stories may be mentioned: _Les Mysteres du nouveau Paris_ (1876), _Le Demi-Monde sous la Terreur_ (1877), _Les Nuits de Constantinople_ (1882), _Le Cri du sang_ (1885), _La Main froide_ (1889). Boisgobey died on the 26th of February 1891. BOISGUILBERT, PIERRE LE PESANT, SIEUR DE (1676-1714), French economist, was born at Rouen of an ancient noble family of Normandy, allied to that of Corneille. He received his classical education in Rouen, entered the magistracy and became judge at Montivilliers, near Havre. In 1690 he became president of the _bailliage_ of Rouen, a post which he retained almost until his death, leaving it to his son. In these two situations he made a close study of local economic conditions, personally supervising the cultivation of his lands, and entering into relations with the principal merchants of Rouen. He was thus led to consider the misery of the people under the burden of taxation. In 1695 he published his principal work, _Le Detail de la France; la cause de la diminution de ses biens, et la facilite du remede_.... In it he drew a picture of the general ruin of all classes of Frenchmen, caused by the bad economic regime. In opposition to Colbert's views he held that the wealth of a country consists, not in the abundance of money which it possesses but in what it produces and exchanges. The remedy for the evils of the time was not so much the reduction as the equalization of the imposts, which would allow the poor to consume more, raise the production and add to the general wealth. He demanded the reform of the _taille_, the suppression of internal customs duties and greater freedom of trade. In his _Factum de la France_, published in 1705 or 1706, he gave a more concise _resume_ of his ideas. But his proposal to substitute for all aides and customs duties a single capitation tax of a tenth of the revenue of all property was naturally opposed by the farmers of taxes and found little support. Indeed his work, written in a diffuse and inelegant style, passed almost unnoticed. Saint Simon relates that he once asked a hearing of the comte de Pontchartrain, saying that he would at first believe him mad, then become interested, and then see he was right. Pontchartrain bluntly told him that he did think him mad, and turned his back on him.