trade and manufactures, is a preparation given to divers sorts of bodies by making them pass over the fire, chiefly in water, though sometimes in other liquors. In this sense we speak of the boiling of salt, boiling of sugar, copperas, &c.

**Boiling of Silk with Soap** is the first preparation in order to dyeing it. Thread is also boiled in a strong lixivium of ashes to prepare it for dyeing.

the culinary art, is a method of dressing meats by coking in hot water, intended to soften them, and dispose them for easier digestion. The effects of boiling are different according to the kinds and qualities of the water. Pulse boiled in sea-water grow harder; mutton boiled in the same becomes softer and tenderer than in fresh water, but tastes saltish and bitter.

**Boiling to Death** (caldaritis decouere), in the middle age; a kind of punishment inflicted on thieves, false coiners, and some other criminals.

Boiling is also a method of trying or essaying the goodness or falseness of a colour or dye. The stuff is to be boiled in water with certain drugs, different according to the kind or quality of the colour, to try whether or no it will discharge, and give a tincture to the water. With this view crimson silks are boiled with alum, and scarlets with soap, in quantity equal to the weight of the silk.

**Boiling-Wells**, in Natural History. See **Burning-Springs**, and **Iceland**.

**Boinitz**, a town of Upper Hungary, in the county of Zell, remarkable for its baths and the quantity of saffron that grows about it. E. Long. 19. 10. N. Lat. 48. 42.

**Boiobi**, in Zoology, the name of a species of serpent found in America, and called by the Portuguese cobra de verd. It is about an ell in length, of the thickness of a man's thumb, and is all over of a very beautiful and shining green. Its mouth is very large, and its tongue black. It loves to be about houses, and never injures any creature unless provoked or hurt; but it will then bite, and its poison is very fatal. The natives take as a remedy against its poison, the root can apia bruised and mixed with water. See **Cobra Apia**.

**Boiorum Deserta**, in Ancient Geography, a district of Pannonia, so called from the excision of the Boii by the Getæ. Now the Weinerwald, of Lower Austria, towards Stiria, to the east of Mount Cetius, or the Hahlenberg, and south of Vindobona or Vienna.

**Boiquira**, the American name for the rattlesnake.

**Bois-le-Duc**, called by the Dutch Hertogen-bosch, a large, strong, and handsome town of the Netherlands, in Dutch Brabant, seated between the rivers Dommel and Aa, among morasses, in E. Long. 6. 16. N. Lat. 51. 45.

**Bois de Soignies**, the forest of Soignies in the Austrian Netherlands and province of Brabant, about three miles south-east of Brussels.

**Bois de Coissi**, the name given to a South American tree growing about Surinam, held in the highest estimation by the Indians in that part of the world, and now recommended to the physicians of Europe by Dr Fernin in a treatise lately published at Amsterdam. The root is esteemed an excellent stomachic, restoring the appetite and assisting digestion; but it is chiefly celebrated as an infallible remedy against even the most inveterate intermittents. It is said also to be used with great safety and advantage in every species of remittent and continued fever, with patients of all ages, sexes, and conditions, even during pregnancy, and in the puerperal state. Before employing it, however, it is absolutely necessary to administer either a purgative or emetic. The best method of exhibiting it is in decoction: half an ounce of the bark of the root must be boiled in a close vessel with six pints of water till onehalf half be consumed; the decoction is then strained off, and a cupful taken every two hours till the fever is entirely extinguished. Six or seven days after a cure is thus performed, it is generally necessary to repeat the purgative.