Things Worth Knowing

Kid gloyea are not kid, but are made of lambskifi or sheepskin. Arabic figures -Weïe not invented by the Arabs, but by the Indiana. Tube roso is no rose, but the tuberoos palianth (palianthes tuberosa). Black iëad doee not contain a singlo particle of lead, bnt ís Coinposed chicfly of carbon. Turkish baths aro not of Turkish orlgin ; nor are they baths at all. They are hot air rooms. PrüssJafi blue does not come from Prussia, but is the precipítate of the salt of protoxide of iron with pruwiiate of potassa. Brazilian grass does not come from Brar-il, or even grow in Brazil ; nor is it grass at all. It consiste of strips of palra-leaf, and is chiefly imported from Cuba. Whalebone is no bone at all ; nor doe it possess any proporties of bone. It is a substance attached to the lower jaw of the TVhale, and seems to strain the water, which the creature takes up in large mouthfulfl. Soaling-wax is not wax at all ; nor does it contain a single particle of wax. It is composed of shellac, Venice tnrpentine and cinnabal'. Cinnabar gires it the deep red color, and turpentiüe rondevs the shellac soft and lesa brittle. Burgundy pitch is not pitoh ; nor is it manufacturecl or exported from Burgunily. The best is a resinous substance, prepared from common frankincense, and brought from Hamburg ; but. by far the largest quantity is a mixture of resin and palin-oil. Copperas contains no copper, but consiste of sulphste of iron. Cobalt, sold as a fly poison, contains no cobalt ; but consista of impnre metellic arsenic. Bed precipitóte or red oxide of mercury is not made by precipitation, but by heating the nitrat of mercury ; when precipitated it has á yollowish color.