Show now kind of corcel thi in A new kind of porcelain made from froin asbestos has been brou brought 1 before the academic des sciences Pi rif by M garros lie ile grinds the asbe asbestos Aos to a fino fine powder and frees it tcora oxide ol of iron by sulphuric or hydrochloric acid then maltes makes it into a paste molds it dries it slowly and finally bakes it for seventeen or eighteen at a temperature pera ture of 1 laoj degrees C it is vely translucent and has been used su cebo fully as a niter filter and sterilizer |