"Boracic" Quotes from Famous Books
... for example, lithium), iron, boron, and hydrogen. As Ruskin says of it in his The Ethics of the Dust, when Mary asks "and what is it made of?" "A little of everything; there's always flint (silica) and clay (alumina) and magnesia in it and the black is iron, according to its fancy; and there's boracic acid, if you know what that is: and if you don't, I cannot tell you to-day and it doesn't signify; and there's potash and soda; and on the whole, the chemistry of it is more like a mediaeval doctor's prescription, than the making of a respectable mineral." The various tourmalines ... — A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public • Frank Bertram Wade |