IX. An account of an extraordinary case of a child.

luxuriant imaginary fyftems, which rather force than elucidate, and very little agree with the laws of na­ ture. Who hitherto has ever rightly explained the origin of mountains ? We perhaps know fome par­ ticular caufes, but how can we draw from them ge­ neral conclufions ? The bones of animals, which are found in the interior Mures of the mountain, demonMate it to be formed by a ruinous caufe. This fuffices not to explain, but only to illuftrate, the fubjeCt. In the annexed Plate I. A is the mountain Taberg. B, B, B, the heaps of broken ore. C, C, C, the fand brought forth from the fiffures. Z), Z), the neighbouring ftony rock $ and , the miners houfes* I am,