Note 52 — THE TESTIMONY OF THE ROCKS. (continued 8)

"Though the coal of Sabero is apparently included in Devonian rocks," says Sir Roderick Murchison, "M. Casiano de Prado thinks that this appearance may be do to inverted folds of the strata." On the other hand, M. Alcide D'Orbigny regards it us decidedly Old Red; and certainly its Sphenopteris and Lepidodendron bent much more the aspect of Devonian than of Carboniferous plants.