SECTION II.. The Old Red System of England and Wales, As Given in the General

The Old Red System of England and Wales, as given in the general Section of Mr. Murchison, with the Silurian Rocks beneath and the carboniferous limestone above. i. The point in the geological scale at which vertebrated existences first appear. The three Old Red Sandstone formations of this section correspond in their characteristic fossils with those of Scotland, but the proportions in which they are developed are widely different. The tilestones seem a comparatively narrow stripe in the system in England; the answering formation in Scotland, e, f, g, h, is of such enormous thickness, that it has been held by very superior geologists to contain three distinct formations--e, the New Red Sandstone, f, a representative of the Coal Measures, and g, h, the Old Red Sandstone.