We shall briefly pass over this period. At Bordeaux, Piedmont, and in Lisbon, this formation is seen; as well as in various other parts of the Continent of Europe. The supposition of Geology is, that during this period “whole regions of volcanoes burst forth, whose lofty but now tranquil cones can be seen in Catalonia, in Spain, in France, Switzerland, Asia, and in America. The Alps, the Carpathian Mountains, and other lofty ranges were at this period partially upheaved. The researches of Sir Robert Murchison have established this fact, by his finding deep beds of limestone, characteristic of the Tertiary period, on the summit of one of the loftiest of the Alps, fully ten thousand feet above the level of the sea.” No. III.—_The Pliocene Period._ This term has already been explained. We shall only detain the reader by a few words respecting the organic remains that characterize this formation. In England it is confined to the eastern part of the county of Suffolk, where it is called “Crag.” This is a mere provincial name, given particularly to those masses of shelly sand which are used to fertilize lands deficient in calcareous matter. The geological name given to this strata is the “Red or Coralline Crag;” and it is so called on account of the deep ferruginous colour its fossils have through extensive oxidization of iron. We give drawings of the fossils of the Red Crag, obtained from the neighbourhood of Ipswich. [Illustration: FOSSILS FROM THE RED CRAG, NEAR IPSWICH. 1. VENERICARDIA SENILIS. 2. TURRITELLA. 3. PATELLA ÆQUALIS. 4. CYPREA. 5. PALUDINA LENTA. 6. PECTUNCULUS VARIABILIS. 7. MUREX. 8. FUSUS CONTRARIUS. 9. BUCCINUM ELONGATA. 10. VENERICARDIA SCALARIS. 11. VOLUTA LAMBERTI. 12. FUSUS ASPER. 13. PECTUNCULUS PILOSUS. ]