Beds of Passage between the Lias and Trias, Rhætic Beds. — Triassic
Mammifer. — Triple Division of the Trias. — Keuper, or Upper Trias of
England. — Reptiles of the Upper Trias. — Foot-prints in the Bunter
formation in England. — Dolomitic Conglomerate of Bristol. — Origin of
Red Sandstone and Rock-salt. — Precipitation of Salt from inland Lakes
and Lagoons. — Trias of Germany. — Keuper. — St. Cassian and Hallstadt
Beds. — Peculiarity of their Fauna. — Muschelkalk and its Fossils. —
Trias of the United States. — Fossil Foot-prints of Birds and Reptiles
in the Valley of the Connecticut. — Triassic Mammifer of North
Carolina. — Triassic Coal-field of Richmond, Virginia. — Low Grade of
early Mammals favourable to the Theory of Progressive Development.