The physical history of the Permian and Triassic rocks of Great Britain has been told by Professor Ramsay, who has pointed out that the beds were deposited in great inland lakes, for the most part salt. Without entering into the consideration of this subject, there seems to be much that requires to be unravelled in regard to the structure of the beds individually, and much that has yet to be explained in regard to the relations and grouping of the rocks.

The Valley of the Thames, with its numerous tributaries, like nearly all our English river-courses, contains more or less extensive deposits of Brick-earth and gravel, which were accumulated at a period long antecedent to that when the streams had cut their higher channels down to the depth at which they at present flow.

In the late Dr. Falconer's Palaeontological Memoirs so ably edited by Dr. Charles Murchison, F.R.S., a masterly and critical examination is given of the European Pliocene and Post-Pliocene species of the genus Rhinoceros, from which we venture to extract the subjoined introductory remarks.

In the Geological Magazine (Vol IV. p. 496) I have given some notes on West Indian Geology, with descriptions of a few new species of fossils. The notes were intended, in part, as supplementary to the papers published in the Journal of the Geological Society, and in the Geological Magazine, on the Geology and Palaeontology of the West Indies, and in part to exhibit an improved classification of the Caribean upper and middle Tertiaries.