I am indebted to Professor Orville A. Derby for the opportunity of studying some fish-remains from the Cretaceous of North-East Brazil, which were examined by the late Professor Cope and partially described by him, without illustrations, in 1886. I had the privilege of seeing some of these fossils at Philadelphia in 1890, and made a few notes which were incorporated in the British Museum Catalogue of Fossil Fishes. I have now undertaken a renewed and more detailed study of the collection, which suggests the desirability of publishing the following supplementary observations.

With few exceptions, surface dislocations within the earth's crust or ‘earthquake-faults,’ have been described in connection with all earthquakes of large proportions. The Charleston earthquake of August 31st, 1886, stands out in some contrast with most others in this particular, and it is further in contrast with some other earthquakes for the reason that the phenomena recorded in connection with it have not as yet been brought into any relation with the structural geology of the district. A partial explanation of this may perhaps be found in the fact that the area most disturbed—the so-called ‘epicentral tract’—is entirely included within the coastal plain of the South-Eastern United States. Upon this plain the basement of rock is covered to very considerable depths by unconsolidated material, and it would perhaps be too much to expect that displacements upon fracture planes in the rock would be revealed in full measure at the surface.

During the last few months the preparation of a descriptive catalogue of the magnificent collection of reptilian remains obtained by Mr. A. N. Leeds in the Oxford Clay of Peterborough, has rendered it necessary to examine in some detail the fine series of more or less complete skeletons of Ophlhalmosurus preserved in the British Museum. In the course of this examination a certain number of new facts have come to light, and since it will be some time before the detailed description can appear it seems desirable to give a brief account of some of the more interesting points.

In the Slade Beds of Upper Slade there occur small flattened leaf-like bodies generally fused together in a linear series of 2–4, but sometimes singly. These fossils have a somewhat puzzling aspect, but they may be referred without any doubt to the Bryozoa, though to a new and undescribed genus and species.

A glance at a geological map shows Blackheath and Greenwich Park at the western end of the Lower Tertiary escarpment which is conspicuous on the southern side of the Thames as far eastward as Erith.

When the members of the “Jorullo Excursion” of the Tenth International Geological Congress were in the city of Morelia, in Mexico, they visited the College of St. Nicholas (founded in 1540), in the buildings of which is the Museo Michoacano. One of the most interesting objects in the Museum in question is a piece of basaltic lava containing remains of maize, which has been described by Dr. M. M. Solórzano, the Curator of the Museum, in an article entitled “Breve noticia acerea de algunos productos volc´nicos de las immediaciones de esta ciudad” in the “Boletin de la Sociedad Michoacana de Geographia y Estadistica,” Tomo ii, Núm. 8, Morelia, Julio 15 de 1906, pp. 59, 60.

In a paper wliich I read before the Edinburgh Geological Society on 26th January, 1880, and which appears in the Transactions, vol. iii, pp. 304–325, a general stratigraphical account is given of the extensive scries of interbedded volcanic rocks of the Bo'ness Coalfield in Linlithgowshire.

The conspicuous relations of the brachiopod fauna of these heds to that of the Lower Devonian in South America have frequently been pointed out, and may be summarised as follows:—

(1) In the Falkland Islands the following South African species are found (12):—