The genus Acanthoteuthis was founded by E. Wagner1 and G. Münster upon small booklets, sometimes isolated, sometimes associated with more or less complete remains of the animal, which are found in the Lithographic Stone of Bavaria. Münster characterized three species chiefly upon the form of these hooklets, viz, A. speciosa, A. Férussacii, and A. Lichtensteinii, and noticed the existence of a fourth. Subsequently Munster referred to this genus also a number of forms based principally upon the shape of the body and upon the form of the internal shell, but most of these were afterwards separated by A. Wagner as a new genus (Plesioleuthis). The genus Acanthoteuthis is therefore restricted to such forms as Münster described chiefly upon the form of the books.

Until a few years ago it was believed that the Territory of Patagonia was of an extremely simple and uniform geological structure; it was supposed that from the Colorado to the Straits of Magellan, and from the Atlantic to the base of the foot-hills of the Andes, it was constituted exclusively by the marine Patagonian Formation, on the age of which the most varied opinions were expressed, although all agreed in referring it to the Tertiary series. This uniformity was interrupted only at intervals by great sheets of basalt which appeared sometimes at the surface, sometimes below the boulder-deposit.

The general conclusions of the brothers Ameghino in reference to the geology of Patagonia, as detailed in the foregoing valuable synopsis of results, may be still more briefly stated in the following manner

(1) The oldest sedimentary rocks in which fossils have been found are red sandstones, containing mineralized wood, Dinosaurian bones, and other smaller reptilian remains. “Upper Cretaceous.”

(2) The terrestrial or fresh-water Pyrotherium Beds succeed these and may be partly intercalated with them. They contain a singular mammalian fauna, notably primitive Ungulata. “Upper Cretaceous.”

The problem I have tried to solve in this paper is, whether the Mino-Owari, or great Japanese, earthquake of 1891 had any effect on the seismic activity of the surrounding regions. The effect we might anticipate would be either an increase or decreasein the frequency of shocks in those regions soon after the occurrenceof the principal earthquake—a decrease if the stress were thereby diminished over the whole district, an increase if the stress were relieved in the central area and partially transferred to those adjoining it.

A Few years ago, in one of three or four papers treating of the “high-level shelly clays” of Scotland, I referred at some length to the interesting section at Clava, near Inverness, first described by Mr. Jas. Fraser, C.E., and inquired—Is it part of an old sea-shore or bottom, laid down by the sea where we now find it, and therefore proving a submergence of at least 500 feet ?

I submitted a number of facts and considerations which, I thought, tended to show that this instance at Clava cannot be received as a satisfactory proof of submergence.

A year ago, by the decision of the Council of the British Association, there was sent to the Museum of Practical Geology a large collection of photographs mainly taken with a view of illustrating, in the most permanent and unbiassed way at present possible, the features and phenomena of geological interest in the United Kingdom. The project of forming such a collectionoriginated with Mr. O. W. Jeffs in 1888, when he read a paperon the subject at the British Association at Bath, in which hepointed out the utility of such a collection and the necessity for forming it. When a committee was appointed in the followingyear he undertook the management of the work, and he has carriedit ou for seven years with indefatigable industry and scrupulou scare, only relinquishing it when the size of the collection beganto exceed the capabilities of private control, and when his own lackof leisure no longer permitted him to devote the requisite time andattention to its custody.