We are now in a position to indicate the succession of geological events in Egypt, and to compare them with those of neigh-bouring regions.

Since the appearance of my paper in the Geological Magazine, 1883, Decade II. Vol. X. pp. 534–542, the following species have been added to the list of British Carboniferous Limestone Trilobites, and will form a part of the forthcoming volume of the Palæontographical Society for the present year.

Having completed the description of the mammals and birds at present known from the Siwaliks of India and Burma (a list of the former being given in the September number of this Magazine, pp. 426–8), I have thought it well to publish a short account of the distribution in time and space of the Siwalik genera of these two classes, as a prelude to a more extended notice, which I hope to give in the “Palæontologia Indica” when I have completed the description of the whole vertebrate fauna of the Siwaliks.

I have been desired by the Council of the British Association to contribute some account of the later Fossil Floras of Europe and America, with a view to determining, more precisely if possible, their relative ages.

The following is an abstract of Dr. Hunt's paper. According to the author there is found among the pre-Cambrian strata of North America an invariable succession of crystalline stratified rocks, which have been by him divided into several great groups, the constituents of which become progressively less massive and less crystalline until we reach the sediments of Palæsozoic time; of which the Cambrian is regarded as the basal member. Since all of these pre-Cambrian rocks, with the exception, perhaps, of the lowest or fundamental gneiss, present evidences, direct or indirect, of the existence of organic life at the time of their deposition, it seems proper to include them under the general title of Eozoic, proposed by Sir J. W. Dawson. That of Archæsan, employed by some geologists to designate these pre-Cambrian rocks, appears too indefinite in its signification, and, moreover, is not in accordance with the nomenclature generally adopted for the great divisions succeeding. These Eozoic rocks include both the Primitive and the Transition divisions of Werner.