In his “Palæozoic Fossils” (1861–65), Mr. Billings described, without figures, a fossil from the Black River Limestone, to which he gave the name of Stromatopora compacta. The description given was as follows:—“This species forms small subglobular masses, from one to two inches in diameter. The concentric lamellæ are thin and closely packed together, there being in some specimens from six to twelve layers in the space of two lines” (op. cit. p. 55).

The following notes and lists of species are based upon material collected by one of us during several visits to the neighbourhood of Grange-over-Sands, Lancashire. They are here recorded because they add a little to what is known of the distribution of Bivalved Entomostraca in the North-West of the English area during the early half of the Carboniferous Period.

The arrangement of a considerable collection of Cretaceous corals in my own cabinet has been the means of identifying some species not hitherto recorded as English, though well known elsewhere, and at the same time of subjecting some others to a more searching examination than they had before undergone. The result has been the addition of the following genera to the English list, viz. Ceratotrochus, Pleurosmilia, Barysmilia, Rhizangia, and Leptophyllia.

In 1883 a scattered group of five boulders was met with in the workings of the Coleorton Colliery in the “Lount Nether” coal, at a depth from the surface of about 375 feet. They were all entirely enveloped in the coal, and occurred about 20 inches from the top of the seam. Four of them were found within a space of 20 yards of one another, but no two of them very near together, and the fifth occurred some 500 yards S.W. of the others. The coal-seam was of its normal thickness—namely, about 4½ feet. This is the seam marked “Lount 4” upon the Geol. Survey Sheet No. 46 of Horizontal Sections, and it is the lowest but one worked in the district.

[Note by the Translator.—M. Albert Gaudry, the well-known Professor of Palæontology at the Museum of Natural History of Paris, following up a report which he published last year of a visit to the British Museum (Natural History), Cromwell Road, has recently written an article in the "Revue Scientifique" on a series of visits just paid to the Museums of Germany and elsewhere.

This article is valuable, not only for the statement of the existence of a great scientific movement on the Continent, but for the summarised sketch it gives of the most interesting geological and palæontological collections in the principal museums of Europe, a knowledge of which is often desiderated by the student when travelling abroad.—Mark Stirrup.]

In the June Number of the Geological Magazine an abstract is given of a paper on Cone-in-cone, read by Mr. John Young before the Geological Society of Glasgow, in which he advances the theory that this peculiar structure is caused by the escape of gases.