In the interests of accuracy and practical convenience, a detailed account is given of several instances well known to the author where vague or badly chosen place-names have given rise to uncertainty or even definite errors, in the position of geological localities, including one recent description of an important deep boring in N.E. Yorkshire. Attention is also drawn to an increasing looseness in the definition of the ancient local name of Cleveland. Trouble has also been caused by the recent invention of a new place-name, Ravenscar, which is synonymous with the ancient name, Peak (not The Peak, as often written by geologists). When an author is not himself thoroughly conversant with the place-names of his district it is recommended that some local authority, not necessarily a geologist, should be consulted.

Two questions are discussed: what is the nature of the boundary between the Devonian rocks of the Meneage and of the Start area on the one hand, and the mica- and green schists to the south of them on the other; and are the latter also Devonian or older than Devonian ? The author gives his views on the boundary in both cases, and concludes that the mica- and green schists in both are of Devonian age.

Dr. Trotter's recent theory of devolatilization of coal seams is criticized on structural grounds and the “square law” suggested is shown to be no improvement on many other expressions of varied types. The data are best represented both for South Wales and the Kent Coalfield by Hilt's law. The influence of depth of burial on coal vegetation is discussed; loss of volatile matter is probably promoted by temperatures, but is almost certainly retarded by high pressures. The Hilt rate is controlled by the chemical-physical factors and may be influenced also by varying rates of sedimentation during the accumulation of the Coal Measures.

The pediment is a widespread and fundamental landform adapted to and moulded by sheet-flow of surface water. The usually abrupt transition from hillslopes to pediments corresponds to a change in surface water flow from linear- to sheet-flow. A cut-rock surface is an essential feature, and where this is buried beneath a detrital mantle some climatic change is to be suspected.

This preliminary note records two discoveries in the Ross of Mull. Kyanite is considerably more widespread in the Moine rocks than previous investigations have indicated. Where the kyanite-gneiss enters the thermal aureole of the granite, large andalusite paramorphs are formed from kyanite.

An account is here given of the recent discovery at Oxford of a hitherto unrecorded MS. in William Smith's handwriting, giving the list of Strata as known to him in 1797 and differing in some respects from the famous list dictated by him two years later at Bath to the Rev. B. Richardson and the Rev. Joseph Townsend, a copy of which is preserved in the Geological Society's collection. The list is reproduced here in its original form and spelling, together with a number of annotations.

The author emphasizes the distinction of the marine Paleocene fauna of India from that of Europe, and its resemblance to that of the West Indies (Antilles). He suggests a marine connection between West and East Indies across North Africa, south of the Mediterranean region, in basal Tertiary times, before the Americas had drifted far from Europe and Africa.

Four new species of Calymenidae distinctive of horizons of strati-graphical interest are described. Observations of two pairs of anterior pits in the axial furrows of Platycalymene éire sp. nov. and P. duplicata (Murchison), not corresponding with the first lateral furrows of the glabella, indicate a trisegmental origin of the frontal lobe. A possible correspondence of the trilobite hypostome with chelicerae of Arachnids is propounded.

Seventy specimens of trilobites are listed and reference is made to the works in which they were figured and described. Many of them were originally hi private collections which have been deposited in the University Museum since the time of the publication. The specimens have been allotted numbers under a scheme of registration which it is intended should eventually incorporate the whole of the research and reference palaeontological collections under the care of the Professor of Geology at Oxford.

Primary divisions of the lower tetrapods are believed to be expressed in the structure of the vertebrae, which represent an earlier formation embryologically than the skull. On this and other grounds the Urodeles are referred to an isolated group, the Urodelomorpha. Already in the embolomerous forms of the Carboniferous is seen the cleavage into Loxembolomeri (Batrachomorpha) and Anthrembolomeri; from the Anthrembolomeri again are derived the Diadectomorphs (Reptiliomorpha) and the Captorhinomorphs, the latter the ancestors of the Theromorphs (including Mammalia), the Archosauromorphs and the Neosauromorphs. From Triassic times onwards active evolution and the production of new types becomes progressively restricted, with the principal exception of the several Theromorph lines by which it is transmitted to the Mammalia and finally Man.

A collection of erratics from the Boulder Clay and associated remanie drift of the Nene Valley includes distinctive sedimentary, igneous, pyroclastic, and metamorphic rocks. Localities are suggested from which these may have originated and it is concluded that the Upper Chalky Boulder Clay was brought by ice moving from a direction west of north.

The granite of the Dicq Rock is traversed by several veins of fine grained aplogranite. These in turn are cut by a large dolerite dyke, which has been intruded into a brecciated fault zone within the granite. Three large blocks of granite occur within the dolerite; these originally formed the southern boundary of the fault. The petrography of these rocks, and the influence of the micro-breccia upon the textures found in the marginal and central part of the dolerite, are considered in detail.

It is suggested (1) that the term “Estuarine Series”, as applied to the Middle Jurassic rocks of Yorkshire, should be abandoned and that “Deltaic Series” should be substituted; (2) that the boundary between the lower and middle divisions of this series should be revised and that the persistent Eller Beck Bed should be substituted for that boundary in place of the wedging Millepore Series of the Scarborough district and its inland equivalent, the Whitwell Oolite.

The transition of Delocrinus to Paradelocrinus is demonstrated by a group of specimens collected by Mr. Allen Graffham from the lola limestone of Kansas. Description of Paradelocrinus iolaensis sp. nov. is given, and the geological range of the Permian genus Stuartwellercrinus is taken into the Pennsylvanian (Upper Carboniferous) with the presentation of Stuartwellercrinus argentinei sp. nov. from the Wyandotte limestone of Kansas.