A metamorphosed basic tuff and a felsite and a felsite intrusion are described. Presence of laminar structure in the matrix of the tuff and of veinlets of tuff penetrating and acid xenolith enclosed in the tuff indicates that the fragmental assemblage moved in a manner similar in final effect to fluid injection. A felsite-tuff which grades into the felsite is thought to be the remnant of the emplaced material subsequently metasomatized in situ to produce the felsite.

At South Hill, 1/2 mile south-east of St. Helier, two hornblende-mica-lamprophyre dykes cut the Fort Regent granophyre. They are themselves displaced by two gently dipping shear zones and a dolerite dyke belonging to the main Jersey dyke swarm cuts the granophyre, lamprophyres, and shears, Petrographically the lamprophyres are of the spessartite-kersantite type, but the presence of euhedral brown amphibole invites comparison with the camptonites. The genesis of the lamprophyres is discussed and a significant role is assigned to volatile constituents.

Progressive fitting of linear, quadratic and cubic partial trend best-fit surfaces to median grain size (X1, in mm.) and percentage of silt and clay sizes (X3) of soil samples taken from fifty locations on the Lower Greensand outcrop between Ely and Leighton Buzzard in east-central England permit up to about 40 per cent of the total sums of squares to be “explained”. The successively higher levels of mathematical generalization of regional soil size distribution indicate a decrease in soil grain size towards the south-east, a disparity between the alignment of the soil facies and the strike of the present outcrop, and the existence of zone of abnormally coarse soil facies just to the west of the line of the rivel Ivel. These three features of the regional distribution of soil sizes are interesting in that they correlate with observations which have been made on the regional distribution of bedrock size facies. Finally, a suggested correlation is made between the local zones of small median grain size and abnormally high proportions of silt andclay soil sizes—isolated as “deviations or residuals” from the fitted regional surfaces—and localities where small admixtures of glacial drift (evidenced by the presence of flints) have been observed.

A section through the Llandovery of the Frankenwald, in North-East Bavaria, has been described and the fauna of each of the graptolite zones contained therein has been presented. The succession of the graptolites corresponds to that known from Great Britain.

Some, but not all, specimens of Uncites have a pair of pouches formed by invagination of the shell margin. These are interpreted as brood pouches. They are compared with the brood pouches of Lacazella and other living brachiopods, and of the living bivalves Thecalia and Milneria.

Examination of material from this locality kept in the Sedgwick Museum since 1881 has revealed much more about its molluscan fauna, especially about the frequency of species. It seems to have been a deposit of the main river Cam in the middle of the Last Interglacial.

The lithological succession in the upper part of the Speeton Clay of the type section is given and the classification of the clays as a whole is reviewed. Brief notes are included upon the mode of deposition of the sediments and the palaeogeography of the area in Lower Cretaceous times.

The technique of vacuum shadowing small objects and the advantages of this method in light photography are detailed. The ultra-thin metal-carbon films thus prepared show greater contrast and resoultion than acetate peel replicas.

The “Beach-Beds” at Castleton, Derbyshire, are shown to be detrital deposits containing numerous water-worn and broken brachiopod shell fragments set in a matrix of finely comminuted shell and crinoid debris. They occur at the junction of the fore-reef and basin facies of the Carboniferous Limestone. Previous interpretations of the “Beach-Beds” as cliff-foot screes or as beds lying above an unconformity are not supported, and it would appear that they are composed largely of debris transported down a submarine channel (the approximate position of which is now the dry valley of the Winnats) rather than in shallow water on a sea-beach, being deposited at the foot of the channel contemporaneously with the adjacent fore-reef beds.