DURING the year 1920 two contributions on the subject of Irish Glacial Geology have appeared, differing greatly in scope and treatment. Mr. Wright's paper on “Minor Periodicity in Glacial Retreat” is frankly speculative, but his speculations are based upon an accurate and fairly exhaustive survey of the glacial evidences in the country about the head of Kenmare River, the deep ria lying between Bantry Bay, Dingle Bay, and the lake region of Killarney.

AT the request of Mr. H. Woods, F.R.S., I have examined a small series of Echinoids belonging to the Sedgwick Museum, Cambridge, collected by the late J. F. Walker from the sand-pits on Shenley Hill, near Leighton Buzzard. Mr. G. W. Lamplugh has sent me four additional specimens from the same locality. The matrix seems to be the same in all the examples except D, and agrees absolutely with a sample of the Limestone-lentides sent for comparison by Dr. F. L. Kitchin. The age of this Limestone is a subject of controversy (see Geol. Mag., January—March, 1920), and a critical analysis of its fauna seems the only means of deciding the issue. Unfortunately, most of the Echinoids are very indifferently preserved so that specific determination is often doubtful, and in some cases impossible.

THE features of the Glacial deposits and associated phenomena just discussed are in general so clear that most observers would arrive at the same conclusion regarding them, but there are some other features about which, either due to their controversial nature or the conflicting character of the evidence, there is not yet such general agreement. These are (a) the evidence for interglacial Periods in the Drift of these counties, (b) the raised beaches of East Durham, (c) the origin of the leafy clays, (d) the explanation of the distribution of fragments of certain rocks —Flint, Chalk, Magnesian Limestone—in the Superficial Deposits.

THE unique type-specimen of Hylonomus wildi, a small amphibian from the marine roof of the Mountain Four-feet Mine of the Lower Coal-measures at Trawden, near Colne, Lancashire, is now in the Manchester Museum, No. W 1222.

THE oil-springs of Jaba are situated at the foot of the steep lime stone hills 1½ or 2 miles distant from the village of Jaba and 7 miles from the railway station of Massan. On the topographical map (Sheet 38, p. 9, scale 1 inch = 1 mile) the two main oil-springs are marked. The north-western spring is called Chota Kutta by the natives, the south-eastern Burra Kutta, from the brooks where they are found.