88 Revieics — Geology of Alresford. 



requirements of Nottingham as an educational centre"; but would 

 not most of the students who take up geology as a serious pursuit 

 probably do so with the view of gaining their livelihood as mining 

 engineers, geological surveyors, or teachers, and require some knowledge 

 of the applications of geology? As pointed out, they will have the 

 opportunity of purchasing the four memoirs already mentioned, and 

 in the present work they may gather information about the structure 

 of the coal-field, the sequence of the coals, and the organic remains 

 which mark horizons. References are also given to the moulding- 

 sands in the Bunter and to the gypsum in the Keuper, as well as 

 to brick-clays. 



As an exposition of the main geological features, of the palaeontology 

 and physical history of the formations, the work is excellent; and the 

 illustrations of the Trent Valley at Nottingham during the flood of 

 1875, of the Magnesian Limestone Series near Kimberley, and of the 

 Crags of Nottingham Castle, are particularly good. 



The formations included in the area extend from the Millstone Grit 

 to the Lower Lias, with Glacial Drift, River Gravels, and Alluvium. 

 Attention is finally directed to subjects on which further information 

 is needed, and to these the student, bent on research, may profitably 

 devote his spare time. It is noteworthy that no palaeolithic implements 

 have been obtained in the district. 



IV. — The Geology of the Country around Aluesford. By H. J. 

 Osborne White, F.G.S. London: printed for II. M. Stationery 

 Office, and sold by E. Stanford, Long Acre, and T. Fisher Unwin, 

 Adelphi Terrace. 8vo ; pp. iv, 102, with 15 text-illustrations. 

 1910. Price 2s. 



WE welcome another memoir by Mr. Osborne White, the previous 

 one on the Geology of Basingstoke having been noticed in the 

 Geological Magazine for February, 1910. As before, the author, 

 while adding considerably to our knowledge, has dealt carefully and 

 generously in the text with the work of other observers, and of these 

 Gilbert White will ever be most intimately associated with the district. 



The area which is included in Sheet 300 of the colour-printed 

 Geological Survey map lies directly south of that of Basingstoke, and 

 Alresford is situated a little to the west of the central portion. 



The formations that appear at the surface extend from the Weald 

 Clay to the Reading Beds, and comprise sundry superficial deposits. 

 There are no deep borings to indicate how far westwards the Lower 

 Cretaceous strata may extend. The Weald Clay appears in a portion 

 of Sussex, in the south-eastern corner of the area ; thence westwards, 

 as shown in the longitudinal section on the map, we cross the bold 

 hills of Lower Greensand, the Gault vale, the gentle scarp of Upper 

 Green sand, and the Chalk escarpment. While the name Selbornian 

 was appropriately taken as a chronological division for the Upper 

 Greensand and Gault, the map shows the importance of separating the 

 two formations. 



The author gives detailed accounts of all the subdivisions, of their 

 fossils and economic products. In the Lower Greensand the Bargate 

 Beds occur in the upper part of the Hythe Beds, below the Sandgate 



