Reviews— Water Supply, Hampshire and Oxfordshire. 369 
occupy the main portion of the work. Sundry mineral waters are 
noted, mostly chalybeate, those of Shanklin and Chale being the best 
known. It is stated that Bembridge is supplied from a shallow well 
in the Bembridge Limestone, known as ‘‘Centurion’s or St. Arian’s 
Well’”’. The former name has been regarded by some as a misnomer, 
recorded by the Ordnance Survey instead of St. Urian’s (here given 
as St. Arian’s). A bibliography contains lists of publications of the 
Geological Survey, the Local Government Board, and of other works 
that bear on the water supply of Hampshire, Particulars relating to 
the rainfall, accompanied by a map, are contributed by Dr. Mill. 
2. Toe Water Suppry oF OXxFoRDSHIRE, WITH ReEcorDs oF SINKINGS 
anD Boritnes. By R. H. Tropeman, M.A., F'.G.8S., with con- 
tributions by H. R. Mitt, LL.D. 8vo; pp. iv, 108, with map. 
Price 2s, 3d. 
f{\HIS work has been appropriately prepared by Mr. Tiddeman, who 
studied geology under John Phillips at Oxford, and after many 
years service on the geological survey retired to the neighbourhood of 
his Alma Mater. 
The strata which come to the surface in the county include the 
entire Jurassic series, the Cretaceous from the Shotover Sands and 
Lower Greensand to the Upper Chalk, together with Reading Beds, 
London Clay, Pleistocene, and Recent deposits. The principal water- 
bearing strata are the Inferior and Great Oolite Series, Corallian, 
Lower and Upper Greensand, Chalk, and Valley Gravel. The deepest 
boring, that at Burford Signet, made during the years 1874-7, 
was carried to the base of the New Red Sandstone Series (depth 
1184 feet), and then into Coal-measures (226 feet), the total depth being 
1410 feet.’ The object was apparently to reach Coal-measures, but 
why no further proceedings were taken when those strata were reached 
has not been made known. As a rule the waters obtained in 
Oxfordshire beneath the Oxford Clay and Kellaways Beds have proved 
to be saline, notably at Oxford itself, at Upper Arncot, Bampton, and 
Kidlington. Where not covered by Oxford Clay good supples have, 
as a rule, been obtained from the Great Oolite beneath the Forest 
Marble and Cornbrash, and from the Inferior Oolite, as at Bicester. 
Saline waters have beer encountered also in the Lower Greensand 
beneath the Gault at Shillingford. Mr. W. W. Fisher, who has 
contributed records of many analyses, remarks that in the waters 
below the Oxford Clay the amount of alkaline salts is usually so great 
that the supplies are unfit for domestic or industrial purposes. He 
believes that the alkalies are normal constituents of the strata, and 
that they have become concentrated in situations where little or no 
circulation has been possible. Long-continued pumping ought in 
these circumstances to improve the supplies. 
Dr. Mill contributes a map and explanatory notes on the rainfall. 
There is also a bibliography, drawn up on similar lines to that noticed 
in the Hampshire Memoir. 
DECADE V.—VOL. VII.—NO, VIII, 24 
