Xxvi FLOEA OF BERKSHIRE 



The above figui-es apparently show that on the western side of the 

 county there is a heavier rainfall than there is on the eastern side, 

 since the average rainfall at Faringdon from ten years' readings of 

 a gauge placed 340 feet above the sea is 25.49 inches, while at 

 Wallingford, on the east side of the county, only 21.72 inches were 

 registered. At Denford Park, near Hungerford, in the west of Berk- 

 shire, the yearly mean was 27.76, but at Reading, in the east, it was 

 only 23-26. At Wellington College, on the western side, the yearly 

 mean was 24.89, but at Cookham, on the east, it was only 23.16. 



Newbury and Yattendon, which are on about the same line of latitude, 

 have a different amount of rainfall. The Yattendon gauge is situated 

 440 feet above sea level, and the yearly mean is 24-60, while the 

 Newbury one, which is only 260 feet above the sea, has a yearly mean 

 of 26 05. 



At Wallingford in 1893 only 17-72 inches were registered ; the 

 highest yearly amount was registered at Faringdon in 1886, namely 

 34-26 inches. 



GEOLOGY OP BERKSHIRE. 



A brief sketch of the geology of the county is all that space allows. 

 The following works on the local geology are enumerated for the 

 convenience of those wishing to obtain fuller and more precise in- 

 formation : — 



Greology of Oxford and the Valley of the Thames, by John Phillips, 1871. 



Sections of the Strata near Oxford, John Pliillii>s, in Quart. Jovirn. Geol. 

 See. xvi. (i860) pp. 1 15-1 19, 307-311. Gravel near Maidenhead, Prof J. 

 Prestwich in Journ. Geol. Soc. xii. (1886) p. 131. Dr. Buckland in Trans. Geol. 

 Soc 2nd ser. ii. 



Bagshot Beds, W. H. Harries in Geol. Mag. n. s. dec. 2. viii. (1881) 171. 



Sections of Woolwich and Reading Beds at Reading, Prof. T. Rupert Jones 

 and C. Cooper King. 



Geol. and Physical Features of Bagshot District (1880), Geol. Ass. Proc. vi. 

 (1881) 429-446. 



Quart. Journ. Geol. Soc. xxxL (1875) p. 451. 



Geology of Berkshire in Kelly's Directory of Berks, Bucks, and Oxfordshire, 

 by W. Jerome Harrison, pp. 4-7, 1883. 



And the following Memoirs of the Geological Survey of the United 

 Kingdom : — 



The Geology of parts of Berkshire and Hampshire (Sheet 12). 



The Geology of parts of Oxfordshire and Berkshire (Sheet 13). 



The Geology of parts of Middlesex, Hertfordshiie, Buckinghamshire, 

 Berkshire, and Surrey (Sheet 7). 



The Geology of i»art of the Thames Valley (Sheets i, 2, and 7), London. 



The Jurassic Rocks of Britain, vol. v. 



The county is included in Sheets 7, 8, 12, 13, 34, 45 SW. of the One-Inch 

 Map of the Geological Survey of England and Wales. 



Another useful Map is the Index Map published by the Geological Survey 

 on the scale of 4 railes to an inch. Berkshire is given in Sheet 11. 



