BRinSH ISLES. * 41 



having been removed by denudation. Cites this fact in support of his 

 opinion that the dry valleys or combes of the Cotteswolds have been in 

 great measure formed by the erosive action of springs thrown out by 

 the Fuller's Earth, at a period when that formation extended much 

 further westwards. H. B. W. 



Witchell, E. On the Angular Gravel of the Cotteswolds. Proc. 

 Ootteswold Club, vol. vi. pp. 146-153. 



This gravel occurs on the slopes of the hills, and is distinct from the 

 Oolitic Gravel of the river-valleys and from the Northern Drift. A 

 section at Longford's Lake, near Nailsworth, shows the Angular Gravel 

 overlying and partly intercalated with the Eiver Gravel, proving that 

 the former was being deposited when the stream was either depositing 

 or rearranging the latter, and before it had excavated the bottom of the 

 valley to its present depth. Sections at Hyde House and Pitchcombe 

 are also described. The Angular Gravel seems to be merely detritus, 

 due to the action of frost and surface-drainage. H. B. W. 



Wood, S. v., Jun. Physical Geology of East Anglia in the Glacial 



Epoch, (jfeol. Mag. dec. ii. vol. iii. pp. 284-286. 

 Believes the Chalk-escarpment of Cambridgeshire to be pre-glacial ; 

 but the rectilinear ridges of the Hog's Back, Portsdown, &c. to be post- 

 glacial. The East- Anglian valley-system is later than the L. Glacial 

 deposits, but earlier than the M. Glacial. W. T. 



Woodward, B. B. Note on a Section of the Thames YaUey-gravel 

 shown in digging for the foundations of the New Opera House on 

 the Thames Embankment, near Westminster Bridge. Froc. W, 

 Loncl. Sci. Assoc, vol. i. part iii. pp. 78, 79. 



Section 30 feet deep, in shingle, mud, peat, sand, and gravel. 



Woodward, H. B. The Geology of England and Wales. A concise 

 account of the Lithological Characters, Leading Fossils, and Eco- 

 nomic Products of the Hocks ; with notes on the Physical Features 

 of the Country. Pp. xx, 476, geological map, 28 woodcuts. 8vo. 

 London. 

 The rocks are described in ascending order. As a general rule the 

 classification of the Geological Survey is followed ; but to this there 

 are some exceptions. As regards the Cambrian and Silurian rocks the 

 author follows Sedgwick's classification. The term Devonian is 

 retained for the beds of Devonshire ; but the arguments for grouping 

 them with the Old lied and Carboniferous are also given. The Per- 

 mian and New Ked arc described together under the term Poikilitic. 

 The Khaitics are regarded as passage-beds between the New lied Marl 

 and Lias ; the Midford Sands as passage-beds between the Lias and 

 Oolite. Recent researches regarding the Oolites are described, and 

 their conclusions adopted. The Hempstead Beds are retained in the 

 Eocene ; the Bovey Beds in the Miocene. The Pliocene is classified aa 



