BRITISH ISLES. 29 



of other animals also occur; but in the recesses the hyaena occurs 

 alone. -W.T. 



Pengelly, W. Notes on Recent Notices of the Geology and Paleon- 

 tology of Devonshire. — Part III. Trans. Devon. Assoc, vol. viii. 

 pp. 148-244. 



Corrections of statements published during the preceding twelve 

 months regarding Brixham and Kent's Caverns. 



First Report of the Committee on Scientific Memoranda. 



Trans. Devon. Assoc, vol. viii. pp. 439, 440. 



Notices the existence of a group of boulders at Langtree, North 



Devon, about 500 feet above sea-level, and the discovery of a portion 



of antler of Cervus elaphus on Tor Abbey sands. T. M. H. 



. Kent's Cavern : its Testimony to the Antiquity of Man. 



(Glasgow Science Lectures.) Pp. 32 ; 10 woodcuts. 8vo. London 



and Glasgow. 

 Gives a history of the exploration, and a summary of the results. 



Penning, W. H. Notes on the Physical Geology of East Anglia 

 during the Glacial Period. Quart. Joum. Geol. Soc. vol. xxxii. 

 pp. 191-204, pi. XV. (map and section). 



The main feature of the district is the Chalk Escarpment, from 300 

 to 500 feet high ; to the N. and W. of this is the Cambridge Valley, of 

 pre-glacial age ; to the S. and E. the ground falls towards the Ter- 

 tiaries of the London Basin. The order of events was as follows : — 

 After the formation of the Cromer Forest- bed the land gradually sank : 

 the " pebbly sands " were first formed along the advancing shore-line ; 

 then the L. Glacial series, by means of icebergs. As submergence 

 went on, a strong current swept between the North Sea and the Atlantic, 

 spreading out the sands and gravels known as Middle Glacial. The 

 high land of chalk prevented this current from entering the Cambridge 

 Valley ; hence there is no Middle Drift in that area, but the sands 

 spread far up the S. slope of the Chalk. Continued submergence allowed 

 the sea to cross the Chalk escarpment at its lower points ; this checked 

 the current, and the deposition of gravel was gradually stopped. The 

 land still sank, and was at last quite submerged. Icebergs then spread 

 the U. Glacial Clay over the whole area. As the land rose, " denuda- 

 tion gravels " were formed by the sorting action of the waves ; these 

 are found on the higher land on both sides of the escarpment. In the 

 Cambridge Valley there are three or more terraces of gravel at various 

 heights. There are also gravels at from 20 to 60 feet above the Cam ; 

 these gravels have in some respects a Middle Glacial look ; but the 

 author refers them all to river-action, and he believes that there are no 

 L. or M. Glacial deposits within the area of the Cambridge Valley. 



W.T 



