BRITISH ISLES. 



Barrois, Dr. Ch. Note sur la zone a Pectea asper (tadrtia) on 

 Angleterre. \_Pecten as^er zone in England.] Ann. Soc. Geol. 

 Nord, t. iii. p. 92. 



L'age de la pierre de Tottornhoe. [Age of the Tottemhoe 



Stone.] Ann. Soc. Geol. Nord, t. iii. pp. 145-149. 

 Notices the errors made regarding its stratigraphical position, and 

 that M'r. Whitakcr had shown it to overlie the U. Greensand. States 

 that the highest beds now seen in the quarries represent the zone of 

 Ammonites Rotomagetisis (about 30 feet), that the next 30 feet are the 

 equivalents of the Amm. varicms zone, and below these come the 

 Tottemhoe Beds, which consequently belong to the horizon of Ploco- 

 sci/phia moiindrina. At the base of all he finds the equivalent of the 

 Chloritic Marl. A. J. J-B. 



Belt, Thomas. The Drift of Devon and Cornwall, its Origin, Cor- 

 relation with that of the South-east of England, and Place in the 

 Glacial Series. Quart. Journ. Geol. Soc. vol. xxxii. pp. 80-90 ; 

 woodcut. 

 S. of a line from the Thames past Cirencester to the Severn at the 

 mouth of the Avon there are no glaciated rock-surfaces, till, or 

 moraines. The superficial beds may be divided into upland deposits, 

 containing travelled boulders, covering the highlands, and lowland de- 

 posits filling up the valley-bottoms. These deposits contain no marine 

 shells ; they are separated from each other by driftless slopes. The 

 first stage of the glacial period was the withdrawal of much water from 

 the sea to form ice, which was piled up at the Poles, leaving the beds of 

 the English Channel and German Ocean dry : over this surface Palaeo- 

 lithic man and the great Mammalia passed ; the Germanic River 

 flowed from the area now covered by the German Ocean. The ice 

 advanced from the N. across the Atlantic, finally blocking up the 

 English Channel and the drainage of N. Europe, forming a vast lake, 

 on which floated icebergs from the N. When this icy barrier gave way 

 the waters were suddenly let loose ; the lowland gravels of the S. of Eng- 

 land and the middle sands and gravels of the Eastern Counties were 

 spread ont. The glacier again advanced, and the U. Boulder Clay of 

 Norfolk and Sufiblk was formed. The ice retired northwards ; but the 

 sea had not yet returned to its former level ; the British Islands were 

 still joined to the continent, allowing the immigration of Neolithic man 

 and the existing fauna. W. T. 



On the Geological Age of the Deposits containing Elint 



Implements, at Hoxne . . . . , and the Ilelation that Palaiolithic 

 Man bore to the Glacial Period. Quart. Journ. Sci. n. s. vol. vi. 

 pp. 289-304. 

 Describes the deposits, urging that they are continuous with the 



^fiddle Glacial beds, instead of occupying a hollow 8cooi)ed in the U. 



Boulder Clay, as has been thought. W. H. D. 



