BRITISH I81E8. • 15 



Ullswater and Cross Fell, together with many from the N.W. of the 

 Lake District and the S.W. of Scotland. After giving reasons for 

 rejecting any theory of boulder transport by floating ice, the author 

 dis(;usses the effects of glacial erosion upon the preglacially weathered 

 surface. He then considers the origin of the various forms of Drift, 

 and concludes that they are the variously modified forms of sediment 

 once dispersed throughout the entire thickness of the ice-sheet, and 

 that they contain no evidence of marine action. Calls attention to the 

 limited amount of denudation that has taken place in Post-Glacial 

 times. J. G. G. 



Grainger, Rev. Dr. J. On the Fossils of the Post-tertiary Deposits 

 of Ireland. Rep. Bmt. Assoc, for 1874 ; Sections, pp. 73-76. 



Gives lists of fossils from the following localities, the figures denoting 

 the number of species at each : — Dungiven, co. Derry, 6; Ballyrudder, 

 CO. Antrim, 35; Balbriggan, co. Dublin, 24; Howth, co. Dublin, 22; 

 Ballybrack, near Killiney, co. Dublin, 13 ; Lame Curran, co. Antrim, 

 25 ; Portrush, co. Antrim, 54. W. T. 



Green, Prof. A. H. Variation in thickness and character of the 

 Barnsley and Silkstone Coal-seams in South Yorkshire, and the 

 probable origin of this and similar changes. Coll. Guard, vol. 

 XXX. pp. 601, 602. 



Report of Address at Meeting of N. of England and Midland En- 

 gineers. Will be published in full. 



Greenwell, G. C. On Basalt and its Effects. Trans. Manch. Geol. 

 Soc. vol. xiii. pp. 304-324, plate, and Coll. Guard, vol. xxix. 

 pp. 342, 343. 



The British localities and physical characteristics of Basalts are de- 

 scribed, especially that of Salisbury Crags and the Garlton district, 

 near Addington. The Whinstones of the north of England are classified 

 into dykes, running in straight lines, like the Cockfield Dyke, 60 miles 

 in length, and surface overflows, as the great Whin Sill of Durham. 

 Concludes with a notice of the Antrim basalts, which are described as 

 resting on "Coal-measures" [? Miocene lignites] east from the Giants' 

 Causeway. C. E. De K. 



Greenwood, CoL G. Denudation of the Weald. Geol. Mag. dec. 2, 

 vol. ii. pp. 282, 283. 



Claims priority as regards the subaerial theory of the Denudation of 

 the Weald. The gravels of the Weald, and their bearing on this 

 theory, are referred to. W. T. 



Grieve, D. Note relative to the Bed of the South Esk River at 



Newbattle, in connection with Fossils found there. Proc. E. Phys. 



Soc. Edin. sess. 1874-75, pp. 57-60. 



Refers to a portion of the river between Newbattle and Lothian 



bridge. The bed is composed of horizontal micaceous sandstone, with 



several species of Carboniferous ferns and other plants, a list of which 



