1869.] ( 575 ) 



NOTICES OF SCIENTIFIC WORKS. 



The Scenery of England and Wales ; its Character and Origin, 

 being an Attempt to trace the Nature of the Geological Causes, 

 especially Denudation, by which the Physical Features of the 

 Country have been produced. With 86 Woodcuts. By D. 

 Mackintosh, F.G.S. 8vo. Pp. 399. London: Longmans 

 and Co. 



This is the title of a new work on Physical Geology by Mr. U. 

 Mackintosh, F.G.S., who has, during the past five years, con- 

 tributed many original articles upon this subject to the ' Quarterly 

 Journal of the Geological Society,' the ' Geological Magazine,' &c. 

 In pursuing his professional engagements as a lecturer on geology, 

 &c., the author has travelled through the length and breadth of 

 England and Wales, and devoted a large part of his time to making 

 careful observations of all the most striking points of geological 

 interest within his reach. 



The book commences with a descrij)tion of the causes of denu- 

 dation and the origin of natural scenery in various parts of the 

 world. The second and main portion of the work is devoted to a 

 classification, description, and attempted explanation of the various 

 forms or types of scenery in England and Wales, included under 

 the heads Escarpments, Cwms, Combes or Corries, Passes, Longi- 

 tudinal Yalleys, and Transverse Gorges. 



The thu'd part is devoted to excursions to special places of 

 geological interest in England and Wales. 



Mr. Mackintosh, by his previous writings, had identified him- 

 self as an advocate of " Marine Denudation," and as strongly op- 

 posed to the modern school of " Subaerialists," as an ultra example 

 of whom we may cite Colonel George Greenwood, who has, in an 

 amusing book^ (entitled ' Eain and Kivers ' *) set forth his views, 

 which are the very antithesis of those of Mr. Mackintosh, but 

 nevertheless contain many excellent observations on Subserial 

 Denudation. 



In travelling East or West — from the plain of the Medway 

 to the Great Orme's Head — or from Dawlish and Dartmoor in 

 the South, to Morecambe Bay and Keswick in the North, Mr. 

 Mackintosh points out that, from the present coast-lines to the 

 top of Snowdon, the sea has left its mark on many a Scar and 

 Crag, and that, in fancy at least, we may still hear its murmur in 



* 2iid Edition, 1866. London : Longmans and Co. 



