CONTENTS. XI 



PAGE 



than supposed, 62 ; Ice-dressed rocks, Spiddal, County Gal- 

 way, 63 ; Work of glaciers large at first, 64 ; afterwards 

 small, 66; Moraine-drift, West Pacific slopes, 66; Ice- 

 dressed rocks, West Galway, 67 ; Later glacial-work small, 



CHAPTER VI. 



THE DENUDANTS OP THE EARTH'S SURFACE METEORIC ABRASION 



All the surface of the earth not being denuded, 69 ; Jungle 

 and forest protectors, 70 ; Bog a protector, 70 ; Stones grow- 

 ing on the surface, 73; Grass a protector, 74; Meteoric 

 abrasion in South America and Abyssinia, 74 ; Present condi- 

 tions of Ireland, 75 ; Cliffs at Sheppy, Kent, 76 ; Lake District, 

 England, 77; Sun-work, 77; Cold, 80; Wind, 80; Cliffs, 

 Burren, County Clare, 81 ; Devonshire, 81 ; Slates, Counties 

 Cork and Kerry, 82 ; Mushroom rocks, 83 ; Effects of wet 

 years, 85 ; Rain and rivers, 86 ; Chemical action, 87. 



CHAPTER VII. 



THE RELATIONS BETWEEN FAULTS, OPEN JOINTS, AND THE FORMA- 

 TION OP VALLEYS ...... 



Professor Le Conte's theory, 88 ; Protrusions of irruptive 

 rocks, 89 ; Valleys of Dublin and Wicklow, 90 ; of Slieve Gal- 

 lion, County Derry, 90 ; Valleys in glacial- drift, 91 ; Dana's 

 theory of subglacial rivers, 92 ; Valleys of the Nore, Barrow, 

 Suir, and Glenniore, 92 ; Changes in the level of S.E Ireland, 

 93 ; Valleys on anticlinal axes, 94 ; Width of an anticlinal 

 valley, 95 ;, Folded strata, 95 ; Cliffs N.W of Knocknadober, 

 County Kerry, 96 ; Gorges along faults, 97 ; Faults making 

 marked features, 97 ; Fissures in Counties Cork and Kerry, 98 ; 

 Systems of valleys, Ireland, 99 ; Systems of faults, 100 ; 

 Dingle Bay and Mallow fault, 101 ; Post-carboniferous 

 faults, 101 ; Slieve Aughta, its faults and valleys, 102 ; 

 North-and-south valleys, Ireland, 106. 



