CONTENTS. 



GEOLOGY OF ARRAN. 



PACK 



PHYSICAL FEATURES 



Dimensions Interest of the Island Mountain nucleus 



Hill Ranges Heights Southern plateau, ... 1 



OUTLINE OF GEOLOGY 



Granite abnormal in position The slates Granites of the 

 nucleus, coarse and fine Old red sandstone Carbon- 

 iferous series, 6 



THE OUTLYING GRANITES 



The Ploverfield granite Granite of Craig-Dhu Age of 

 the granites, 16 



THE TEAPPEAN ROCKS 



Their limits, and mineral distinctions Dikes, their number 



and range, .28 



GLACIAL ACTION 



Evidences of it Terraces and mounds Dispersed blocks 

 Theories of Glacial action Arctic shell beds, . . 35 



EXCURSIONS IN ARRAN. 

 I. To THE SUMMIT OF CIOR-MHOR 



Its advantages as a first excursion The Brodick monolith 

 Section of strata Glen Rosa granite junction The 

 Garbh-Alt Grand scenery Dikes Mountain plants 

 Origin of the Ceims Summit of Cior-Mhor Effects of 

 light, . . . ' . " . . , . . 49 



II. TO THE CORRIEGILLS SHORE 



The coast sandstone Their dikes and beds The great 

 boulder Dun-fion range and fort Porphyry and pitch- 

 stones Evening aspects, 68 



