CONTENTS. 



PART I. 



I. Observations on the Geology of Northumberland and Durham. By 



N. J. Winch, Esq. F.L.S. Honorary Member of the Geological 

 Society - - - - - - p. 1 



II. On a Whin Dyke traversing Limestone in the County of Northum- 



berland. By the Hon. Henry Grey Bennet, M.P. F.R.S. Vice- 

 President of the Geological Society - - - p. 102 



III. Desci iption of an insulated Group of Rocks of Slate and Greenstone, 



in Cumberland and Westmoreland on the east side of Appleby 

 between Melmerby and Murton. By the Rev. William Buckland, 

 B.D. Professor of Mineralogy in the University of Oxford, and 

 Member of the Geological Society - - - - p. 105 



PART II. 



IV. Observations on the Mountain Cruachan in Argyleshire ; with some 



Remarks on the surrounding Country. By John Mac Culloch, 

 M.D. F.L.S. President of the Geological Society, Chemist to the 

 Ordnance, Lecturer on Chemistry at the Royal Military Academy, 

 and Geologist to the Trigonometrical Survey - - p. 117 



V. Account of some remarkable Disturbances in the Veins of the Mine 



called Huel Peever, in Cornwall. By John Williams, Esq. 

 Honorary Member of the Geological Society - p. 139 



VI. Description of the Tunnel of the Tavistock Canal, through Morwel 



Down, in the County of Devon. By John Taylor, Esq. Treasurer 

 of the Geological Society - - - - - p. 146 



b 



