CONTENTS, 



I. A Sketch oftheMineralogi/ of Sky. Bt/ John MacCulloch, M.D. RL.S. 



President of the Geological Societj/, Chemist to the Ordnance, and 

 Lecturer on Chemistry at the Royal Military Academy at Woolwich p. I 



II. On the Oxyd of Uranium, the production of Cornwall, By Mr. Win. 



Phillips, Member of the Geological Society - - p. 112 



III. On the Geological Features of the North-eastern Counties of Ireland. 



Extracted from the Notes of J. F. Berger, M.D. Member of the 

 Geological Society. With an Introduction and Remarks, by the 

 Rev. W. Conybeare, Member of the Geological Society - p. 121 



Descriptive Notes referring to the Outline of Sections presented by a 

 part of the Coasts of Antrim and Derry. By the Rev. W. Conybeare, 

 Member of the Geological Society - - " P- 1^6 



IV. On the Dykes of the North of Ireland. By J. F. Berger, M.D. 



Member of the Geological Society - - ■ P* '^^^ 



V. Some Remarks upon the Structure of Barbadoes, as connected with 



Specimens of its Rocks. By Joseph Skey, M.D. Physician to the 

 Forces - - - - - - P- 236 



VI. Outlines of the Geology of Cambridgeshire. By the Rev. J. Hailstone, 



F.R. 8f L. S. Woodwardian Professor in the University of Cam- 

 bridge - - - - - " P- 243 



VII. Some Observations on a Bed of Trap occurring in the Colliery of 



Birch Hill, near Walsall, in Staffordshire. By Arthur Aikin, Esq. 

 Secretary to the Geological Society. - - " P« ^^^ 



