CONTENTS. 



VII. Corrections and Additions to the Sketch of the Mineralogy of Sky, 



published in the Third Volume of the Transactions of the Geological 

 Society. By John Mac Culloch, M.D. F.L S. President of the 

 Geological Society, Sec 6}c. - - - - p. 156 



VIII. On the Strata in the Neighbourhood of Bristol. By Richard Bright, 



M.D. Member of the Geological Society. With Notes, extracted 

 from the Communications of George Cumberland, Esq. Honorary 

 Member of the Geological Society - - - p. 193 



Note on Magnesian Breccia. By Henry Warburton, Esq. Vice- 

 President of the Geological Society - - p. 205 



IX. On the Magnesian Limestone and Red Marie or Sandstone of the 



Neighbourhood of Bristol. By W. H. Gilby, M.D. - p. 210 



X. On the Strata at Whorlbury Camp, in Somersetshire. By George 



Cumberland, Esq. Honorary Member of the Geological Society p. 216 



XI. Observations on the Hill of Kinnoul, in Perthshire. By John 



Mac Culloch, M.D. F.L.S. President of the Geological Society, 



Sfc.Sfc. - - - - r • - - - p. 220 



XII. Account of some attempts to ascertain the angles of the Primitive 



Crystals of Quartz and of the Sulphate of Bury its, by means of the 

 reflecting Goniometer, together with practical reasons for presuming 

 that the admeasurements assigned by Hauy to several varieties of 

 the parallelopiped and of the octohedron are inaccurate. By William 

 Phillips, Member of the Geological Society - - p. 233 



XIII. On the Measurement, by the reflecting Goniometer, of certain primi- 



tive Crystals ; with Observations on the methods of obtaining them 

 by mechanical division along the natural joints of Crystals. By 

 William Phillips, Member of the Geological Society - p. 241 



XIV. Supplementary Observations on Quartz Rock, made in 1814, By 



John Mac Culloch, M.D. F.L.S. President of the Geological 



Society, Sfc. S?c. - - - - p. 264 



XV. Description of a series of Specimens from the Plastic Clay near 



Reading, Berks. With Observations on the Formation to which 

 those Beds belong. By the Rev. William Buckland, B.D. Member 

 of the Geological Society, and Professor of Mineralogy in the 

 University of Oxford - - - - p. 277 



