CONTENTS. 



XXVIII. Analysis of one hundred parts of a dark Bituminous Limestone, 

 from the Parish of Whiteford, in Flintshire, V th Wales. By 



Edward Daniel Clarke, L.L.D. Professor of Mineralogy in the 

 University of Cambridge, and Honorary Member of the Geological 

 Society - - - - - - - P- 430 



XXIX. Barometrical Measurements. By William Allen, Esq. F.R.S. 



and Samuel Woods, Esq. Members of the Geological Society - p. 434 



XXX. Notice concerning the Shropshire Witherite. By Arthur Aikin, 



Esq. Member of the Geological Society, and Secretary to the Society 

 for the Encouragement of Arts, Manufactures and Commerce p. 438 



XXXI. Extracts from the Minute Book of the Geological Society - p. 443 

 List of Donations ------- p. 451 



Index ----._-_ p, 459 



