35 



January 22. — On the Structure and Classification of the Transition 

 Rocks of Shropshire, Herefordshire and part of Wales, and on the 

 Lines of Disturbance which have affected that Series of Deposits, 

 including the Valley of Elevation of Woolhope ; by Roderick Impey 

 Murchison, Esq. F.G.S. 



February 5. — On some of the Faults which affect the Coal-field of 

 Coalbroolidale, and on the occurrence of Trilobites and Marine 

 Testacea, associated with Freshwater Shells in the Ironstone of 

 that District ; by Joseph Prestwich, Esq. F.G.S. 



On the Coal-field of the Forest of Wyre, near Stourport, 



in Shropshire ; by the Rev. Thomas England, F.G.S. 



On the Freshwater Formation of Cerdagne in the Py- 



renees, and on the evidences which that Chain affords of oblite- 

 rated Lakes at different altitudes j by Charles Lyell, Esq. For. Sec. 

 G.S. 



