iv TABLE OF CONTENTS. 



Page 



Gesner, Dr. A. On the Petroleum-springs in North America. 



[Abstract.] 3 



Harkness, Prof. R. On the Metamorphic Rocks of the BaniFshire 



Coast, the Scarabins, and a Portion of East Sutherland 331 



. On the Position of the Pteraspis-beds, and on the Sequence of 



the Strata of the Old Red Sandstone Series of South Perthshire. 253 



. On the Sandstones and their associated Deposits in the Vale 



of the Eden, the Cumberland Plain, and the South-east of Dum- 

 friesshire 205 



Haughton, The Rev. S. Experimental Researches on the Granites 



of Ireland. Part III. On the Granites of Donegal 403 



Heer, Prof. O. On certain Fossil Plants from the Hempstead Beds 

 of the Isle of Wight ; with an Introduction, by W. Pengelly, 

 Esq. (With 1 Plate.) 369 



HiSLOP, The Rev. S. Supplemental Note on the Plant-bearing 



Sandstones of Central India 36, 113 



HoNEYMAN, The Rev. D. On the Geology of the Gold-fields of Nova 



Scotia. [Abridged.] 342 



Hull, E., Esq. On Iso-diametric Lines, as means of representing 

 the Distribution of Sedimentary Clay and Sandy Strata, as di- 

 stinguished from Calcareous Strata, with special reference to the 

 Carboniferous Rocks of Britain. (With 1 Plate.) 127 



Huxley, Prof. T. H. On a Stalk-eyed Crustacean from the Carboni- 

 ferous Strata near Paisley 420 



. On new Labyrinthodonta from the Edinburgh Coal-field. 



(With 1 Plate.) 291 



. On the Premolar Teeth of Diprotodon, and on a new Species 



of that Genus. (With 1 Plate.) 422 



Jamieson, T. F., Esq. On the Ice-worn Rocks of Scotland 164 



Jukes, J. B., Esq. On the Mode of Formation of some of the River- 

 valleys in the South of Ireland. (With 2 Plates.) 378 



Key, J. IL, Esq. On the Bovey Deposit. [Abridged.] 9 



KiRKBY, J. W., Esq. On some Remains of Chiton from the Moun- 

 tain-limestone of Yorkshire 233 



Lister, The Rev. W. On the Drift containing Recent Shells, in the 



neighbourhood of Wolverhampton 169 



Morris, Prof. J., and G. E. Roberts, Esq. On the Carboniferous ^ 

 Limestone of Oreton and Farlow, Clee Hills, Shropshire ; with 

 a Description of a new PtericJdhys, by Sir P. de M. G. Egerton, 



ipiK 

 (W 



Bart. (With 1 Plate.) 94 



Morton, G. H., Esq. On Glacial Surface- markings on the Sand- 

 stone near Liverpool 377 



NicoL, Prof. J. On the Geological Structure of the Southern Gram- 

 pians. [Abstract.] 443 



