r,25 OF CON'* 



TABLE OF CONTENTS. 



Page 



Abbott, George, Esq. The Cellular Magnesian Limestone of 



Durham (Abstract) , . 51 



\rbee, E. A. Newell, Esq. The Fossil Flora of the Cumberland 

 Coalfield, and the Palseobotanical Evidence with regard to the 

 Age of the Beds (Plates I & II) 1 



. Notes on some Fossil Plants collected by Mr. Molyneux 



in Rhodesia 288 



Arnold-Bemrose, Henry Howe, Esq. Geology of the Ashbourne 

 & Buxton Branch of the London & North- Western Railway : 

 Crake Low to Parsley Hay (Plates XXII & XXIII) 387 



Avebtjry, the Lord. An Experiment in Mountain-Building .... 348 



Ball, Dr. John. The Semna Cataract or Rapid of the Nile : a 



Study in River-Erosion (Plates III & IV) 65 



Bonney, Prof. Thomas George. The Magnetite-Mines near 



Cogne (Graian Alps) . , 55 



& John Parkinson, Esq. On Primary and Secondary 



Devitrification in Glassy Igneous Rocks (Plate XXVI) 429 



Buckman, S. S., Esq. The Toarcian of Bredon Hill, and a Com- 

 parison with Deposits elsewhere 445 



. Two Toarcian Ammonites (Plates XXVII & XXVIII) . . 459 



Coomaraswamy, Ananda K., Esq. Observations on the Tiree 



Marble, with Notes on others from Iona (Piates VI & VII) 91 



Dawkins, Prof. William Boyd. On the Discovery of an Osssi- 

 ferous Cavern of Pliocene Age at Dove Holes, Buxton, Derby- 

 shire (Plates VIII-XII) 105 



Gill, E. Leonard, Esq. Note on the Occurrence of Keisley 

 Limestone-Pebbles in the Red Sandstone-Rocks of Peel (Isle 

 of Man) 307 



Harker, Alfred, Esq. The Overthrust Torridonian Rocks of tlie 



Isle of Rum, and the Associated Gneisses (Plate XIV) 189 



a2 



