iv TABLE OF CONTENTS. 



Page 



Gray, Thomas, Esq. On Gray and Milne's Seismographic Apparatus 218 



, and Prof. J. Milne on the Elasticity and Strength-constants 



of Japanese Rocks 139 



Hausler, Dr. R. Notes on some Upper Jurassic Astrorhizidse and 

 Lituolidae. (Plates II. & III.) 25 



Hicks, Dr. H. On the Metaniorphic and Overlying Pocks in parts 

 of Ross and Inverness Shires. With notes^on the Microscopic 

 Structure of some of the Rocks, by Prof. T. G. Bonney. (Plate 



vi.) ..: ui 



Hudleston, W. H., Esq. Notes on a Collection of Fossils and of 

 Rock-specimens from West Australia., north of the Gascoyne 

 River. (Plate XXIIL) . . . 582 



Irving, Rev. A. On the Mechanics of Glaciers, with especial 



Reference to their supposed Power of Excavation 62 



. On the Origin of Valley-Lakes, with especial Reference 



to the Lakes of the Northern Alps 73 



Judd, Prof. J. W. On the Basalt-glass (Tachylyte) of the Western 



Isles of Scotland. (Plates XIII. & XIV.) 444 



Jukes-Browne, A. J., Esq. On the Relative Ages of certain 



River-valleys in Lincolnshire 506 



Keeping, H., Esq., and E. B. Tawney, Esq. On the Section at 

 Hordwell Cliffs from the top of the Lower Headon to the base 

 of the Upper Bagshot Sands 566 



Milne, Prof. J., and T. Gray, Esq. On the Elasticity and Strength- 

 constants of Japanese Rocks „ 139 



Monckton, H. W., Esq. The Bagshot Beds of the London Basin . 348 



Owen, Prof. R. On Generic Characters in the Order Sauropterygia. 133 



. On the Skull of Megalosaurus. (Plate XI.) 334 



Reade, T. Mellard, Esq. The Drift-beds of the North-west of 

 England and North Wales. Part II. Their Nature, Stratigraphy, 

 and Distribution. (Plate V.) 83 



Seeley, Prof. H. G. On the Dorsal Region of the Vertebral Column 

 of a new Dinosaur (indicating a new genus, Sphenospondylus) 

 from the Wealden of Brook in the Isle of Wight 55 



. . On the Dinosaurs from the Maastricht Beds 246 



Sollas, Prof. W. J. Descriptions of Fossil Sponges from the In- 

 ferior Oolite, with a Notice of some from the Great Oolite 

 (Plates XX. & XXI.) 541 



. The Estuaries of the Severn and its Tributaries ; an in- 

 quiry into the nature and origin of their tidal sediment and 

 alluvial flats 611 



Tawney, E. B., Esq., and H. Keeping, Esq. On the Section at 

 Hordwell Cliffs from the top of the Lower Headon to the base 

 of the Upper Bagshot Sands 566 



