EXPLANATION OF THE PLATES. 



Plate Page 



('Map showing the intra-Oretaceous and post-Cretaceous 

 Disturbances near Weymouth ; and 

 Sections through and across the Isle of Purbeck Dis- 

 turbance, AND ACROSS THE ChALDON AND RlDGEWAY DlS- 



I turbances, to illustrate Mr. A. Strahan's paper on Over- 



^ thrusts of Tertiary date in Dorset 549 



{Sketch-map op the Isle op Man, to illustrate Mr. G-. W. 

 Lamplugh's paper on the Crush-Conglomerates of that 

 Island 563 



XX. & 

 XXI. 



Microscopic sections of the Crush-Conglomerates and asso- 

 ciated Rocks in the Isle op Man, to illustrate Mr. W. W. 

 Watts's Petrographical Notes on the same 588 



(Microscopic sections of Radiolaria from the Melbourn 

 Rock, to illustrate Messrs.W. Hill and A. J. Jukes-Browne's 

 paper on the occurrence of those fossils in Chalk 600 



XXIII. f Geological Sketch-map of Devon, West Somerset, and 



Cornwall ; 



XXIV. Section of the Codden Hill Beds at Carzantic Quarry ; 

 XXV.- Specimens of Radiolaria from the Lower Culm Mea- 



XXVII. ■{ sures ; and 



XXVIII. Specimens of Trilobites, Brachiopods, and Corals from 

 the Lower Culm Measures, to illustrate Messrs. Gr. J. 

 Hinde and Howard Fox's paper on the Radiolarian Rocks 

 ^ of that sei'ies in West Somerset, Devon, and Cornwall ...609 



