VI 



Lid of Plates. 



PLATE 



XXV. 



XXVI. 



XXVII. 



XXVIII. 



XXIX. 



XXX. 



XXXI. 



FACING TAGE 



Pumices and Pumiceous Scoria from explosive eruptions, Monte 



Somma and Vesuvius ........ 442 



Cephalopods from the Tarntal Kopfe, in Tyrol 



Sections of the Orange Grove Granites 



Bothrodendron ; Sastimima ..... 



View of mouth of the Aheredw Valley .... 



Portrait of William Boyd Dawkins, M.A., D.Sc, F 

 F.S.A., F.G.S. 



R.S. 



Palirolithic Flint Implement from the Cambridgeshire Gravels, 

 near Hildersham ........ 



446 

 554 

 485 

 491 



529 



536 



