ON PHOTOGRAPHS OF GEOLOGICAL INTEREST. 325 



Carboniferous Limestone, Draughton, York- 

 shire. 15 P. 



n )» »» ^5 r, 



Purbeck rocks, Stair Cove, Lulworth. 3 P. 



>j »» n »t ** ^• 



„ „ „ near view. 6 S. 



Carboniferous rocks, Hartland. 6 S. 

 Ordovician rocks, Hope, Salop. 1 P. S, 

 Elland flagstones, Armley, Yorkshire. 45 P. 

 Ancient Quartzite, Minaun Head, Achill. 

 9 P.* 

 1576 ,, .... Ordovicianrocks.Portraine, Dublin. 11 P. S. 



1728 Fold with middle limb Mulroy Bay, Donegal. 9 P. 

 pinched out. 



Faulting. 



1616 Trough fault Coal-measures with coal-seam near Kimber- 



ley, Notts. 2 P. 

 1361 Fault Gannister, Rowley's Quarry, Leeds. 3 P. 



Brecciation. 



203 ' Breccia-gash,' Magnesian Marsden, Durham. 16 P.* 

 Limestone. 

 1208 ' Crush conglomerate.' . . Isle of Man. 1 P. 



Jointing. 



66 Flagstones, worn into cave Old Red Sandstone, Holburn Head, Caith- 



and arch. ness. 17 P.* 



1078 Devonian rocks. . . . Castle Rock, Lynton, Devon. 3 S. 



101 Carboniferous Limestone, Near Grange, Lancashire. 3 P. S. 



' Grikes.' 



102 „ „ „ „ 3 P. S. 

 1504 „ „ Hunt Pot, Ribblesdale. 18 S. 



In the last three cases the joints are weathering into caves. 



Unconformity. 

 424 Raised beach on Devonian Hope's Nose, Devon. 13 P. 

 rocks. 

 80 Llandovery on Arenig rocks. . Hope Dingle, Salop. 1 P. S. 

 180 Carboniferous on ancient rocks. Thornton Force, Ingleton. 3 P. S. 

 1629 Magnesian Limestone on Blill- Knaresborough. ' 3 P. 



stone grit. .... 

 1276 Trias resting on pre-Cambrian Woodhouse Eaves, Charnwood Forest. 1 P. S. 



slates. 

 1581 Carboniferous Limestone on Moughton, near Settle. 11 P. S. 



Ordovician rocks. 

 1697 Lias on Carboniferous Lime- Southerdown, Glamorgan. 43 P. 



stone. 

 1596 Cretaceous conglomerate on Murlough Bay, Antrim. 9 P.* 

 Trias. 



Surface Agencies; Denudation and Deposit. 



Running Water; streams. 



839 Storm Gorge Langtoft, near Driffield. 19 P. 



Glenariff, Antrim. 9 P. S.* 

 Rumbling Bridge, Dunkeld. 13 P. 

 Pistj'll Rhaiadr, Montgomeryshire. 20 P. 

 Rocky Valley, Tintagel. 3 S. 



963 Pot-hole in stream 

 434 

 57 Waterfall. 

 1084 



1569 „ over Yoredale Rocks. Hardraw,Scar,Hawes, Yorkshire. 3 P. 



