ON PHOTOGRAPHS OF GEOLOGICAL INTEREST. 329 



Ancient Surface Features. 



Perched Boulders. 

 Eegd. 

 No. 



1381 Boulder resting on denuded Norbcr. 3 P. 



limestone pedestal. 



1382 ,, „ „ „ 3 P. S. 



Brift-Jilled Valleys. 



1340 In chalk now being re-excavat- Flamborough. 3 P. S. 



ed by the sea. 

 1762 In ' Skiddaw Slate ' being re- Isle of Man. 1 P. S. 



excavated by stream of 



Glen Wyllin. 



Trias-Jilled Valleys. 



1270 In slates Swithland Wood, Charnwood. 1 P. S. 



1271 „ „ „ „ IP. S. 



1292 In Bardon Rock, along old Bardon, Charnwood. 1 P. S. 



crush-planes. 



Dry Valleys and Caverns. 



1368 In Mountain Limestone. . . Malham and Gordale. 3 P. S. 



1373 „ „ „ 3 P. S. 



1370 „ Dry Waterfall „ 3 P. S. 



859 „ „ . . . Cheddar Gorge. 2 P. 



Buried Cliffs and Taluses. 



1460 Pre-Glacial SewerbyClifiF, Bridlington Quay. 35, 36 P. 



972 Chalk cliff and scree covered by Cave Hill, Belfast. 9 P.* 

 Tertiary Basalts. 



Characteristic Rocks and Landsca])es. 

 Pre-Palmuzoic, 



73 Archaean Gneisses, &c. . . Whitenhead, Sutherland. 17 P.* 



74 17 P * 

 1274 Pre-Cambrian ' Slate-agglome- Bradgate Park, Charnwood. 1 P. S. 



rate.' 

 981 Ancient rocks covered by Tertiary Murlough Bay, Antrim. 9 S.* 

 Basalts. 



Palmozoic. 



1645 Cambrian slates, &c. . . . Howth, Dublin. 37 P. 



603 Tremadoc Slates intruded upon Foel Tan-y-Grisiau, Merioneth. 31 P. 



by granitite. ■ 



436 Wenlock Limestone. . . . Wenlock Edge, Salop. 1 P. S. 



726 Old Red Sandstone lavas and Pentland Hills. 23 P. 



tuffs. 



801 Tilted Old Red Sandstone. . . CriefE and Comrie Railway. 28 P. 



474 Carboniferous Limestone. . . Dovedale, Derbyshire. 3 P. 



864 „ „ . . . Binder Wood, Mendip Hills. 2 S. 



1422 „ „ . . . Cheddar, Somerset. 22 P. 



1423 „ „ . . . „ „ 22 S. 



135 „ „ . . . Great Orme's Head, Llandudno. 3 P. S. 



512 ,, „ brecciated. Near Gargrave. 5 P. 



580 „ „ and Volca- Brent Tor, Devon. 6 S. 



nic Rocks. 



1113 Yoredale Beds Bolton Abbev. Yorkshire. 3 P. 



405 Ballagan Beds Strathblane, Stirling. 24 P.* 



717 Carbouiferoua Velcanic Rocks. . West of Elie, Fife. 23 P. 



