viii LIST OF PLATES VOLUME VI 



RIPPLE MARKS AND FOOTPRINTS, TRIASSIC SANDSTONE 



SAND GRAINS (MAGNIFIED) ....... 



BOULDER CLAY, NEAR RICHMOND, YORKSHIRE .... 



GLACIATED BOULDER. WITHERNSEA ...... 



CRINOIDAL LIMESTONE, SILURIAN. DUDLEY ..... 



OLD RED SANDSTONE CONGLOMERATE. FORFAR .... 



SILURIAN LIMESTONE, WITH BRACHIOPODS, CRINOIDS, AND A TRILOBITE. 



DUDLEY . . . . . . . . . 117 



RAISED BEACH. HOPE'S NOSE, TORQUAY . . . . . 117 



ANTICLINE AND SYNCLINE, NEAR BOLTON ABBEY . . . .120 



FOLDED ROCKS, STARE COVE, LULWORTH . . . . .120 



SHAP GRANITE QUARRIES . . . . . . .121 



INTRUSIVE ROCKS. CORNWALL. . . . . . .121 



JOINTED SANDSTONE. BRIMHAM ROCKS . . . . .128 



WIDENED JOINTS IN LIMESTONE. GRANGE-OVER-SANDS . . .129 



MODEL OF PART OF SKYE . . . . . . .129 



CAM LONG DOWN, A "NAB" OR OUTLIER OF THE COTSWOLDS . .168 



ESCARPMENT OF OTATARI LIMESTONE, OAMARU, NEW ZEALAND . .168 



RELIEF MAP OF THE WEALD . . . . . . .169 



NANT FFRANCON. TOPOGRAPHY APPROACHING MATURITY . . .178 



HARDRAW SCAR, NEAR HAWES. IMMATURE TOPOGRAPHY . . .178 



Box HILL, SURREY. THE FLAT-TOPPED NORTH DOWNS . . . 179 



ISSUE OF A LIMESTONE SPRING. CRUMMACK BECK HEAD . . . 179 



A DRY LIMESTONE VALLEY. GORDALE BECK, YORKSHIRE . . .190 



LANDSLIP, NEAR CROMER . . . . . .190 



HEAD OF A TRILOBITE, SILURIAN . . . . . .191 



A FOSSIL TREE, CARBONIFEROUS ... 191 



FOSSIL SKELETON OF A PLESIOSAUR .... 202 



AN AMMONITE, CRETACEOUS . . . . . -203 



EOCENE GASTROPODS . . . . . . . . 203 



CARBONIFEROUS LIMESTONE RESTING UNCONFORMABLY ON SILURIAN SLATES . 212 



EASDALE TARN: A LAKE DAMMED BY A MORAINE , '. . .212 



