LIST OF ILLUSTRATIONS IN THE TEXT. 



PAGE 



Map of Egyptian Oilfield Kegion ' 6 



Diagrammatic section across Egyptian Oilfield . . . . ■ ." . 8 



Geological sketch-map of N.W. Carnarvonshire ..... 13 



Geological map of part of S.W. Carnarvonshire ..... 15 



Sketch-map of Lodmundarfjord District ...... 98 



Animal remains in Dunliath Ferruginous Limestone, N.W. Scotland . 103 



Two polyparia of solitary Eugosa ....... 110 



Diagram arrangement of outcrops of septa on surface of polyparium . Ill 



Diagram of calice of Hadrophyllum pauciradiatum .... 113 



Sections of Lophophyllum proliferum ....... 114 



Symbols of sub-rangs and rangs (classification of Igneous Eocks) . 119 



Diagram of disturbed gravels .....'... 159 



Diagram summarizing views of Wachsmuth & Springer on crinoid base. . 206 



Schematic figure of ventral valve of Poikilosakos petaloides . . 214 



Dithyrocaris tricomis and D. testudinea, Scouler .... 271 



Sketch-map and section along railway, Arkleston, Paisley . . . 274 



Eock-section of Cumbraite ......... 307 



Peristomial structures of Plesiechinus ornatus ..... 344 



Schematic restoration of attachment of lantern muscles in Plesiechinus . 347 



Eock-sections, Tholeiite ......... 351 



Eock-section, Olivine-tholeiite ........ 353 



Eibs of Diplodocus in position ........ 360 



Posterior aspect of pelvis and hind-limb of Diplodocus . . . 361 



Hind-limb of Diplodocus ......... 362 



Two views left femur of Diplodocus . . . . . . . 362 



Fore-limb and humerus of Diplodocus ...... 368 



Diagram showing wrong articulation of limb bones and working of 



humerus of Diplodocus (ground-plan) . . . ... . 369 



Mesodon macropterus (Agassiz) ........ 386 



Geological section at the Front ........ 432 



Polymorphites, last and adult sutures ....... 443 



Development of Polymorphites jupiter ....... 444 



Sutural development of P. jupiter . . . . . . . 445 



Sutural development of Cymbites globosus . . . . . . 447 



Sketch-map of Folly Farm, Presteign 482 



Vertical section of upper part of borehole, Folly Farm . . . 491 

 Eestored skeleton of Ichthyosaurus, Lower Lias, Lyme Eegis, with spiral 



coprolite (a) beneath (after Owen) . . . . . . . 541 



Composition of sub-Cretaceous surface of East Kent .... 544 



Isopachyte System, Wealden, East Kent 547 



Section across East Kent from Deal to Ellinge 548 



