LIST OF WOODCUTS. 



PAGE 



Victoria Cave, Settle, Yorkshire 1 1 



Eurypterus {Arihropleura ?) mammattis ; Arthropletira {Euphoberia ?) ferox 105 



Arthropleura armata, Coal-measures, Saarbruck , 107 



Arihropleura ferox no 



Euphoberia ? major, from the Coal-measures, Illinois in 



Halonia punctata ; H. gracilis 151 



Diagram of the Shields of the several Genera of Heterostracous Cephalaspidse 152 



Reversed laminae of Schorlaceous Granite south of Carclaze Mine, Cornwall. 164 



Asterophyton Linckii 216 



Calveria hystrix „ 219 



Pentacrinus asteria 221 



Pentacrinus Wyville-Thomsoni 223 



Diagrams to Illustrate Disturbances in the Earth's Crust 252, 254 



Conularia quadrisulcata. Carboniferous series „ „ 295 



Outline lateral view of the shield of Holaspis sericeus 331 



Geological Problems 332, 333 



Sketch of the Little Orme from the Shore 342 



Mass of Smooth Limestone from the Shore at the Little Orme 343 



Large Mass of Breccia from the Little Orme 343 



The Drei Zinnen 366 



The Aiguilles of the Schlem 368 



Figures to Illustrate the occurrence of Haematite in the Carboniferous Lime- 

 stone Beds near Cookstown, Co. Tyrone 401 



Pentacrinus priscus from the Lower Devonian, near Torquay 426 



Vertical Section of Bone of Ganorhynchus Woodwardii, Traquair. Magnified 



48 diameters „ „ 554 



Lingula ovalis, Sby., Kimmeridge Clay, Boulogne-sur-mer 574 



Section of Cliff near Boulogne 574 



