Chapter II: Appendix

A Brief Account of the Principal Varieties of
Volcanic Rocks 259-265

Index 268

ILLUSTRATIONS.

Fig. 1. Eruption of Vesuvius, 1872-73 _Frontispiece_

" 2. Cotopaxi _Page_ 16

" 3. Volcanic Cone of Orizaba " 21

Map of the World, showing Active and
Extinct Volcanoes " 23

" 4. Teneriffe, seen from the Ocean " 31

" 5. View of the Summit of Teneriffe " 35

" 6. Probable Aspect of Vesuvius at Beginning
of Christian Era " 43

" 7. View of Vesuvius before 1767 " 50

" 8. Map of District bordering Bay of Naples " 52

" 9. View of Vesuvius in 1872 " 53

" 10. Ideal Section through Etna " 63

" 11. Map of the Lipari Islands " 70

" 12. The Island of Vulcano in Eruption " 71

" 13. Ideal Section through Gulf of Santorin " 76

" 14. Bird's-eye View of Gulf of Santorin " 79

" 15. Ground Plan of Rocca Monfina " 80

" 16. Geological Section of Tiber Valley at
Rome " 88

" 17. Generalised Section Through the Vale
of Clermont " 93

Fig. 18. View of Puy de Dome and Neighbouring
Volcanoes _Page_ 95

" 19. Mont Demise, seen from the S.E. " 103

" 20. Sketch Map of Rhenish Area in the
Miocene Epoch " 114

" 21. The Volcanic Range of the Siebengebirge " 117

" 22. Section of Extinct Crater of the Roderberg " 120

" 23. Plan and Section of the Laacher See " 122

" 24. Extinct Craters in the Jaulan " 130

" 25. Mount Shasta " 139

" 26. Forms of Volcanic Tuff-Cones, Auckland " 148

" 27. "The White Rocks," Portrush, Co.
Antrim " 157

" 28. Section across the Volcanic Plateau
of Antrim " 159

" 29. Section at Templepatrick " 161

" 30. Cliff above the Giant's Causeway " 163

" 31. The Giant's Causeway, Co. Antrim " 165

" 32. "The Chimneys," North Coast of
Antrim " 166

" 33. Section at Alt na Searmoin, Mull " 175

" 34. View of the Scuir of Eigg from the East " 181

Map of Volcanic Band of the Moluccas " 200

" 35. Map of the Krakatoa Group of Islands " 203

" 36. Section from Verlaten Island through
Krakatoa " 204

Fig. 37. Isoseismals of the Charleston Earthquake _Page_ 223

" 38. Photograph of the Moon's Surface " 241

" 39. Portion of the Moon's Surface " 243

_PLATES._

I. & II. Magnified Sections of Vesuvian Lavas.

III. & IV. Magnified Sections of Volcanic Rocks.

Volcanoes: Past and Present.