xii ILLUSTRATIONS 
FIG. PAGE 
20. Glacier of the Bliimlis Alp. (After Reclus) . . 228 
21. Cotopaxi. (After Judd) . : : : ; a 
22. Lava Stream. (After Judd) . , 239 
23. Stromboli, viewed from the north-west, April ‘1874. 
(After Judd) . ; ‘ ‘ ‘ ‘ : . 242 
24, Upper Valley of St. Gotthard . ; 257 
25. Section of a river valley. The dotted ie ahawe a 
slope or talus of debris . ‘ 260 
26. Valley of the Rhone, with the fier of Balionslie 
showing a talus of debris ; : : ; > en 
27. Section across a valley. .A, present river valley; B, 
old river terrace. ; . . . 262 
28. Diagram of an Alpine valley, saetae a river cone. 
_Frontview . ; : ‘ . 263 
29. Diagram of an Alpine valley, showing a river cone. 
Lateral view . ; : ‘ : : . 265 
30. Map of the Valais near Sion } ; , ; . 266 
31. View in the Rhone Valley, showing a lateralcone . 267 
82. Do. showing the slope of a 
river cone : ; : : : ; . 268 
33. Shore of the Lake of Gao near Vevey . 3 . 269 
34. View in the district of the Broads, Norfolk : « ax 
35. Delta of the Po . ; : : : ; : . 2738 
36. Do. Mississippi , , ; : ‘ . 274 
37. Map of the Lake District . : ; : 3 . 281 
38. Section of the Weald of Kent. a, a, Upper Creta- 
ceous strata, chiefly Chalk, forming the North and 
South Downs; 0, 0, Escarpment of Lower Green- 
sand, with a valley between it and the Chalk; 
c, ¢, Weald Clay, forming plains; d, Hills formed 
of Hastings Sand and Clay. The Chalk, etc., once 
spread across the country, as shown in the dotted 
lines ; : : - . 283 
39. Map of the Weald of ak : ‘ . i . 284 
