the Lateral
Ranges. 137
" XIII.--Of the Sculpture of Mountains: Secondly, the Central
Peaks. 157
" XIV.--Resulting Forms: First, Aiguilles. 173
" XV.--Resulting Forms: Second, Crests. 195
" XVI.--Resulting Forms: Third, Precipices. 228
" XVII.--Resulting Forms: Fourthly, Banks. 262
" XVIII.--Resulting Forms: Fifthly, Stones. 301
" XIX.--The Mountain Gloom. 317
" XX.--The Mountain Glory. 344

APPENDIX.

I. Modern Grotesque. 385
II. Rock Cleavage. 391
III. Logical Education. 399

LIST OF PLATES TO VOL. IV.

Drawn by Engraved by

Frontispiece.
The Gates of the Hills _J. M. W. Turner_ J. COUSEN

Plate Facing page

18. The Transition from _Ghirlandajo and
Ghirlandajo to Claude Claude_ J. H. LE KEUX 1
19. The Picturesque of _Stanfield and
Windmills Turner_ J. H. LE KEUX 7
20. The Pass of Faido.
1. Simple Topography _The Author_ THE AUTHOR 22
21. The Pass of Faido
2. Turnerian Topography _J. M. W. Turner_ THE AUTHOR 24
22. Turner's Earliest Nottingham _J. M. W. Turner_ T. BOYS 29
23. Turner's Latest Nottingham _J. M. W. Turner_ T. BOYS 30
24. The Towers of Fribourg _The Author_ J. C. ARMYTAGE 32
25. Things in General _The Author_ J. H. LE KEUX 32
26. The Law of Evanescence _The Author_ R. P. CUFF 71
27. The Aspen under Idealization _Turner, etc._ J. COUSEN 76
28. The Aspen Unidealized _The Author_ J. C. ARMYTAGE 77
29. Aiguille Structure _The Author_ J. C. ARMYTAGE 160
30. The Ideal of Aiguilles _The Author, etc._ R. P. CUFF 177
31. The Aiguille Blaitiere _The Author_ J. C. ARMYTAGE 185
32. A