Chapter V: Land Sculpture 99

I. Erosion 99
A. Processes of erosion 99
Weathering 100
Transportation 101
Corrasion 101
B. Conditions controlling erosion 102
Rate of erosion and declivity 102
Rate of erosion and rock texture 103
Rate of erosion and climate 103
Transportation and comminution 106
Transportation and declivity 108
Transportation and quantity of water 109
Corrasion and transportation 111
Corrasion and declivity 112
Declivity and quantity of water 113
II. Sculpture 115
Sculpture and declivity 115
The law of structure 115
The law of divides 116
Sculpture and climate 117
Bad-lands 120
Equal action and interdependence 123
III. Systems of drainage 124
The stability of drainage lines 124
The instability of drainage lines 125
The stability of divides 138
The instability of divides 139
Consequent and inconsequent drainage 143
The drainage of the Henry Mountains 144

CHAPTER VI. ECONOMIC 151