Plate X 



Fig-. 16. Evaporation rates in an embryonic ravine (1), in a portion of ravine 

 with lateral cutting delayed (2), and at the bottom of the most mesophytic portion 

 of ravine (3). stations 1, 2, and 3. 



Fie. n. Evaporation rates at the foot (3), middle (4), and top (5) of the north- 

 west-facing slope of the most mesophytic portion of the ravine. Stations 3, 4, and 5. 



