Plate XV 



Fig-. 26. Evaporation rates at the foot (8), near the top of the north (10) and of 

 the south (12) facing' slopes of the ravine, in the oak uplands (10), and in the open 

 uplands (17). Stations 8, 10, 12, lb, and 1". 



Fig. 27. Evaporation rates at the foot (13), middle (14), and top (15) of the 

 wash or gully slope. Stations 13, 14, and 15. 



