FOREST AREAS AND SOIL WATER 
141 
Timbered site: Station II (top of slope); station Ib (middle of 
south slope) ; station III (middle of north slope) ; station IX (middle 
of east slope). 
Brushy site: Station V (top of slope); station IV (middle of south 
slope) ; station VI (middle of north slope). 
Open site: Station X (top of slope); station XI (middle of south 
slope). 
The stations at the top of the slopes especially were located 
with respect to uniformity of exposure to the action of the wind 
from all directions, so that the only mitigating influence in this re- 
gard would be that oflfered by the vegetation. 
Evaporation readings were taken morning and evening of 
alternate days, at 6 A.M. and 6 P.M. For these determinations 
the standardized cylindrical form of the Livingston atmometer 
was used. 
Results oe Evaporation Studies 
These results have been brought together in tables B and C 
and in the form of a chart, figure 28. 
Fig. 28. Evaporation at top of timbered, brushy and open slopes. Readings for 
period 6 A.M. to 6 P. M. Fine dotted lines indicate points where readings were 
affecied by precipitation. 
In consulting table B it is found that the average daily rates 
of evaporation for the period of the tests for the stations at the 
top of the slopes are as follows: 11.24 c.c. in the timber; 15.83 
c.c. on the brushy site; 20.25 c.c. in the open. Again, for the 
stations at the middle of the slope, the average daily rate is 7.12 
c.c. for the timber, 12.87 c.c. for the brush and 18.69 c.c. for the 
