Relation of Xonavailable Water to Hygroscopic Coefficient 111 
Table 30. — Moisture conditions at death of mesquite. 
Depth of section 
Total water 
Free water 
Feet 
{ 
i 
1 "I 
I 
Inches 
1-4 
5-6 
7-9 
10-12 
Per cent 
2.7 
4.0 
5.1 
6.3 
Per cent 
—7.3 
—6.0 
—4.9 
—3.7 
[ 
2 \ 
13-15 
16-18 
19-21 
22-24 
4.5 
4.7 
5.0 
4.9 
—1.1 
—0.9 
—0.6 
—0.7 
3 \ 
i 
1 
25-27 
28-30 
31-33 
34-36 
5.0 
4.8 
5.0 
4.8 
—0.6 
—0.8 
-0.6 
—0.8 
4 \ 
i 
I 
37-39 
40-12 
43-45 
46-48 
4.9 
4.8 
4.7 
5.0 
—0.7 
—0.8 
-0.9 
—0.6 
f 
i 
5 \ 
i 
{ 
49-51 
52-54 
55-57 
58-60 
4.9 
5.0 
5.0 
5.0 
—0.7 
—0.6 
—0 6 
—0.6 
f 
6 j 
i 
I 
61-63 
64-66 
67-69 
70-71 
5.0 
5.0 
5.0 
4.9 
—0.6 
—0.6 
—0.6 
—0.7 
Average ... 
Average ... 
1-12 
13-71 
4.5 
4.9 
— 5.5 
—0.7 
1st 
foot 
2d 
foot 
3d 
foot 
4th 
foot 
5th 
foot 
6th 
foot 
Fig. 36. 
Roots of mes- 
quites. 
Experiment 3. — In this experiment three water-tight cylin- 
ders, each two feet high and one foot in diameter, were used. The 
young plants were transferred from the flowerpots on June 17. 
1911, they being nearly 6 months old. The soil used was H O 
subsoil except for the small amount of Lincoln surface soil from 
the small flowerpots, this having been transferred so as not to dis- 
turb the roots. A large supply of H O subsoil had been brought 
to a content of about 14 per cent of total water and with this 
the cylinders were filled, with tamping, to a height of 18 inches 
