io8 Journal of A gricultural Research voi. * 6 , no. 3 
The Bates very fine sandy loam adsorbed more than the Neosho silt 
loam, but less than the other two. This soil had the highest hydrogen- 
ion concentration of the four, but it contains a comparatively small 
amount of clay. The main fact shown by this experiment is that the 
amount of clay is a factor of greater moment in calcium adsorption than 
is the initial intensity of acidity. 
Table XIX .—Adsorption of calcium from Ca(OH) 2 by four soils 
Calcium added. 
NEOSHO SILT LOAM. 
OSWEGO SILT LOAM. 
Calcium in 
extract. 
Calcium 
adsorbed. 
Extract. 
Calcium in 
extract. 
Calcium 
adsorbed. 
Extract. 
Mgm. 
Mgm. 
Mgm. 
Pb> 
Mgm. 
Mgm. 
Ph- 
18.7.. 
3-4 
I 5 * 3 
9-43 
3-4 
15.3 
8 - 59 
21.8 ... 
4.3 
17 -S 
10. 04 
, 3-9 
17.9 
8. 52 
25 - 2 . • ... • 
5-6 
19. 6 
io- 55 
3-6 
21. 6 
8.52 
29.I. 
7 - 1 
22. 0 
10. 79 
4.0 
2 5 - 1 
9. l6 
35 * 4 . .... ....... 
xo. 4 
25. 0 
11. 26 
. 4-8 
30. 6 
9. 60 
4 i .5 .. 
14. 2 
27.3 
11. 50 
6. 1 
35*4 
lO. 58 
54.5............ . 
21. 2 
33-3 
n.73 
5 
44. 0 
10. 82 
69.1. ... 
31*0 
38.1 
11.90 
17.2 
5 1 - 9 
11.43 
BATES VERY FINE SANDY LOAM. 
BATES LOAM. 
18.7 . 
21.8 . 
3-8 
14. 9 
8. 52 
3-8 
14. 9 
8. 28 
2 c 2 
4 . O 
17.8 
8. 5 5 
3*9 
17-9 
8. 52 
* O ' * . 
20 T 
4-3 
20. 9 
8. 66 
4.3 
20. 9 
8.52 
. . .... ; • • - • 
4.7 
24. 4 
9.67 
4.6 
24. 5 
9-30 
............ 
AT . C . 
6. 4 
29. 0 
10. 41 
5 - 3 
30.1 
9. 91 
T *> * ...." 
ca e 
9.0 
32.5 
10. 95 
6. 6. 
34*9 
10.24 
.. 
69.1.. . , . 
13.8 
49 . 7 
11.36 
9-1 
, 45 - 4 
10.85 
23-9 
45-2 
11-73 
14. 5 
54 - 6 
10.95 
