72 
Journal of Agricultural Research 
Vol. VIII, No. 3 
Table IV.— Calcium compounds in soils stated as calcium oxid —Continued 
class vn 
Soil. 
Crosby silty clay loam: 
Soil o-8 in.. 
Subsoil 8-12 in. 
Lower subsoil 12-36 in 
Cherokee silt loam: 
Soil 0-6 in. 
Subsurface 6-16 in_ 
Subsoil 16-28 in. 
Lower subsoil 28-40 in 
Total 
CaO.- 
CaO as 
CaCOa. 
CaO as 
CaSOi. 
CaO as 
easily 
decom¬ 
posable 
silicate. 
CaO as 
diffi¬ 
cultly 
decom¬ 
posable 
silicate. 
CaO 
with 
humus. 
O. 98 
0.17 
Trace... 
O. 09 
O. 6l 
O. II 
. 80 
. 19 
. 01 
. 06 
• 54 
6. 15 
5*51 
. 01 
•°5 
.58 
. 60 
.07 
Trace... 
. 02 
.49 
. 02 
.48 
.07 
. 01 
.40 
• 55 
.07 
. 02 
. 11 
. 26 
.09 
• 7 1 
.04 
. 02 
• 
.48 
CLASS VIII 
Vernon very fine sandy loam:. 
Soil 0-15 in. 
0. 61 
0.14 
0. 01 
0.03 
0. 41 
0.02 
Subsoil 15-36 in. 
•59 
. 08 
Trace... 
•03 
•30 
. 18 
CLASS IX 
Oktibbeha clay: 
Soil 0-4 in. 
Subsoil 4-36 in 
0. 65 
0. 40 
Trace... 
0.05 
0. 20 . 
•43 
. 06 
.04 
•33 • 
class x 
Ritzville silt loam: 
Soil 0-12 in. 
Subsoil 12-36 in. 
Lower subsoil 36-72 in 
3 - 05 
0. 06 
Trace... 
0.11 
2. 58 
0.30 
5-37 
2. 50 
.. .do_ 
•54 
2. 33 
5-44 
2. 72 
.. .do_ 
.38 
2. 34 
class xi 
Iredell clay: 
Soil 0-4 in. 
Subsoil 4-30 in. 
4-43 
4. 64 
0.10 
. 06 
Trace... 
...do_ 
0.07 
. 11 
4. 26 
4*34 
0.13 
CLASS XII 
Pheba fine sandy loam: 
Soil 0-0 in. 
O. 27 
•37 
Trace. 
. 01 
0. 02 
. 02 
0. 25 
•34 
Subsoil 9—36 in. 
