Jan. is, 1917 
Calcium Compounds in Soils 
59 
tered: soil and subsoil; soil, subsoil, and deep subsoil; or soil, subsurface 
subsoil, and deep subsoil. 
' The character of the samples, location, and type name are given in 
Table I, in which the soils are classified according to the color of soil and 
subsoil. 
TablF I .—Classification and characteristics of soils and subsoils according to their color 
CLASS I.—BROWN SOILS WITH LIGHT-BROWN TO YELLOWISH BROWN SUBSOILS 
No. 
Depth. 
Type. 
Location. 
1 (soil). 
a (subsoil). 
Inches . 
0-18 
18-40 
0-10 
10-36 
0- 9 
9-36 
0- 8 
8-21 
21-36 
Holland sandy loam. 
.do.. 
jSan Diego County, Cal. 
|New London County, Conn. 
^Freehold Area, N. J. 
| Do. 
3 (soil). '. 
4 (subsoil^. 
Gloucester fine sandy loam.... 
.do. 
S (soil). 
Sassafras loam. 
6 (subsoil).. 
.do. 
7 (soil). 
Collington loam. 
8 (subsoil). 
.do. 
9 (lower subsoil). 
.do... 
CLASS n.—LIGHT-BROWN SOILS WITH YELLOWISH BROWN, MOTTLED, COMPACTED SUBSOILS 
TO (soil) . 
0- 8 
Spencer silt loam.. 
11 (subsurface). 
8-24 
24-36 
36-72 
O—12 
.. ?. .do. 
No. Central Recon., Wis. 
la (subsoil). 
.do.. 
13 (lower subsoil). 
14 (soil!. 
Helmer silt loam... 
15 (subsoil) . 
I2-3O 
30-36 
0- 6 
.do. 
Latah County, Idaho. 
16 (lower subsoil). 
17 (soil). 
Helmer loam. 
Montana forested region. 
18 (subsoil). 
6-20 
.do.... 
CLASS m.—RED OR REDDISH SOILS WITH RED SUBSOILS 
19 (soil). 
0- 5 
Susquehanna clay. 
jMontgomery County, Ala. 
20 (subsoil)... 
5—36 
.do. 
21 (soil).. 
0-12 
Cecil day loam... 
>Troupe County, Ga. 
22 (subsoil). 
12—36 
.do. 
23 (soil). 
0- 6 
Colts-neck loam. 
jFreehold Area, N. J. 
24 (subsoil)... 
6-36 
.do. 
25 (soil)... 
0- 4 
Mecklenburg day loam. 
| 
26 (subsoil). 
4-24 
.do.... 
{Mecklenburg County, N. C. 
27 (lower subsoil). 
24-36 
.do. 
CLASS IV.—DARK-BROWN SOILS WITH BROWN TO YELLOWISH BROWN SUBSOILS AND A HEAVY CLAY 
HORIZON IN SUBSOIL 
(soil). 
0- 7 
7-18 
18-36 
0- 8 
Grundy silt loam. i| 
(subsoil). 
(lower subsoil). 
.do.J 
(soil). 
.do.1 
(subsoil)..... 
8-36 
0- 7 
7-18 
18-36 
.do...1 
(soil).. 
Charitan silt loam. 1 
(subsoil). 
.do. 
(lower subsoil). 
.do. 
Grundy County, Mo. 
CLASS V.—DARK-BROWN TO BLACK SOILS WITH YELLOW-BROWN TO GRAYISH SUBSOILS 
36 (soil)... -... 
0-20 
Marshall silt loam. 
j Pottawattamie County, Iowa. 
37 (subsoil). 
20—36 
.do. 
38 (soil).. 
0-17 
Barnes silty clay loam. 
{■Barnes County, N. Dak. 
39 (subsoil). 
17-48 
.do... 
