The fact that all soils are exhaustible establishes the necessity for

agricultural education, by whose aid the processes of impoverishment may
be limited in number and diminished in force; and the realization of
this fact by the public generally is the only justification necessary
for those who advocate the immediate application of means to the
proposed end
The fact that all soils are exhaustible establishes the necessity for
agricultural education, by whose aid the processes of impoverishment may
be limited in number and diminished in force; and the realization of
this fact by the public generally is the only justification necessary
for those who advocate the immediate application of means to the
proposed end.