CARBONATE OF LIME. 131 
of many centuries, it is his privilege to crush and 
grind the rocks of his own farm and put the dust 
over his land. 
Farm Machines for Crushing—In this connection 
it may be remarked that there are now machines 
made that will take the raw rocks that may crop out 
on a man’s own farm and grind them into usable ° 
dust, the machines being mounted on wheels and 
readily portable, so that they can be drawn from one 
farm to another, as need demands. Thus the farmer 
may have a machine come to his own farm and 
grind up for him a pile of limestone of as many hun- 
dred tons as he desires. It will lie in pile unharmed 
by weather till he is ready to put in a field. 
There are many thousands of acres of land in 
Ohio, Tennessee, Kentucky and adjoining states that 
is fairly fertile, is naturally pretty well drained so 
that the expense of drainage will be but slight, and 
that only awaits the coming of lime carbonate to 
make it produce good alfalfa. And the beauty of 
it is that in Tennessee and Kentucky very often the 
limestone is right in the neighborhood, and some- 
times right on the farm where it is needed. 
Summary.—lI realize that I have taken not a little 
time to present this matter. My apology is that the 
subject is fraught with such import. The wealth of 
our land can easily be doubled. Drainage is the 
first step. Use of carbonate of lime is the second 
step, and the third is the addition of humus to the 
soil, the use of phosphorus, in some instances of 
potash, and the sowing of alfalfa. Or, if there is 
