PLOWING 6s 
would plow it, and the land planted in sweet corn. 
And notwithstanding the fact that the summer of IgII 
was the driest and hottest experienced for years, this 
corn made a profitable crop and a better crop than the 
best bottom land on “ Vetchfalfa Farm.” 
By deep plowing, supplemented with the plowing 
under of heavy crops of organic matter the author is 
making his sandy land the best land on his farm. 
Under the direction of the author, experiments of 
deep plowing of stiff clay lands with a disc plow have 
been made for the past three or four years, and aston- 
ishing crop yields have resulted. 
There has recently been invented a disc plow called 
the “Spalding Tuilling Machine” which will plow any 
depth up to twenty-four inches and so plows, mixes 
and pulverizes the soil as not to bring any of the soil 
from the bottom of its furrow to the surface, yet will 
completely turn and cover a sufficient depth the heaviest 
mass of organic matter. The author will begin the 
use of these plows the coming season, believing them 
to be the most valuable tool any one can have upon the 
farm. 
In the first edition of this book, in the chapter on 
plowing, the author said, “ Drain well your soils, plant 
in them crops for green manures that send their roots 
deep down into the soil, then it will only be necessary 
to plow your soils deep enough to well cover the organic 
matter plowed under.” 
This was safe advice and in the use and application 
of which no one could go wrong, but subsequent exten- 
sive experiments have shown the author that not every 
