first, because the soil is warmer by night than the air. (He relies upon
other facts than his own for this assertion.) 2nd. Because he found more
moisture in the soil when covered over night than when left bare. 3d.
Because when hoed, thereby disturbing capillary action, he found less
moisture than when unhoed, in surface soil. Finally, he concludes the
position proven, for, when he shut off the upward flow of water to the
surface of the soil, he found not only less moisture above the cut off
or in the surface soil than where no disturbance of capillary action
had been made, but actually less moisture in the surface soil than the
night before. Strongly corroborating this conclusion is the fact that
all of the tests conspire to show that the gain of moisture in the
surface of the soil by night is traceable to one source, and only one
source.

[Illustration: AMERICAN ASH.--See Page 25.]

The facts of this bulletin accord with the previous ones in showing that
mulching and frequent shallow tillage economize the moisture of the soil
and add new proof of this to those already given.




SPECIALTY IN FARMING.


This subject in my estimation should begin to attract attention,
especially among the large land owners and farmers of the West. If we
study the whole catalogue of money-making enterprises and money-making
men, we find that the greatest success has been attained where there has