In addition to the large structures of wells and traps,
such as have been represented, we need small and cheap
arrangements, by which we may satisfy ourselves and our
questioning friends and neighbors, that every part of our
buried treasure, is steadily earning its usury. It is really
gratifying to be able to allow those who " don't see how
water can get into the tiles," and who inquire so distrust^
fully whether you " don't think that land on the hill would
be just as dry without the drains," to satisfy themselves, by
actually seeing, that there is a liberal flow through all the
pipes, even in the now dry soil. And then, again,

** The best laid schemes o* mice an' men
Gang aft agley.**

and drains will get obstructed, by one or other of the
various means suggested in another place. It is then con-
venient to be able to ascertain with certainty, and at once,
the locality of the difficulty, and this may be done by
means of peep-hcrfes.
These may be formed of cast iron, or of well-burnt
clay, or what is called stone-ware, of 4, 6, or 10 inches
internal diameter, and long enough to reach from the
bottom of the drain to the surface, or a little above it.
The drain or drains, coming into this little well, should
enter a few inches above the pipe which carries off the
water, so that the incoming stream may be plainly seen.
A strong cover should be fitted to the top, and secured so
as not to cause injury to cattle at work or feeding on the
land. The arrangement will be at once seen by a sketch
given on the following page.
188



FARM DRAINAGE.
