Science in Short ChaptersWilliams, W. Mattieu (William Mattieu)
Science
Science in Short Chapters
Williams, W. Mattieu (William Mattieu)
Science
“The Pass of Kylemore, in which I live, is undoubtedly favorably
situated for reclamation, for there is but little very deep bog, and
there is abundance of limestone. In former ages it must have been an
estuary of the sea, with a river flowing through it, now represented
by a chain of lakes and the small rapid river Dowris. The subsoil is
sand, gravel, and schist rock, with peat of various depths grown upon
it. As by the elevation of the land the sea long ages ago was driven
back, the mossy growth of peat commenced, followed by pine and yew
trees, of which the trunks and roots are abundantly found; but, except
over a space of about 400 acres, every tree that formerly clothed the
hillsides has been cut down or has totally disappeared. The general
result is that we have a pass several miles long, bounded on the north
and south by a chain of rugged mountains of some 1500 or 1800 feet in
height, while the east is blocked up by a picturesque chain running
north and south, and separating the Joyce country from Connemara
proper, the west being open to the Atlantic. The well-known Killery
Bay, or Fiord, would, I doubt not, present an exact resemblance to
Kylemore if the sea, which now flows up to its head, were driven out.
There are miles of similar country in Ireland, waiting only for the
industry of man, where, as here, there exist extensive stretches of
undulating eskers, covered with heather growing on the light clay, with
a basis of gravel or sand.
“A considerable difference exists between the reclamation of the flat
parts, where the bog is pretty deep, and the hillsides, where there is
little or no bog. Yet it is to be remembered that bog is nothing more
than vegetable matter in a state of partial decomposition, and holding
water like a sponge. The first thing is to remove the water by drains,
some of which—that is, the big drain and the secondary drains—must
go right down to the gravel below; but the other drains—called
sheep-drains—need not, and, indeed, must not be cut so deep. The
drains are cut wedge-shape by what are called Scotch tools, which
employ three men—two to cut and one to hook out the sods; and all that
is requisite to form a permanent drain is to replace the wedge-shaped
sod, and ram it down between the walls of the drain, where it
consolidates and forms a tube which will remain open for an indefinite
number of years. We have them here as good as new, made twenty-five
years ago; and at Chat Moss, in Lancashire, they are much older. After
land has been thus drained—but not too much drained, or it will become
dry turf—the surface begins to sink; what was tumid settles down, and
in the course of a few months the land itself becomes depressed on the
surface and much consolidated. Next it is to be dug by spade-labor or
ploughed. We use oxen largely for this purpose, and, strange to say,
the best workers we find to be a cross with the Alderney, the result
being a light, wiry little animal, which goes gayly over the ground,
Public-domain text, read in full here on John Shaqi.
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