There are various local difficulties that must be considered in addition
to soil and climate; the most important is the presence of vast numbers
of goats throughout the mountains, that would utterly destroy certain
varieties of young plants. There can be no doubt that the climate and
soil are specially adapted for the introduction of the common larch,
which would grow quickly into value for the much-needed poles for
rafters and beams for the flat-topped roofs; but this tree is eagerly
devoured by sheep, goats, and cattle, and would be destroyed in its
first stage unless protected by fencing. It will be a safe rule to adopt
the native trees as a guide to future extension, as the varieties of
such classes as are indigenous will assuredly succeed. The two existing
pines are shunned by goats even when in their earliest growth, and they
are so ineradicable that were the forests spared and allowed to remain
without artificial planting, in ten years there would be masses of young
trees too thick for the success of timber. The rain, when heavy, washes
the fallen cones from the highest points, and as they are carried by the
surface water down the steep inclines they hitch among the rocks and
take root in every favourable locality. Here we have two native trees
that will plant themselves and flourish without expense, invulnerable to
the attacks of goats, and only demanding rest and time.
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