than equals its height, is about as rigid as the rocks on which it
grows. The slender lash-like sprays of the Dwarf Pine stream out in
wavering ripples, but the tallest and slenderest are far too unyielding
to wave even in the heaviest gales. They only shake in quick, short
vibrations. The Hemlock Spruce, however, and the Mountain Pine, and some
of the tallest thickets of the Two-leaved species, bow in storms with
considerable scope and gracefulness. But it is only in the lower and
middle zones that the meeting of winds and woods is to be seen in all
its grandeur.

One of the most beautiful and exhilarating storms I ever enjoyed in the
Sierra occurred in December, 1874, when I happened to be exploring one
of the tributary valleys of the Yuba River. The sky and the ground and
the trees had been thoroughly rain-washed and were dry again. The day
was intensely pure: one of those incomparable bits of California winter,
warm and balmy and full of white sparkling sunshine, redolent of all the
purest influences of the spring, and at the same time enlivened with one
of the most bracing wind-storms conceivable. Instead of camping out, as
I usually do, I then chanced to be stopping at the house of a friend.
But when the storm began to sound, I lost no time in pushing out into
the woods to enjoy it. For on such occasions Nature has always something
rare to show us, and the danger to life and limb is hardly greater than
one would experience crouching deprecatingly beneath a roof.

It was still early morning when I found myself fairly adrift. Delicious
sunshine came pouring over the hills, lighting the tops of the pines,
and setting free a steam of summery fragrance that contrasted strangely
with the wild tones of the storm. The air was mottled with pine-tassels
and bright green plumes, that went flashing past in the sunlight like
birds pursued. But there was not the slightest dustiness; nothing less
pure than leaves, and ripe pollen, and flecks of withered bracken and
moss. I heard trees falling for hours at the rate of one every two or
three minutes: some uprooted, partly on account of the loose,
water-soaked condition of the ground; others broken straight across,
where some weakness caused by fire had determined the spot. The gestures
of the various trees made a delightful study. Young Sugar Pines, light
and feathery as squirrel-tails, were bowing almost to the ground; while
the grand old patriarchs, whose massive boles had been