The elastic birch, with long and slender limbs, avoiding horizontal positions and aiming at the zenith, flexible to the last degree, moves in the wind with a grace and elasticity which has no parallel.
The American aspen has a shivering leaf upon a rigid branch. It stands quite stiff and motionless in bough, while its leaves are quivering and shivering in the most industrious manner. Right over against the east door of the
Twin Mountain House, New Hampshire, at a little distance, is a group of aspens, which are my perpetual delight. They are my wind-meters, or, rather, zephyr measurers. On a hot noon, when no air seems stirring, and the trees about them doze and slumber, like good men at church, these twinklers, like roguish boys, are dancing in an imaginary breeze, and playing with themselves, without a particle of wind, so far as I can perceive. Now a shiver runs over them from head to foot; then the topmost leaves shake and swirl, while the bottom rests. Gradually the motion dies away all over, and the frolic ends. No, a single leaf begins to wag; it goes on in single blessedness, with accelerated pace, up and down, round and round, until, for the life of me, I cannot help bursting into a fit of laughter at this solitary dance.
At times, in certain moods, one cannot help thinking that the aspen is striving to communicate something. It seems so sigh and pant. It supplicates as one that suffers. Then, changing suddenly, it coaxes and winks and blinks at you as if it was only in fun. It will stand perfectly still a minute as if looking to see what you will do, and then a laughing ripple runs all over it. It frolics with the same tireless grace as a kitten. Indeed, it is a kind of compound kitten-tree, each particular leaf a kitten, all frolicking together; though there is not one of them, if the rest won’t play, that is not ready, kitten-like, as it were, to chase its own tail.
Why have landscape gardeners done so little with birches and aspens? Maples, oaks, ashes, and evergreens are well; but in what other direction shall we look for such grace in form, such susceptibility to aerial influences, and such exquisite motion both of branch and leaf, as we find in the aspen and birch? The birches grow rapidly, are extremely hardy, and will flourish upon poor soil, though loving a generous soil better. In ten years, with birch and aspen, one may rejoice in a thick grove. If the yellow locust be added to these, and the silver maple, one who plants at sixty may hope to see high over his head a respectable young
forest, dense enough for shade and high enough to begin to comfort the imagination.
Long live the aspen and the birch! Only the young have just grounds for prejudice; but even boys soon outgrow the birch, and watch its sinewy motion without a thought of moving too, in shivering accord.