[Illustration: Acorns of the English oak]
These oak notes are not intended to be complete, but only to suggest some points for investigation and appreciation to my fellows in the brotherhood. I have never walked between Trenton and New York, and therefore never made the desired acquaintance with the scrub-oaks along the way. Nor have I dipped as fully into the oak treasures of the Arnold Arboretum as I want to some day. But my camera is yet available and the trees are waiting; the tree love is growing and the tree friends are inviting, and together we will add to the oak knowledge and to that thankfulness for God and life and love and friends that the trees do most constantly cause to flourish.
In popular estimation, the pines seem to belong to the North, not quite so exclusively as do the palms to the South. The ragged, picturesque old pines, spruces and hemlocks of our remembrance carry with them the thought of great endurance, long life and snowy forests. We think of them, too, as belonging to the mountains, not to the plains; as clothing steep slopes with their varied deep greens rather than as standing against the sky-line of the sea. Yet I venture to think that the most of us in the East see oftenest the pines peculiar to the lowlands, as we flit from city to city over the steel highways of travel, and have most to do, in an economical sense, with a pine that does not come north of the Carolinas--the yellow pine which furnishes our familiar house-flooring.
The pine family, as we discuss it, is not all pines, in exactitude--it includes many diverse trees that the botanist describes as conifers. These cone-bearing trees are nearly all evergreens--that is, the foliage persists the year round, instead of being deciduous, as the leaf-dropping maples, oaks, birches, and the like are scientifically designated. Historically the pines are of hoary age, for they are closely related to the growths that furnished the geologic coal measures stored up in the foundations of the earth for our use now. Economically, too, all the pine family together is of vast importance--"the most important order of forest trees in the economy of civilized man," says Dr. Fernow; for, as he adds, the cone-bearing trees "have furnished the bulk of the material of which our civilization is built." As usual, civilization has destroyed ruthlessly, thoughtlessly, almost viciously, in using this material; wherefore the devastation of the forests, moving them back from us farther and farther until in many regions they are but a thin fringe, has left most of us totally unfamiliar with these trees, of the utmost beauty as well as of the greatest value.