VIII

This winter I have had two letters asking me how best to study the mosses and lichens, and I answered, “Begin now.” Winter, when the leaves are off, the ground bare, the birds and flowers gone, and all is reduced to singleness and simplicity—winter is the time to observe the shapes, colors, varieties, and growth of the lichens. Not that every lover of nature needs to know the long Latin names (and many of these lesser plants have no other names), but that every lover of the out-of-doors should notice them—the part they play in the color of things, the place they hold in the scheme of things, their exquisite shapes and strange habits.