Its bark is the most serviceable of all the products of the wilderness. In Russia, they say, it is used in tanning, and gives its subtle, sacerdotal fragrance to Russia leather. But here, in the woods, it serves more primitive ends. It can be peeled off in a huge roll from some giant tree and fashioned into a swift canoe to carry man over the waters. It can be cut into square sheets to roof his shanty in the forest. It is the paper on which he writes his woodland despatches, and the flexible material which he bends into drinking-cups of silver lined with gold. A thin strip of it wrapped around the end of a candle and fastened in a cleft stick makes a practicable chandelier. A basket for berries, a horn to call the lovelorn moose through the autumnal woods, a canvas on which to draw the outline of great and memorable fish--all these and many other indispensable luxuries are stored up for the skilful woodsman in the birch bark.