As an additional recommendation, many of these trees grow on the thinnest and most indifferent soils, whether moist or dry; and in cold, bleak, and exposed situations, as well as in warm and sheltered places. We shall enumerate the different kinds as follows:- The Canoe birch, Boleau a Canot, of the French Canadians (B. papyracea), sometimes also called the Paper birch, is, according to Michaux, most common in the forests of the eastern states, north of latitude 43ï¾°, and in the Canadas. There it attains its largest size, sometimes seventy feet in height, and three in diameter. Its branches are slender, flexible, covered with a shining brown bark, dotted with white; and on trees of moderate size, the bark of the trunk is of a brilliant white; it is often used for roofing houses, for the manufacture of baskets, boxes, etc., besides its most important use for canoes, as already mentioned. The leaves, borne on petioles four or five lines long, are of a middling size, oval, unequally denticulated, smooth, and of a dark green color.