Figure 29
Splints Arranged in various ways to sheath the bottom of a canoe: 1, Micmac, Malecite; 2, Central Cree, Têtes de Boule, etc.; 3, Montagnais; 4, Algonkin, Ojibway, etc.
If the sheathing was lapped, the overlap was always slight. In some old canoes a small space was left between the edges of the sheathing, particularly in the topsides. In some northwestern bark canoes there was no sheathing; these used a batten system somewhat like that in the Eskimo kayak, except that in the bark canoes the battens were not lashed to the ribs, being held in place only by pressure. These kayak-like bark canoes had a bottom framework formed with chine members; some had a rigid bottom frame of this type, while others had bottom frames secured only by rib pressure. The purpose of the sheathing, it should be noted, was to protect the bark cover from abrasion from the inside, to prevent the ribs from bulging the bark, and to back up the bark so as to resist impacts; but in no case, even when battens were employed, as in the Northwest, did the sheathing add to the longitudinal strength of the bark canoe. The principle of the stressed rib and clamped sheathing, which is the most marked characteristic in the construction of the North American Indian bark canoe, is fundamentally different from that used in the construction of the Eskimos' skin craft.
A wide variety of framing methods are exhibited in the construction of the ends, or stems, of bark canoes. In the temporary types of the East, the bark was trimmed to a straight, slightly "ram" form and secured by sewing over two battens, one outboard on each side. Birch-bark canoes of the East usually had an inside stem-piece bent by the lamination method to the desired profile, the heel being left unsplit; as usual, the laminations were spirally wrapped, often with basswood-bark thongs. The stem-piece was then placed between the bark of the sides, and the bark and wood were lashed together with an over-and-over stitch. Sometimes variations of the short-and-long form of stitch were used here, and some builders also placed a halved-root batten over the ends of the bark before lashing to form a stem-band as protection to the seam. In some canoes the end lashing passed through holes drilled in the stem-pieces, often with the turns alternating in some regular manner through and around the stem-piece.
The stem-pieces were generally very light, and in some canoes the head was notched and sharply bent down and inboard, so that it could be secured to the ends of the gunwales. Some tribal types had no inner stem-piece, and the stem profiles were strengthened merely by the use of two split-root or halved-sapling battens, one on each side, outside the bark and under the sewing.
Figure 30
End Details, Including Construction of Stem-Pieces and fitting of bark over them, ending of gunwale caps at stem heads, and the headboard, with its location. Lamination of the stem pieces shows fewer laminae than is common. (Sketches by Adney.)