The Beothuk keel piece may have sometimes been nearly round in section like the keel of the Malecite moosehide canoe (p. 214). The two garboard strakes of the sheathing may have been shaped in cross section to fair the bark cover from the thin sheathing above to the thick keel and at the same time allow the ribs to hold the garboards in place. They could, in fact, be easily made, since a radial split of a small tree would produce clapboard-like cross sections. This construction would perhaps comply better with Cartwright's description of the keel than that shown in the plan on page 97. The sheer of the Beothuk canoe is an exaggerated form of the gunwale shape of the Micmac rough-water canoe but this, of course, is no real indication of any relationship between the two. Indeed, the probable scarfing of the gunwales of the Beothuk canoe might be taken as evidence against such a theory. On the other hand, the elm-bark and other temporary canoes of the Malecite and Iroquois had crudely scarfed gunwale members, as did some northwestern bark canoes. Most of the building techniques employed by Indians throughout North America are illustrated by these eastern bark canoes, yet marked variation in construction details existed to the westward, as will be seen. _Chapter Five_ CENTRAL CANADA The Indians inhabiting central Canada were expert builders of birch-bark canoes and produced many distinctive types. The area includes not only what are now the Provinces of Quebec (including Labrador), Ontario, Manitoba, and the eastern part of Saskatchewan, but also the neighboring northern portions of Michigan, Wisconsin and Minnesota in the United States. The migrations of tribal groups within this large area in historical times, as well as the influence of a long-established fur trade, have produced many hybrid forms of bark canoes and, in at least a few instances, the transfer of a canoe model from one tribal group to another. It is this that makes it necessary to examine this area as a single geographic unit, although a wide variation of tribal forms of bark canoes existed within its confines.