At the end is fastened in a Parrallel direction to the Canoe a long log of wood simply; or some have it Shaped in the form of a small Boat, but this is not common; this lays in the Water and Balances the Boat.

Those that are for sailing have Outriggers only on the other side abreast of the Mast; these serves to fasten the Shrouds to, and are of use in Trimming the Boat when it blows fresh; the sailing proes have some one and some 2 masts; the sails are of Matting and are made narrow at the head and Square at the foot, something like a Shoulder of Mutton Sail, such as are generally used in Man-of-War Barges, etc.
I have mentioned above that the single Canoes have Outriggers, for those that go double--that is 2 together, which is very common--have no need of any; and it is done in this manner: 2 Canoes are placed in a parrallel direction to each other, about 3 or 4 feet asunder, securing them together by small Logs of Wood laid across and lashed to each of their gunwales; thus the one boat supports the other, and are not in the least danger of upsetting, and I believe it is in this manner that all their large Proes are used, some of which will carry a great number of Men, by means of a Platform made of Bamboo or other light wood and the whole length of the Proes and considerably broader, but I never saw but one fitted in this manner upon the whole Island.

Upon the Forepart of all these large double Proes was placed an Oblong Platform about ten or twelve feet in length, and six or eight in Breadth, and supported about 4 feet above the Gunwale by stout Carved Pillars.

The use of these Platforms, as we were told, are for the Club Men to stand and fight upon in time of Battle, for the large Canoes, from what I could learn, are built most, if not wholly, for war, and their method of fighting is to Graple one another and fight it out with Clubs, spears, and stones.

I never saw but one of these sort of Canoes in the water, the rest was all hauled ashore and seemed to be going to decay, neither were there very many of them upon the Island.* (* The war canoes of Tahiti exist no longer.