The fourth factor was the Indians. They belonged to the Micmac tribe of the great Algonquin family, and probably numbered no more than about four thousand throughout the whole French sphere of influence in what are now the Maritime Provinces. A few hundred braves might have been ready to take the war-path in the wilds of Cape Breton; but sieges were not at all in their line, except when they could hang round the besiegers' inland flanks, on the chance of lifting scalps from careless stragglers or ambushing an occasional small party gone astray. As in Canada, so in Cape Breton, the Indians naturally sided with the French, who disturbed them less and treated them better than the British did. The British, who enjoyed the inestimable advantage of superior sea-power, had more goods to exchange. But in every other respect the French were very much preferred. The handful of French sent out an astonishingly great number of heroic and sympathetic missionaries to the natives. The many British sent out astonishingly few. The Puritan clergy did shamefully little compared with the wonderful Jesuits. Moreover, while the French in general made the Indian feel he was at all events a fellow human being, the average British colonist simply looked on him as so much vermin, to be destroyed together with the obstructive wilds that harboured him. The fifth factor, the navy, brings us into contact with world-wide problems of sea-power which are too far-reaching for discussion here [Footnote: See in this Series The Winning of Canada and The Passing of New France, where they are discussed.] Suffice it to say that, while Louisbourg was an occasional convenience, it had also peculiar dangers for a squadron from the weaker of two hostile navies, as squadrons from France were likely to be. The British could make for a dozen different harbours on the coast. The French could make for only this one. Therefore the British had only to guard against this one stronghold if the French were in superior force; they could the more easily blockade it if the French were in equal force; and they could the more easily annihilate it if it was defended by an inferior force.