The enterprising Yankees rapidly drew to the front, so that during the years from 1790 to 1818, the records show one hundred and eight American vessels regularly engaged in the business, while only twenty-two English, with a few Portuguese and French are found. It should, of course be remembered that the tremendous strife of the Napoleonic Wars was engrossing the attention of European nations during that time. So well known did the Boston navigators become in that period that the common name of Americans used by the Oregon Indians was "Bostons." Robert Gray, the discoverer of the Columbia River, was fitted out by Bulfinch and others of the first Boston Company. During the period under consideration the profits of the traffic were usually very great, though variable, sometimes actual losses being incurred, while disaster from wreck, storm, scurvy, and murderous Indians was frequent. During the two years, 1786 and 1787, if Dixon is to be followed, there were sold in Canton five thousand eight hundred sea-otter hides for $160,700. Swan figures that with the four years ending with 1802, forty-eight thousand five hundred skins were sold. Sturgis states that he knew a capital of $50,000 to yield a gross income of $284,000. He relates that he had collected as high as six thousand fine skins in a single voyage and once secured five hundred and sixty of the best quality in one day. The Indians, however, learned to become very expert traders, and as they discovered the eagerness with which the whites sought their furs, they raised the price. They became, moreover, very capricious and unreliable, so that the phenomenal profits could no longer be obtained. The stage of the history of the fur-trade of which we have thus far spoken may be called its first era of a free-for-all rush to the new seas, with no vast moneyed interests in any position of leadership. But commercial conditions were already in existence which were bound to reverse the situation.