The Indians continued to come and go on their nomadic excursions according to their habit, and while in this vicinity they lived in their wigwams near the river, their favorite camping place being at a point on the south bank near the present State Street bridge. A swale or gully opened into the river there, reaching back as far as the present line of Randolph Street. The movements of the Indians were regarded with great interest by the traders located in the neighborhood, who were anxious to sell them supplies in exchange for the furs brought in by them; they were regarded with interest also by the officers and men of the garrison, who desired to maintain peaceable relations with their savage neighbors. But while furs were the principal article offered in payment for goods obtained from the traders, the Indians also brought in quantities of maple sugar put up in birch-bark packages, which usually found ready sale among the settlers. These packages were called "barks" by some and "mococks" by others, each of them containing from twenty-five to fifty pounds. Birkbeck says, in his _Letters from Illinois_, written in 1818, that maple sugar could be purchased from the Indians for about twenty-five cents a pound, which was about the same price as the coarse brown or "muscovado" sugar from Louisiana was sold for. In his book of reminiscences of early Chicago, Gale tells us that he remembers as a boy how he prized the granulated maple sugar which he bought from the squaws, "put up in small birch-bark boxes, ornamented with colored grasses, and in large baskets made of the same material, holding some twenty-five pounds." It was often called "Indian sugar." When the Indians visited the settlements it was their custom to wander about the streets in an aimless manner, stopping from time to time and taking a look into the window of any house they happened to be passing. The Indians, whether men, women, or children, would cover the tops of their heads with blankets to exclude the light, and press their faces against the window panes and gaze intently into the houses for long periods at a time, to the great discomfort and even terror of the people within. If they wished to enter a house they did not pause to knock, but stalked in and squatted on the floor, and none dared to resist them or to order them to depart from the premises. "You always heard a man come in," says Mrs. Baird, in her narrative, "as his step was firm, proud, and full of dignity. The women, however, made no sound." There were several chiefs of the Potawatami tribe whose names are well known in the historic annals of that time. One of them was Black Partridge, often called "the Partridge"; there were also Winnemeg, or, as he was sometimes called, Winamac; Waubansee; Topenebe; Billy Caldwell, otherwise known as Sauganash or "the Sauganash," meaning Englishman, as he was an educated half-breed; and Alexander Robinson.