They have frequent feasts, and particular circumstances never fail to produce them, such as a tedious illness, long fasting, etc. On these occasions it is usual for the person who means to give the entertainment, to announce his design, on a certain day, of opening the medicine-bag, and smoking out of his sacred stem. This declaration is considered as a sacred vow that cannot be broken. There are also stated periods, such as the spring and autumn, when they engage in very long and solemn ceremonies. On these occasions dogs are offered as sacrifices, and those which are very fat, and milk-white, are preferred. They also make large offerings of their property, whatever it may be. The scene of these ceremonies is in an open inclosure on the bank of a river or lake, and in the most conspicuous situation, in order that such as are passing along or travelling, may be induced to make their offerings. There is also a particular custom among them, that, on these occasions, if any of the tribe, or even a stranger, should be passing by, and be in real want of any thing that is displayed as an offering, he has a right to take it, so that he replaces it with some article he can spare, though it be of far inferior value; but to take or touch any thing wantonly is considered as a sacrilegious act, and highly insulting to the great Master of Life, to use their own expression, who is the sacred object of their devotion.