§ 4116. Co-operation of Indians shall be sought. In the discharge of
the duties imposed by this article, the said commissioner shall endeavor
to secure the co-operation of all the several bands of Indians, and for
this purpose, shall visit, by himself or his authorized representative,
all the reservations where they reside, lay the matter before them in
public assembly, inviting them to assist either by appropriating their
public moneys to this object, or by setting apart lands and erecting
suitable buildings, or by furnishing labor or materials for such
buildings, or in any other way which he or they may suggest as most
effectual for the promotion of this object.