With regard to the gentlemen whose names are affixed to certificates below, I am fully warranted in saying, that no individuals have had better opportunities of acquiring a knowledge of the persons, habits, costumes, and sports of the Indian tribes, or possess stronger claims upon the public confidence in the statements they make respecting the correctness of delineations, &c., of Mr. Catlin's "Indian Gallery;" and I may add my own testimony, with regard to many of those Indians whom I have seen, and whose likenesses are in the collection, and sketched with fidelity and correctness. C. A. HARRIS, Commissioner of Indian Affairs, Washington. ----*---- I have seen Mr. Catlin's collection of Portraits of Indians, many of which were familiar to me, and painted in my presence; and, as far as they have included Indians of my acquaintance, the _likenesses_ are easily recognised, bearing the most striking resemblance to the originals, as well as faithful representations of their costumes. W. CLARK, Superintendent of Indian Affairs, St. Louis. ----*---- I have examined Mr. Catlin's collection of the Upper Missouri Indians to the Rocky Mountains, all of which I am acquainted with, and indeed most of them were painted when I was present, and I do not hesitate to pronounce them correct likenesses, and readily to be recognised. And I consider the _costumes_, as painted by him, to be the _only correct representations_ I have ever seen. JOHN F. A. SANFORD, U. SS. Indian Agent for Mandans, Rickarees, Minatarees, Crows, Knisteneaux, Assinneboins, Blackfeet, &c. ----*---- Having examined Mr. Catlin's collection of Portraits of Indians of the Missouri and Rocky Mountains, I have no hesitation in pronouncing them, so far as I am acquainted with the individuals, to be the best I have ever seen, both as regards the expression of countenance and the exact and complete manner in which the costume has been painted by him. J. L. BEAN, S. Agent for Indian Affairs. ----*---- I have been for many years past in familiar acquaintance with the Indian tribes of the Upper Missouri and the Rocky Mountains, and also with the landscape and other scenes represented in Mr. Catlin's collection, and it gives me great pleasure to assure the world that, on looking them over, I found the likenesses of my old friends easily to be recognised, and his sketches of Manners and Customs to be portrayed with singular truth and correctness. J. PILCHER, Agent for Upper Missouri Indians. ----*----