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SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE. VOL. I. ANCIENT MONUMENTS OF THE MISSISSIPPI VALLEY.

Ancient Works, Marietta, Ohio.

SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE.

VOL. I.

EVERY MAN IS A VALUABLE MEMBER OF SOCIETY, WHO, BY HIS OBSERVATIONS, RESEARCHES, AND EXPERIMENTS, PROCURES KNOWLEDGE FOR MEN.—SMITHSON.

CITY OF WASHINGTON:

PUBLISHED BY THE SMITHSONIAN INSTITUTION.