In. Offering the present work to the public, it is the author's hope to supply, With respect to other dictionaries of the Chinook Jargon, a desideratum hitherto unsupplied in the fifty or more editions of small vocabularies issued during a period of seventy years. It has'been the aim to give the origin and derivation of every word treated, whenever such is known. And to record under each every authoritative reference thereto. Also a reference to the author ity is noted.