Office work XVIII Work of Major J. W. Powell XVIII Work of Mr. H. W. Henshaw XVIII Work of Col. Garrick Mallery XVIII Work of Mr. J. Owen Dorsey XVIII Work of Mr. A. S. Gatschet XIX Work of Mr. Jeremiah Curtin XIX Work of Mr. James Mooney XIX Work of Mr. J. N. B. Hewitt XX Work of Mr. J. C. Pilling XX Work of Mr. W. H. Holmes XXI Work of Mr. Cyrus Thomas XXII Work of Mr. H. L. Reynolds XXII Work of Mr. Victor Mindeleff XXII Work of Mr. Cosmos Mindeleff XXII Work of Mr. J. K. Hillers XXIII Work of Mr. Franz Boas XXIII Work of Mr. Lucien M. Turner XXIV Necrology XXIV Mr. James Stevenson XXIV Accompanying paper XXV Picture-writing of the American Indians, by Garrick Mallery XXVI Financial statement XXX LETTER OF TRANSMITTAL. SMITHSONIAN INSTITUTION, BUREAU OF ETHNOLOGY, _Washington, D. C., October 1, 1889_. SIR: I have the honor to submit my Tenth Annual Report as Director of the Bureau of Ethnology. The first part of it presents an exposition of the operations of the Bureau during the fiscal year 1888-’89; the second part consists of a work on the Picture-writing of the American Indians, which has been in preparation for several years. I desire to express my thanks for your earnest support and your valuable counsel relating to the work under my charge. I am, with respect, your obedient servant, [Illustration: signature] _Director_. Prof. S. P. LANGLEY, _Secretary of the Smithsonian Institution_. TENTH ANNUAL REPORT OF THE BUREAU OF ETHNOLOGY. BY J. W. POWELL, DIRECTOR. INTRODUCTION. Research among the North American Indians, in obedience to acts of Congress, was continued during the fiscal year 1888-’89.