THE DAKOTA WINTER COUNTS. The existence among the Dakota Indians of continuous designations of years, in the form of charts corresponding in part with the orderly arrangement of divisions of time termed calendars, was first made public by the present writer in a paper entitled “A Calendar of the Dakota Nation,” which was issued in April, 1877, in Bulletin III, No. 1, of the United States Geological and Geographical Survey. Later consideration of the actual use of such charts by the Indians has induced the change of their title to that adopted by themselves, viz., Winter Counts, in the original, waníyetu wówapi. The lithographed chart published with that paper, substantially the same as Plate VI, now presented, was ascertained to be the Winter Count used by or at least known to a large portion of the Dakota people, extending over the seventy-one years commencing with the winter of A. D. 1800-’01. [Illustration: BUREAU OF ETHNOLOGY FOURTH ANNUAL REPORT PL. VI WINTER COUNT ON BUFFALO ROBE.] The copy from which the lithograph was taken, is traced on a strip of cotton cloth, in size one yard square, which the characters almost entirely fill, and was made by Lieut. H. T. Reed, First United States Infantry, an accomplished officer of the present writer’s former company and regiment, in two colors, black and red, used in the original, of which it is a _fac simile_. The general design of the chart and the meaning of most of its characters were ascertained by Lieutenant Reed, at Fort Sully, Dakota, and afterwards at Fort Rice, Dakota, in November, 1876, by the present writer; while further investigation of records and authorities at Washington elicited additional details used in the publication mentioned and many more since its issue. After exhibition of the copy to a number of military and civil officers connected with the Departments of War and of the Interior, it appeared that those who, from service on expeditions and surveys or from special study of American ethnology, were most familiar with the Indian tribes west of the Mississippi, had never heard of this or any other similar attempt among them to establish a chronological system. Bragging biographies of chiefs and partisan histories of particular wars delineated in picture writing on hides or bark are very common. Nearly every traveler on the plains has obtained a painted robe, on which some aboriginal artist has stained rude signs purporting to represent tribal or personal occurrences, or often the family connections of the first owner. Some of these in the possession of the present writer have special significance and are mentioned under appropriate heads in the present work.