... primitive in this hemisphere, perhaps in the world, as the Onas are today living in the Stone Age. Dr. E. Von Hornbostel of Berlin University, who has collaborated with me in making a special study of my phonographic records of their songs, informs me that these songs are the most primitive American-Indian songs of which they have any record." Of importance for a clear understanding of the mental traits of these Indian tribes, as the source from which these attacks ... — The Journal of Abnormal Psychology - Volume 10
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