Page:The American Indian.djvu/298

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THE AMERICAN INDIAN
244

process, but we may suspect that the causes underlying gradation lie outside of consciously directed activities.

1. Teit, 1900. I; 1909. I; 1906. I.

2. Spinden, 1908. I.

3. Lowie, 1909. I.

4. Lewis, 1906. I.

5. Kroeber, 1904. I.

6. Boas, 1906. I; Krause, 1885. I.

7. Boas, 1907. I.

8. Dall, 1877, I.

9. Solberg, 1907. I.

10. Boas, 1907. I.

11. Stefánsson, 1914. I.

12. Pike, 1892. I, chapter 4; Grant, 1902. I.

13. Morice, 1890. I; 1895. I; 1906. I.

14. Hearne, 1795. I.

15. Mackenzie, A., 1902. I.

16. Hearne, 1795. I.

17. Jones, W., 1906. I; Skinner, 1913. I; 1915. I; Hoffman, 1897. I.

18. Morgan, 1904. I.

19. MacCauley, 1887. I.

20. Swanton, 1911. I; Speck, 1909. I; Mooney, 1900. I.

21. Holmes, 1886. I.

22. Goddard, 1913. I; Hough, 1915. I.

23. Kroeber, 1917. I.

24. Hough, 1915. I.

25. Russell, 1908. I.

26. Tozzer, 1907. I.

27. Joyce, 1914. I; Spinden, 1917. I.

28. Bandelier, 1878. I; 1879. I.

29. Joyce, 1912. I.

30. Markham, 1910. I.

31. Dobrizhoffer, 1822. I.

32. Church, 1912. I, p. 300.

33. Whiffen, 1915. I.

34. Im Thurn, 1883. I.

35. Maximilian, 1820. I; Von den Steinen, 1897. I.

36. Church, 1912. I.

37. Bowman, 1916. I.

38. Fewkes, 1902. I.