The increases are due to growth of the mixed-blood elements, to white men marrying Indian women.[3] The allotment plan, the accumulation of tribal funds, the increase in property values—all these factors induced many persons to “get on the Indian rolls” and thus swell the numbers; while the pure-blood Navahos are increasing, I doubt if other tribes show growth—save in the mixed-blood element referred to above. Certainly these two maps present us with facts for serious study. They indicate the rapidity with which the Red Race’s property is being legislated away. Many reservations have been abolished, and the Indians allotted land in severalty. If the Indians held such lands as white men hold their farms, the whole Indian area today would be as large as formerly, even though reservation lines are abolished. Some do hold their lands. But most of them sell, lease, or mortgage; the maps, after all, tell the sad truth, and the erasure of governmental lines usually means the blotting out of Indian titles. TABLE 1.—INDIAN POPULATION OF THE UNITED STATES FROM 1850 TO 1913 Year Authority 1850 Report of H. R. Schoolcraft 388,229 1853 Report of United States Census, 1850 400,764 1855 Report of Indian Office 314,622 1857 Report of H. R. Schoolcraft 379,264 1860 Report of Indian Office 254,300 1865 do 294,574 1870 Report of United States Census 313,712 1875 do 305,068 1876 do 291,882 1877 do 276,540 1878 do 276,595 1879 do 278,628 1880 do 322,534 1881 do 328,258 1882 Report of Indian Office 326,039 1883 do 331,972 1884 do 330,776 1885 do 344,064 1886 do 334,735 1887 do 243,299 1888 do 246,036 1889 do 250,483 1890 Report of United States Census 248,253 1891 Report of Indian Office 246,834 1892 do 248,340 1893 do 249,366 1894 do 251,907 1895 do 248,340 1896 do 248,354 1897 do 248,813