This section is from the book "Manual Of Useful Information", by J. C Thomas. Also available from Amazon: Manual of useful Information.
The entire extent of territory now in a state of reservation for Indian purposes, including all portions of the Indian Territory, whether in fact occupied or unoccupied by Indians, is 112,413,440 acres, being equivalent to an average of 456 acres for each Indian, computed on the last reported number of the total population, including those estimated as outside the reservations. Of this area about 81,020,129 acres are within the scope of the general allotment law of 1887, and afford an average for the population residing upon such lands, amounting to 173,985, of about 465 acres to each. It will be seen that, by the execution of the general allotment law and breaking up of the reservations, a wide area of the public domain will be opened to settlement.
The Cherokees, Creeks, Choctaws, Chickasaws and Seminoles, constituting the five civilized tribes; the Osages, Miamis, Peorias, and Sacs and Foxes of the Indian Territory, and the Seneca nation in New York, are excepted from the provisions of the allotment act. The territory occupied by them embraces 21,969,695 acres, not counting therewith the 6,024,239 acres of the Cherokee outlet, the 1,887,801 acres known as Oklahoma, and the 1,511,576 acres lying in the Indian Territory south of the north fork of the Red River. The number of these excepted Indians is shown by the reports to be 72,110 in all.
 
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