| Oaths, agents may administer | 6 |
 agents, subagents, and superintendents may administer regarding depredations | 20 |
| inspectors may administer | 4 |
| of clerk of United States court in Indian Territory | 40 |
| relative to jurors | 42 |
| of judge of United States court in Indian Territory | 40 |
| of jury commissioners of United States court in Indian Territory | 42 |
| of marshal of United States court in Indian Territory | 40 |
| of deputies | 40 |
| Ochechotes, embraced in Yakima Nation | 529 |
| Officers of United States, crimes upon, in Indian Territory | 37 |
| tribal officers included | 90 |
| Ogden Land Company, claim to Seneca lands to be investigated | 522 |
| Oglala Sioux, agreement of September 26, 1876 | 169,170 |
| Oil lands, Cherokee Nation, rights in, unaffected by agreement of April 9, 1900 | 729 |
| lease in Indian Territory, by Secretary of Interior | 93 |
| to W. B. Barker by Seneca Nation | 468,622 |
| Okinagan, statistics | 1030 |
| Oklahoma, ceded lands in Indian Territory, to become a part of | 45 |
| district courts, jurisdiction over actions between Indians of different tribes | 46 |
| Executive orders relating to reservations in | 886 |
| government for, provided | 45 |
| lands ceded in, payment for | 47 |
| railroads in, general provisions for | 114 |
| grants restricted | 47 |
| mortgages to be recorded in Interior Department | 117 |
| school and missionary lands reserved on ceded lands | 47 |
| telegraph lines through | 114 |
| telephone lines through | 114 |
| Okmulgee, term of court at | 120 |
| Old Settlers' (Western Cherokee) claim referred to Court of Claims | 316 |
| Old Winnebago Reserve, S. Dak., Executive orders establishing | 896 |
| Omaha, allotments | 213 |
| descent according to State law | 214 |
| lieu allotments | 213 |
| patents, contents of | 213,214 |
| to women and children born since completion of former allotments | 486 |
| annuities, expenditure of, under direction of agent | 270 |
| per capita payment of, appropriations for | 270 |
| commissioners for allotting and sale of reservation, compensation of | 214 |
| funds of, payment of part per capita | 270,754 |
| proceeds of sale of Nebraska lands | 139,213,363 |
| proceeds of lands sold to Winnebago to be held for civilization purposes | 153 |
| lands in Nebraska, part purchased for Winnebago | 153 |
| sale of, contiguous entries in certain cases | 364 |
| forfeitures not to be declared in certain cases | 364 |
| proceeds to be held in trust | 363 |
| laws of United States and State extended over allottees | 214 |
| legislation relating to, note | 212 |
| reservation in Nebraska, allotments in severalty on | 213,486 |
| sale of | 212,231 |
| appraisement of lands | 212 |
| mill to be erected | 231 |
| patents | 213 |
| payment, time extended | 231 |
| proceeds, disposal of | 213 |
| survey | 212 |
| terms of sale | 212 |
| western part, sale | 138 |
| appraisement | 138 |
| commissioners to be appointed | 138 |
| fund derived from proceeds | 139 |
| Omaha Reservation in Nebraska, western part, method of sale | 138 |
| price of land | 139 |
| proceeds, disposal of | 139 |
| statistics | 1038 |
| tribal trust lands | 214 |
| Omaha, warehouse for supplies at | 87,620 |
| Omaha and Winnebago Agency, Nebr., statistics | 1038 |
| Omaha Northern Railway Company, right of way through Omaha and Winnebago Reservation in Nebraska | 634 |
| time for construction extended | 749 |
| Omaha Reservation, Nebr., Eastern Nebraska and Gulf Railway granted right of way through | 513 |
| time for construction extended | 616 |
| Omaha Northern Railway Company granted right of way through | 634 |
| time for construction extended | 749 |
| reserve for school to be erected by Presbyterian Board of Home Missions | 551 |
| sale of reservation, forfeiture for nonpayment | 271 |
| time for payment extended | 271 |
| Sioux City and Omaha Railway Company granted right of way through | 682 |
| Women's National Indian Association to have 5 acres reserved | 271 |
| Oneida, statistics | 1034,1037 |
| Onondaga, statistics | 1037 |
| Ontonagon Reserve, Mich., Executive orders establishing | 848 |
| Ordinances, Cherokee Nation, approval by President and publication | 112,727,728 |
| Choctaw and Chickasaw Nations, approved by President | 654 |
| Creek Council, approved by President and publication | 112,661,739 |
| town-site, in Choctaw and Chickasaw Nations, not to conflict with United States laws | 651 |
| Oregon, Alsea and Siletz Reservation, established | 157 |
| Executive orders relating to reservations in | 886 |
| Oregon Indian wars (1851 to 1856), pensions to survivors of | 123 |
| Oregon Railway and Navigation Company, rights in Umatilla Reservation not affected by sale of part of that reservation | 211 |
| right of way through Nez Perce Reservation, Idaho | 288 |
| Orphans, agents to select allotments for | 33 |
| funds of, Cherokee Nation, interest to be used to support the Cherokee Orphan Asylum | 793 |
| Choctaw Nation, sale of certain lands to be credited to | 655 |
| Creek Nation | 323 |
| general provisions relative to | 13 |
| Osage, account of funds to be stated | 187 |
| allotments in severalty, general act of 1887 inapplicable | 35 |
| civil actions against, district court of Oklahoma to have jurisdiction | 87 |
| terms of court at Pawhuska | 87 |
| civilization fund, account of, to be stated | 187 |
| funds of, accumulated interest to be distributed | 741 |
| payment to Cherokee for reservation in Indian Territory | 142 |
| proceeds of rents of pasture lands to be distributed | 741 |
| legislation relative to, note | 137 |
| Reservation in Indian Territory purchased from Cherokee | 137,138,142 |
| Kansa to be located on | 138 |
| payment for lands | 138 |
| railroad, telegraph, and telephone lines through | 118 |
| Reservation in Kansas— | |
| Leavenworth, Lawrence and Galveston Railroad may purchase land for right of way | 164,165 |
| Missouri, Kansas and Texas Railroad may purchase land for right of way | 164,165 |
| sale of lands | 164,165 |
| account of sales to be stated | 187 |
| remaining lands to be sold | 193,209 |
| taxation of lands permitted | 165 |
| statistics | 1038 |
| traders, accounts to be examined and adjusted | 741 |
| general provisions respecting | 741 |
| trust and diminished reserve lands to be sold | 193,209 |
| isolated tracts to be sold | 703 |
| second entries confirmed | 438 |
| Osage Agency, Okla., statistics | 1038 |
| Osette Reserve, Wash., Executive orders establishing | 920 |
| Oto and Missouri, allotments in severalty | 510 |
| alienation restricted for ten years | 511 |
| funds of, part may be used for improvement of allotments | 566 |
| proceeds of lands sold for Iowa Reservation | 566 |
| reservation in Kansas and Nebraska | 167,190 |
| legislation relative to, note | 190 |
| Oto and Missouri, removal to Ponca Agency, Okla | 190 |
| reservation in Kansas and Nebraska, sale of lands in | 139,167,177,190 |
| revision and readjustment of sales | 484,698 |
| reservation in Oklahoma for Iowa to be purchased from | 566 |
| statistics | 1039 |
| Oto and Missouri Reservation, Okla., telephone right of way granted Missouri and Kansas Telephone Company | 676 |
| Oto Reserve, Ind., T., Executive orders establishing | 844 |
| Ottawa, allotments in Indian Territory, sale to Miami Town Company for cemetery purposes | 600 |
| on lands in Michigan | 158,161 |
| education, property held in trust for | 143 |
| settlement of controversy regarding | 145 |
| lands in Indian Territory, sale of, to Miami Town Company | 407 |
| Kansas, taxation of certain | 144 |
| Michigan, allotments on | 158,161 |
| to be entered under homestead laws | 158,161 |
| legislation relative to, note | 143 |
| statistics | 1036,1040 |
| Ottawa and Chippewa Reserve, Mich., Executive orders establishing | 849 |
| Ottawa University, lands exempt from taxation | 144 |
| Otter Tail Pillager Chippewa, statistics | 1046 |
| to settle on White Earth Reservation | 133 |
| Ouray, salary for, while head chief of Ute | 152,186 |
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