| Ignas, patent in fee to | 246 | |
| Improvements, Choctaws and Chickasaws, coal and asphalt lands, provisions for sale | 542 | |
| Indian funds, report to be submitted, 1910 | 449 | |
| Indian Reform School, appropriation for 1907 | 195 | |
| Indian Territory: | |
 Arkansas, western boundary extended into | 115 | |
| Certified copies of enrollment records | 172 | |
| Deeds and conveyances— | |
| Acknowledgment | 9 | |
| Recording | 9 | |
| Extension of personal property, investigation of | 97 | |
| Horse stealing punished | 5 | |
| Insane persons, care of | 99 | |
| Land offices discontinued | 172 | |
| Land records transferred to district court | 172 | |
| Larceny of horses and stock, penalty | 5 | |
| Leases by allottees, investigations of frauds | 277 | |
| Light and power companies, rights of way granted | 178 | |
| Municipalities granted additional powers | 179 | |
| Orphan children, appropriation for care of 1908 | 277 | |
| Pharmacies, regulation of | 100 | |
| Railroad taxation of property | 180 | |
| Recording of deeds and conveyances | 8 | |
| Street improvements | 180 | |
| Timber and stone, use for railroads and highways | 5 | |
| Industry among Indians, appropriation for, 1912 | 490 | |
| Inkanish, Charles, per capita payment to,1905 | 47 | |
| Inkanish, Henry, per capita payment to, 1905 | 47 | |
| Inkanish, James, per capita payment to, 1905 | 47 | |
| Insane persons: | |
| Asylum at Canton, N. Dak., appropriation for | 139 | |
| Indian Territory, care of | 99 | |
| Indian Territory, to be cared for at Canton, S. Dak | 214 | |
| Inspector of Indian Territory, appropriation for, 1908 | 277 | |
| Inspectors, appropriation for: | |
| 1905 | 36 | |
| 1906 | 125 | |
| 1907 | 197 | |
| 1908 | 270 | |
| 1909 | 322 | |
| 1910 | 392 | |
| Inspectors of irrigation, appropriation for, 1913 | 530 | |
| Inspectors: | |
| Appropriation for pay, 1905 | 125 | |
| Irrigation engineers, two to be | 125 | |
| Inspector's office, Indian Territory, appropriation, for 1905 | 135 | |
| Interior Department: | |
| Classifying and indexing records, appropriation for, 1913 | 532 | |
| Investigation of, joint committee created | 484 | |
| Intermarried whites, Cherokee Nation: | |
| Against Cherokee Nation, payment of award of Supreme Court | 359 | |
| Appeal to Supreme Court | 147 | |
| Attorney's fee to be fixed by court | 54 | |
| Attorney's fee to be fixed by Court of Claims | 207 | |
| Court of Claims to determine rights | 54 | |
| Court of Claims to render final judgment. | 147 | |
| Improvements may be sold to qualified citizens | 305 | |
| Interpreters: | |
| Appropriation for— | |
| 1905 | 36 | |
| 1906 | 125 | |
| 1907 | 198 | |
| 1908 | 270 | |
| 1909 | 322 | |
| 1910 | 392 | |
| 1911 | 432 | |
| 1912 | 490 | |
| Appropriation for pay, 1905 | 125 | |
| Employees of United States not to be paid for | 432 | |
| Intoxicants: | |
| Appropriation for suppressing | 390 | |
| 1907 | 196 | |
| 1908 | 268,313 | |
| (Deficiency, 1908) | 313 | |
| 1909 | 319 | |
| 1910 | 390 | |
| 1911 | 430 | |
| 1912 | 488 | |
| 1913 | 530 | |
| 1914 | 562 | |
| Arizona reservations, sale prohibited | 469 | |
| Flathead Reservation, prohibited for 25 years | 403 | |
| Fort Berthold Reservation, prohibited for 25 years | 466 | |
| Fort Peck Reservation, prohibited for 25 years | 404 | |
| New Mexico reservations, sale prohibited | 468 | |
| Oklahoma, prohibited in certain parts for 21 years | 188 | |
| Omaha Reservations, prohibited for 25 years | 522 | |
| Pine Ridge Reservation, prohibited for 25 years | 458 | |
| Pueblo Indians, sale of prohibited | 468 | |
| Red Lake Reservation, Minnesota, sale forbidden in lands sold to Minneapolis, Red Lake & Manitoba Railroad Co. | 115 | |
| Rosebud Reservation, prohibited for 25 years | 462 | |
| Siletz Reservation, prohibited for 25 years | 454 | |
| Special officer for suppressing liquor traffic | 530 | |
| Standing Rock Reservation, prohibited for 25 years | 558 | |
| Wines used for church purposes excepted | 530 | |
| Yakima Reservation, prohibited for 25 years | 452 | |
| Intruders: | |
| Appropriation for removal— | |
| 1906 | 136 | |
| 1907 | 206 | |
| 1908 | 276 | |
| 1909 | 338 | |
| 1910 | 411 | |
| Removal from allotments, appropriations for, 1905 | 51 | |
| Investigation of Interior Department, joint committee created | 484 | |
| Investigation of Indian Affairs, joint commission created, 1913 | 565 | |
| Investigations, appropriation for, 1910 | 390 | |
| Iowas: | |
| Allotments to children, 1906 | 216 | |
| Appropriation for— | |
| 1905 | 42,128 | |
| 1906 | 128 | |
| 1907 | 214,230 | |
| 1908 | 281 | |
| Equalization of payments to Oklahoma and Kansas branches | 329 | |
| Funds due under treaty of 1854 placed to credit of | 281 | |
| Patents in fee may be given | 216 | |
| Payments for drainage assessments | 185 | |
| Patents in fee simple | 185 | |
| Per capita payments— | |
| 1905 | 47 | |
| 1907 | 281 | |
| 1908 | 329 | |
| Iromwhip, Johah, patent in fee to | 242 | |
| Irrigation: | |
| Allotments, cancellation in case of conflicts | 479 | |
| Allotments within project may be sold | 195 | |
| Annual reports on all projects | 430 | |
| Annual report to show cost of projects and expenditures | 432 | |
| Appropriation for— | |
| 1904 | 17 | |
| 1905 | 52,137 | |
| 1906 | 137 | |
| 1907 | 195 | |
| 1908 | 268 | |
| 1909 | 319 | |
| 1910 | 389,406 | |
| 1911 | 430,437 | |
| 1912 | 488 | |
| 1913 | 529 | |
| 1914 | 561 | |
| Blackfeet Reservation, appropriation for 1911 | 437 | |
| Repayment of moneys advanced for construction | 437 | |
| Blackfeet Reservation, appropriation for— | |
| 1912 | 495 | |
| 1913 | 537 | |
| 1914 | 574 | |
| Blackfeet Reservation, Mont., provisions for | 286 | |
| Carey Act extended to Uintah Reservation | 445 | |
| Colorado Reservation | 70 | |
| Colorado River Reservation— | |
| Appropriation for 1914 | 569 | |
| Appropriation for constructing channels | 534 | |
| Appropriation for pumping plant | 432 | |
| Consultation with engineers and other services | 430 | |
| Crow Reservation, lands reserved for | 404 | |
| Flathead Reservation— | |
| Appropriation for— | |
| 1905 | 402 | |
| 1911 | 437 | |
| Repayment of moneys advanced for construction | 437 | |
| 1912 | 495 | |
| 1913 | 537 | |
| 1914 | 574 | |
| Fort Belknap Reservation— | |
| Appropriation for— | |
| 1910 | 402 | |
| 1911, repayment of moneys advanced for construction | 437 | |
| 1912, costs to be a lien on allotment | 495 | |
| 1913 | 537 | |
| 1914 | 574 | |
| Fort Hall Reservation | 397 | |
| Appropriation for constructing works, 1910 | 473 | |
| Appropriation to complete work, 1912 | 492 | |
| Appropriation for— | |
| 1913 | 535 | |
| 1914 | 570 | |
| Surveys for | 202 | |
| Fort Peck Reservation— | |
| Appropriation for— | |
| 1913 | 537 | |
| 1914 | 574 | |
| Provisions for | 378 | |
| Gila River Reservation— | |
| Appropriation for construction | 200 | |
| Appropriation for continuing work, 1912 | 491 | |
| Appropriation for— | |
| 1913 | 533 | |
| 1914 | 568 | |
| Costs of project to be a lien on allotments | 533 | |
| Indian lands affected by reclamation act | 333 | |
| Inspectors— | |
| Appropriation for 1912 | 488 | |
| Two to be engineers | 125 | |
| Investigation and report of project | 584 | |
| Klamath Reservation | 235 | |
| Appropriation for 1913 | 545 | |
| Appropriation to complete work | 582 | |
| Modoc Point project to be constructed | 500 | |
| Navajo Reservation— | |
| Appropriation for completion of project, 1914 | 569 | |
| Appropriation for construction | 533 | |
| Appropriation to develop water supply | 570 | |
| Papago Reservation— | |
| Appropriation for 1914 | 569 | |
| Appropriation for water supply | 533 | |
| Examination and report | 533 | |
| Pima Indians near Sacaton, Ariz | 158 | |
| Pyramid Lake Reservation | 70 | |
| Reservation of Indian lands available for projects | 479 | |
| San Carlos Reservation— | |
| Examination and report | 533 | |
| Investigation and report | 568 | |
| Southern Ute Reservation, purchase of water rights | 157 | |
| Superintendents of irrigation to be appointed | 430 | |
| Uintah Reservation— | |
| Appropriation for— | |
| 1911 | 445 | |
| 1912 | 503 | |
| Provisions for | 243 | |
| Reservoir sites— | |
| Proclamation reserving | 610 | |
| Proclamation amended | 613 | |
| Uncompahgre Ute Reservation— | |
| Appropriation for— | |
| 1911 | 445 | |
| 1912 | 503 | |
| Provisions for | 243 | |
| White River Reservation— | |
| Appropriation for— | |
| 1911 | 445 | |
| 1912 | 503 | |
| Provisions for | 243 | |
| Wind River Reservation | 119,123 | |
| Appropriation for— | |
| 1907 | 252 | |
| 1911 | 484 | |
| Repayment of moneys advanced | 448 | |
| 1912 | 505 | |
| 1913 | 550 | |
| Extension of system | 345 | |
| Yakima Reservation— | |
| Appropriation for | 420 | |
| 1908 | 302 | |
| 1912 | 504 | |
| 1914 | 584 | |
| Extension of system | 344,446 | |
| General provisions | 159 | |
| Yuma Reservation, appropriation for 1913 | 70,535 | |
| Zuni Reservation, appropriation for 1910 | 407 | |
| Zuni project, appropriation to complete | 292 | |
| Isaac, Jane, land purchased for allotment | 296 | |
| Isaacs, King, payment of judgment against | 544 | |
| It-ko-ki-po-pi, cancellation of allotment | 241 |
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