Into the hostile camp, [331]
Introducing high-grade horses and cattle, [176]
Irrigation, natural sub-, [6]
Isaac I. Stevens' survey for railroad, [162]
Isaacs, H. P., [149]
Isaacs, J. C., [149]
Itemized expense of wheat crop, [183]
Jaussaud, Leon, [180]
Jay Cooke & Company, [163]
Jefferson's instructions to Captain Lewis, [33]