Ice-Harvesting Apparatus.......................... ii 127 Ice-house......................................... ii 131 Ice-making Machinery.............................. ii 132 Ice-Yacht......................................... ii 142 Impulsoria........................................ ii 118 Inch, miners'..................................... ii 435 Inclined plane.................................... ii 796 Inclined plane, canal............................. i 308 Inclined Plane (railroad)......................... ii 145 Increment-cut file................................ i 767 Incubator......................................... i 33 India-Rubber...................................... ii 148 Indicator (steam-engine).......................... ii 151 Indicator, gas-pressure........................... i 925 Indicator, speed.................................. i 161 Induction coil.................................... i 560 Ingots, steel..................................... ii 811 Injectors................................. ii 161; i 37 Inspirator, the Hancock........................... ii 170 Insulator, telegraph.............................. ii 856 Interlocking signals.............................. ii 765 Involute teeth.................................... ii 11 Iridium alloys.................................... i 67 Iron, loss of in melting.......................... i 333 Iron, strength of................................. ii 830 Iron alloys....................................... i 67 Iron-casting...................................... i 333 Iron-making Processes............................. ii 173 Iron-making Processes-Puddling.................... ii 183 Iron-making Machinery............................. ii 195 Ironclad vessels.................................. i 96 Ironing machines (hat)............................ ii 107 Ironing machines (laundry)........................ ii 278 Isinglass......................................... ii 58
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