Ice-crystals, colors in, [367]
Icebergs, centre of gravity in, [145]
Impenetrability, [45]
Imponderable agents, [16]
Inclined plane, [241]
Induction in electricity, [379]
Induction in magnetism, [400]
Inertia, [48]
Inertia shown in the communication of motion, [183]
Inertia shown in disposition of motion to continue, [184]