— - — —, T. Edmonson, modification of Ampère's rotating, xxvi, 370.f
— - — —, —, rotating armature, xxvi, 205f; xxxii, 399.
— - — —, J. Henry's application of a galvanic multiplier, xix, 400.f
— - — —, J. B. Joslin, xxi, 86.f
— - — —, J. Locke, and on magneto-electricity, xxxiv, 125.f
— - — —, B. R. McConnell's rotating, xxxiii, 188.
— - — —, C. G. Page, xxxiii, 191f; xxxiv, 364; xlix, 131.f
— - — —, —, double axial reciprocating engine, xlix, 139.f
— - — —, —, with revolving armature, xxxvi, 350.f
— - — —, —, C. G. Page, compound electro-magnet, xxxv, 253.f