— of soft iron, acquired by induction, retained for some time if the armature is not removed, xxviii, 63.

—, molecular forces, on the disturbance of, by, C. G. Page, xxxiii, 118.

— produced by friction, xix, 394.

— — by a stroke of lightning, vi, 394.

— — by voltaic electricity, iii, 383.

— — by the solar rays, xiii, 171.

—, double helix for inducing, C. G. Page, xxxv, 261.f

Magnetization, some phenomena of, De Nairac, xxvii, 401.f

[Magneto-electric] apparatus, and experiments, J. P. Emmet, xxiv, 78f; xxvi, 311; xxviii, 331.

— - — — —, J. Henry, xxviii, 331.