—, —, H. N. Fenn, xvi, 112.f
— from burning hay, xix, 395; xxiv, 174.
—, blowing of, xxiv, 380.
—, cloth of, xxxix, 386.
—, ductility of, viii, 392.
—, on the decomposition of, D. Brewster, xl, 324.
—, decay of an object-, xxviii, 69.
— decomposed, rings of polarized light produced in specimens of, D. Brewster, xl. 325.
—, dividing of, by friction, R. Hare, xiii, 7.f
—, Guinand's flint, ix, 380.