—, apparatus for illustrating decomposition and recomposition of, R. Hare, xxxviii, 336.f
—, density of, maximum, xvi, 265; xxiii, 391; xxviii, 357.
—, discharge of a jet of, in water, xxi, 379.
—, evaporation of, xv, 180.
—, —, under electric insulation, xlvii, 190.
—, filtering for domestic purposes, xxx, 172.f
—, freezing, sparks emitted by, xxvi, 178.
—, —, apparatus for, with sulphuric acid, R. Hare, xxvii, 132.f
—, formation of, by compound blowpipe, iii, 91.
—, hard, solvent power of, xxi, 150.