—, loss of life by explosions of, xx, 415.
—, explosions due to defective material, xxxv, 317.
—, premium for protection against explosions, xx, 178.
—, rules regarding, in France, ix, 203.
—, safety of, in France, xix, 202.
—, feeding of, vii, 378.
—, on fuel for, B. Silliman, xx, 133.
—, use of American coal for, xlix, 310.
—, the galvanoscope, a means of detecting a deficiency of water in, C. G. Page, xxxvi, 141.f
—, on high and low pressure, A. B. Quinby, ix, 313.