—, ether, hypo-nitro-acetic, xxxv, 329.

—, —, nitrous, new process for, ii, 326.f

—, —, nitric, process for, xxxiii, 241.f

—, —, sulphurous, xxxi, 275.

—, etherine, sulphate of, xxxi, 275.

—, eudiometer, a new, ii, 312f; x, 67f; xii, 36f; xxxvii, 383.

—, —, barometer gage, xxxii, 280.f

—, —, subsidiary, xv, 271.f

—, eudiometry by means of nitric oxide, xv, 260.f

—, freezing water by aid of sulphuric acid, apparatus for, xxvii, 132.f