Hydriodic acid, preparation of, xvi, 383; xlvii, 192.
Hydroboracite, analysis of, xxviii, 394.
Hydrobromic acid, xlvii, 192.
Hydro-carbo-sulphuric acid, how prepared, vii, 187.
[Hydrochloric acid], notice of experiments with reference to, Macaire and De la Rive, xi, 393.
— —, mode of preparing pure, from muriatic acid of commerce, R. Hare, xxxix, 371.
— —, fumigation with, at Plattsburgh, in 1819, viii, 200.
— —, condensation of, M. Faraday, vii, 357.
Hydrocyanic acid, F. Magendie on, ii, 81.
— —, memoir on, B. L. Oliver, iii, 182.