— —, remarks on the nature of, by the Ex-King of Sweden, v, 178.
— —, —, ibid, Thienemann, x, 187.
— —, —, ibid, xiv, 97; xvi, 290; xix, 235.
— —, —, ibid, Hansteen's views, xiv, 109.
— —, —, ibid, Ideler's views, xxviii, 289.
— —, —, ibid, J. Ross, xxix, 348.
— —, —, ibid, B. F. Joslin, attributing it to crystallized vapor, xxx, 390; xxxv, 145.
— —, —, ibid, F. A. P. Barnard, xxxiv, 284.
— —, —, ibid, D. Olmsted, xxxii, 180.
— —, —, Mr. Rowall's theory of, xli, 41.