— —, in 1825, connection of, with the temperature, xii, 199.
— —, in 1837, observations on, D. Olmsted, xxxiii, 393.f
— —, heat of, J. Henry, xlix, 405.
[Spring], monograph by, on the Lycopodiaceæ, xliv, 196.
[Springs] and fountains, on the origin of, G. W. Long, xvii, 336.
—, remarks on Mr. G. W. Long's paper on, xviii, 379.
—, geographical, geological and physical considerations on, H. de Thury, xviii, 267.f
—, freshwater, J. du Commun, xiv, 174.f
—, spouting fountain near Uncino, Naples, xxv, 194.
—, ibid, analysis of water of, xxv, 195.