—, —, —, —, report on, J. T. Ducatel and J. H. Alexander, xxvii, 1; xxxii, 191.
—, —, —, —, survey of, xxx, 393.
—, —, —, —, report on the new map of, noticed, xxxii, 191.
—, —, —, —, Bare Hills, near Baltimore, H. H. Hayden, xxiv, 349.f
—, —, —, Virginia, account of part of, and Tennessee, J. H. Kain, i, 60.
—, —, —, —, ibid, with parts of Alabama and Mississippi, E. Cornelius, i, 214, 317.f
—, —, —, —, coal mines and strata of, see [Coal.]
—, —, —, —, gold mines of, see [Gold.]
—, —, —, —, Kenawha and other western valleys, S. P. Hildreth, xxix, 83.
—, —, —, —, shell marl regions, J. Pierce, xi, 54.